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Books > Professional & Technical > Agriculture & farming > Crop husbandry > General
"For anyone who wants information on the insect pests of rice, this book provides an enormous amount of information about the root and stem feeders, stem borers, gall midges, leafhoppers, planthoppers, foliage feeders and panicle feeders, together with colour illustrations and line drawings, supported by an extensive list of references to each chapter. For each insect, information is given on their distribution, host plants, their biology/ecology and plant damage they cause." Outlooks on Pest Management The rice plant is an ideal host for many insect species. All of the plant parts are vulnerable to insect-feeding from the time of sowing till harvest. There are over 800 insect species damaging rice in one way or another, although the majority of them do very little damage. In tropical Asia only about 20 species are of major importance. In Africa, 15 species of insects are considered major rice pests and in the Americas about 20 species are considered major pests. To develop effective pest management strategies, it is essential to properly identify and understand the biology and ecology of insect pests and the arthropods that help regulate their populations. This book effectively utilizes the unique knowledge and expertise of leading rice entomologists from Africa, Asia and the Americas to provide the first global coverage of rice insect pests. The discussion of each pest includes geographical distribution, plant hosts other than rice, description and biology, plant damage and ecology.
In this second edition of The Spirit of the Soil: Agriculture and Environmental Ethics, Paul B. Thompson reviews four worldviews that shape competing visions for agriculture. Productionists have sought increasing yields-to make two seeds grow where only one grew before-while traditional visions of good farming have stressed stewardship. These traditional visions have been challenged by two more worldviews: a call for a total cost accounting for farming and an advocacy for a holistic perspective. Thompson argues that an environmentally defensible systems approach must draw upon all four worldviews, recognizing their flaws and synthesizing their strengths in a new vision of sustainable agriculture. This classic 1995 study has been thoroughly revised and significantly expanded in its second edition with up-to-date examples of agriculture's impact on the environment. These include extensive discussions of new pesticides and the effects of animal agriculture on climate and other areas of the environment. In addition, a new final chapter discusses sustainability, which has become a dominant idea within environmental studies and agrarian political philosophy.
Medicinal Agroecology: Reviews, Case Studies and Research Methodologies presents information on applications of 'green therapies' in restoration towards global sustainability. These practices connect the world of medicinal plants with ecologic farming practice creating a compassionate socio-political worldview and heartfelt scientific research towards food sovereignty and a healthier future on planet Earth. The book communicates benefits of using plant-based solutions to manage the challenges of unsustainable practices in human healthcare, veterinary medicine, agriculture, forestry, and water management. The contributions introduce advances around plants and their active components to potentially treat disease, regulate dysfunction, and balance ecosystems. These practices are explored in further depth through three sections - I. POLICIES & FRAMEWORKS, II. INSIGHTS & OVERVIEWS, III. CASE STUDIES & RESEARCH METHODS. Edited by Immo Fiebrig, Medicinal Agroecology: Reviews, Case Studies and Research Methodologies appeals to those in various disciplines including agriculture and agroecology, healthcare, environmental sciences, and veterinary medicine.
This open access book shares the experiences of Tropical Legumes III (TLIII) project in facilitating access to seed of improved legume varieties to smallholder farmers through innovation platforms. It highlights practices and guiding principles implemented in eight developing countries of sub-Saharan Africa and South Asia. This book details key processes that respective teams employed to create an innovation space that delivers seed, other inputs, knowledge and financial services to agricultural communities and most importantly, the underserved farmers in remote areas of the drylands. It offers valuable insights into the pathway to establishing, promoting and operating innovation platforms to enhance the performance and competitiveness of legume crops' value chains, and addresses critical issues that must be considered to make innovation platforms more sustainable and attractive to beneficiaries. The book offers a wealth of practical insights for development workers, technical staff, and project managers. This publication is all about TLIII community of practice. It will definitely inspire other development workers and scientists to share their own experiences for others to learn from.
Cannabis sativa is best known as the source of marijuana, the world's most widely consumed illicit recreational drug. However, the plant is also extremely useful as a source of stem fiber, edible seed oil, and medicinal compounds, all of which are undergoing extremely promising research, technological applications, and business investment. Indeed, despite its capacity for harm as a recreational drug, cannabis has phenomenal potential for providing new products to benefit society and for generating extensive employment and huge profits. Misguided policies, until recently, have prevented legitimate research on the beneficial properties of cannabis, but there is now an explosion of societal, scientific, and political support to reappraise and remove some of the barriers to usage. Unfortunately, there is also a corresponding dearth of objective analysis. Towards redressing the limitation of information, Cannabis: A Complete Guide is a comprehensive reference summarizing botanical, business, chemical, ecological, genetic, historical, horticultural, legal, and medical considerations that are critical for the wise advancement and management of cannabis in its various forms. This book documents both the risks and benefits of what is indisputably one of the world's most important species. The conflicting claims for medicinal virtues and toxicological vices are examined, based mainly on the most recent authoritative scientific reviews. The attempt is made consistently to reflect majority scientific opinion, although many aspects of cannabis are controversial. Aside from the relevance to specialists, the general public should find the presentation attractive because of the huge interest today in marijuana. Unfortunately, society has become so specialized and compartmentalized that most people have limited appreciation of the importance of science to their lives, except when a topic like marijuana becomes sensationalized. This review of cannabis can serve as a vehicle for public education in the realm of science and technology. Indeed, towards the goal of disseminating the important information in this book to a wide audience, the presentation is user-friendly, concise, and well-illustrated in the hope that non-specialists will find the topics both informative and entertaining.
This book tackles the main feature of water-smart, soil-smart and crop-smart practices and their integration to sustainably enhance food production. The book includes some insights on the implications of using climate-smart practices in irrigated and rain-fed agriculture, and suggests approaches to eradicate the negative effects of water scarcity, climate variability and climate change. The book reviews the most important crops resilient to climate variability and their resistance to other biotic and abiotic stresses, and contains the existing practices in Egypt that achieved the three pillars of climate-smart agriculture
This book covers all aspects of hybrid breeding technologies applied for crop improvement in major field crops. The different male sterility systems such as genetic male sterility (GMS), cytoplasmic male sterility (CMS), cytoplasmic and genetic male sterility (CGMS), and male sterility induced by the photoperiod (PGMS), temperature (TGMS), and chemicals are discussed in detail. The different chapters in this book provide a timeline of the key breakthroughs witnessed in the field of plant male sterility technologies, their application in hybrid breeding, and the relevance to the current need for food security. In-depth insights into the genetic and regulatory mechanisms of plant male sterility have been presented. This includes discussion on a variety of molecular players that induce male sterility and rescue male fertility in the hybrid plants. To enhance this book's appeal, more emphasis has been given on the modern emerging approaches such as construction of heterotic pools that could boost hybrid breeding for enhanced crop performance amid climate change and growing population worldwide. This book is a guide for growers and industries related to field and horticultural crops. Further, it is a useful reference for plant breeders, researchers and extension workers, and students. The material can also be used for teaching undergraduate and postgraduate courses.
Major world oil crops and their products are among the most valuable commodity in today's world trade. Over the past couple of decades, oilseed production has increased to become the most important world sources of vegetable oils, in response to the rising world population and living standard. Recent technological advances made in breeding major world oil crops have led to higher production and improved product quality.This comprehensive volume encompasses recent innovations and practice in the production and use of different oil crops, including Brassica, Sunflower, Safflower, Cottonseed, Castor, Olive, Coconut, Oilpalm, Sesame, Groundnut, and Soybean. The contributors are leading specialists from different countries of the world. Much of the literature available on these crops is not up-to-date; hence this volume is a ready reference for researchers, breeders, biotechnologists, industrialists, and nutritionists. Dr. Surinder Kumpar Gupta, born in 1959, is currently working as Professor/Chief Scientist (Oilseeds) Plant Breeding & Genetics and Nodal officer in the School of Biotechnology, S K University of Agricultural Sciences & Technology. He holds a brilliant academic and service record and has been devoted to research on Oilseed Brassicas for nearly two decades. He obtained his post-graduate degree and PhD from Punjab Agricultural University. He is a recipient of a post-doctoral Fellowship in Plant Biotechnology and has published more than 100 research papers in esteemed national and international journals, mostly on Brassicas. He has already developed five varieties of rapeseed-mustard, and has written two books and edited three volumes on rapeseed & mustard breeding. For his excellent scientific endeavors, he has been conferred the 'Young Scientists Award: 1993-1994' by the State Department of Science & Technology.
Postharvest Ripening Physiology of Crops is a comprehensive interdisciplinary reference source for the various aspects of fruit ripening and postharvest behavior. It focuses on the postharvest physiology, biochemistry, and molecular biology of ripening and provides an overview of fruits and vegetables, including chapters on the postharvest quality of ornamental plants and molecular biology of flower senescence. It describes various developments that have taken place in the last decade with respect to identifying and altering the function of ripening-related genes. Taking clues from studies in grape and tomato as model fruits, the book reviews a few case studies and gives you a detailed account of molecular regulation of fruit ripening, and signal transduction and internal atmospheres in relation to fruit ripening. It also presents an overview of methods utilized in fruit proteomics, as well as a global proteome and systems biology analysis of fruits during ripening, and discusses the basics of dormancy, its molecular and physiological basis, and methods to break the dormancy. The book provides an overview of the most important metabolic pathways and genes that control volatile biosynthesis in model fruits, including tropical, subtropical, and temperate fruits, with a special emphasis on fruit ripening and the role of ethylene during this process. It presents a brief description of the composition of volatiles in various fruit species and addresses the influences of preharvest factors and postharvest technologies on fruit aroma, basic mechanisms responsible for postharvest flavor change in fresh produce, and the potential impacts of various postharvest technologies on flavor.
This book reviews modern strategies in the breeding of vegetables in the era of global warming. Agriculture is facing numerous challenges in the 21st century, as it has to address food, nutritional, energy and environmental security. Future vegetable varieties must be adaptive to the varying scenarios of climate change, produce higher yields of high- quality food and feed and have multiple uses. To achieve these goals, it is imperative to employ modern tools of molecular breeding, genetic engineering and genomics for 'precise' plant breeding to produce 'designed' vegetable varieties adaptive to climate change. This book is of interest to scientists working in the fields of plant genetics, genomics, breeding, biotechnology, and in the disciplines of agronomy and horticulture.
Biomass currently accounts for about fifteen per cent of global primary energy consumption and is playing an increasingly important role in the face of climate change, energy and food security concerns. Handbook of Bioenergy Crops is a unique reference and guide, with extensive coverage of more than eighty of the main bioenergy crop species. For each it gives a brief description, outlines the ecological requirements, methods of propagation, crop management, rotation and production, harvesting, handling and storage, processing and utilization, then finishes with selected references. This is accompanied by detailed guides to biomass accumulation, harvesting, transportation and storage, as well as conversion technologies for biofuels and an examination of the environmental impact and economic and social dimensions, including prospects for renewable energy. This is an indispensable resource for all those involved in biomass production, utilization and research.
Written by leading global experts, including pioneers in the field, the four-volume set on Hyperspectral Remote Sensing of Vegetation, Second Edition, reviews existing stateof- the-art knowledge, highlights advances made in different areas, and provides guidance for the appropriate use of hyperspectral data in the study and management of agricultural crops and natural vegetation. Hyperspectral remote sensing or imaging spectroscopy data has been increasingly used in studying and assessing the biophysical and biochemical properties of agricultural crops and natural vegetation. Volume III, Biophysical and Biochemical Characterization and Plant Species Studies demonstrates the methods that are developed and used to study terrestrial vegetation using hyperspectral data. This volume includes extensive discussions on hyperspectral data processing and how to implement data processing mechanisms for specific biophysical and biochemical applications such as crop yield modeling, crop biophysical and biochemical property characterization, and crop moisture assessments. The concluding chapter provides readers with useful guidance on the highlights and essence of Volume III through the editors' perspective. Key Features of Volume III: Covers recent abilities to better quantify, model, and map plant biophysical, biochemical water, and structural properties. Demonstrates characteristic hyperspectral properties through plant diagnostics or throughput phenotyping of plant biophysical, biochemical, water, and structural properties. Establishes plant traits through hyperspectral imaging spectroscopy data as well as its integration with other data, such as LiDAR, using data from various platforms (ground-based, UAVs, and earth-observing satellites). Studies photosynthetic efficiency and plant health and stress through hyperspectral narrowband vegetation indices. Uses hyperspectral data to discriminate plant species and\or their types as well as their characteristics, such as growth stages. Compares studies of plant species of agriculture, forests, and other land use\land cover as established by hyperspectral narrowband data versus multispectral broadband data. Discusses complete solutions from methods to applications, inventory, and modeling considering various platform (e.g., earth-observing satellites, UAVs, handheld spectroradiometers) from where the data is gathered. Dwells on specific applications to detect and map invasive species by using hyperspectral data.
Nanobiotechnology in agriculture is a new knowledge area that offers novel possibilities to achieve high productivity levels at manageable costs during the production and merchandising of crops. This book shows us how we can use the cutting-edge knowledge about agriculture, nanotechnology, and biotechnology to increase the agricultural productivity and shape a sustainable future in order to increase the social welfare in rural areas and preserve the environmental health. Specialists from several countries will provide their feedback on a range of relevant topics such as environment-friendly use of nanofertilisers, nanodevices, nano-food packaging, nanocoating and nanocarriers and their relationship with the modern agriculture.
Cotton is one of the most important fiber and cash crops throughout the world, and it plays a dominant role in the industrial and agricultural economies of many countries. Here is a rich resource of information on the cultivation and production of cotton. This volume provides an overview of the origin and evolution of cotton and its physiological basis and characterization, and goes on to discuss methods of cultivation, biotic stresses, and harvesting and postharvest technology. The volume addresses new advances in research for best cultivation methods, effective utilization of resources, and operations for achieving higher yields, thus achieving higher productivity. The authors take an interdisciplinary approach, providing valuable information necessary to increase cotton productivity to meet the world's growing demands.
Identification of desirable genotypes with traits of interest is discernible for making genetic improvement of crop plants. In this direction, screening of a large number of germplasm for desirable traits and transfer of identified traits into agronomic backgrounds through recombination breeding is the common breeding approach. Although visual screening is easier for qualitative traits, its use is not much effective for quantitative traits and also for those, which are difficult to score visually. Therefore, it is imperative to phenotype the germplasm accessions and breeding materials precisely using high throughput phenomics tools for challenging and complex traits under natural, controlled and harsh environmental conditions. Realizing the importance of phenotyping data towards identification and utilization of a germplasm as donors, global scientific community has exerted increased focus on advancing phenomics in crop plants leading to development of a number of techniques and methodologies for screening of agronomic, physiological, and biochemical traits. These technologies have now become much advanced and entered the era of digital science. This book provides exhaustive information on various aspects related to phenotyping of crop plants and offers a most comprehensive reference on the developments made in traditional and high throughput phenotyping of agricultural crops.
This is the first manual presenting a set of protocols for
production of doubled haploids (DH) in 22 major crop plant species
including 4 tree species. It contains various protocols and
approaches of DH production proven for different germplasm of the
same species. The protocols describe in detail all steps of DH
production - from donor plants growth conditions, through in vitro
procedures, media composition and preparation, to regeneration of
haploid plants and chromosome doubling methods. The users of this
manual will be able to choose among microspore versus anther
cultures, wide hybridisation or gynogenesis, the most suitable
method for production of DH in particular laboratory conditions for
their plant material. Numerous colour illustrations should help in
this decision. The user will also find information on organization
of a doubled haploid laboratory, basic DH media and on associated
simple cytogenetic methods for ploidy level analysis. The practical
protocols are supplemented with the list of published DH protocols
for other crop plants and separate chapters dealing with major
applications of DH in breeding, mutant production, transgenesis,
and genetic mapping and genomics.
We hear a lot about how agriculture affects climate change and other environmental issues, but we hear little about how these issues affect agriculture. When we look at both sides of the issues, we can develop better solutions for sustainable agriculture without adversely affecting the environment. Agroecology, Ecosystems, and Sustainability explores a modern vision of ecology and agricultural systems, so that crop production can be sustainably developed without further environmental degradation. With contributions from experts from more than 20 countries, the book describes how to make the transition to modern agroecology to help the environment. It examines the global availability of natural resources and how agroecology could allow the world population to reach the goal of global sustainable ecological, agricultural, and food production systems. The book discusses important principles that regulate agroecological systems, including crop production, soil management, and environment preservation. Making the link between theory and practices, the book includes examples of agroecology such as an interdisciplinary framework for the management of integrated production and conservation landscapes and the use of mechanized rain-fed farming and its ecological impact on drylands. An examination of how ecology and agriculture can be allied to ensure food production and security without threatening our environment, the text shows you how natural resources can be used in a manner to create a "symbiosis" to preserve ecological systems and develop agriculture.
Explore the Relationship between Crop and Climate Agricultural sustainability has been gaining prominence in recent years and is now becoming the focal point of modern agriculture. Recognizing that crop production is very sensitive to climate change, Climate Change Effect on Crop Productivity explores this timely topic in-depth. Incorporating contributions by expert scientists, professors, and researchers from around the world, it emphasizes concerns about the current state of agriculture and of our environment. This text analyzes the global consequences to crop yields, production, and risk of hunger linking climate and socioeconomic scenarios. Addresses Biotechnology, Climate Change, and Plant Productivity The book contains 19 chapters covering issues such as CO2, ozone on plants, productivity fertilization effect, UV (ultraviolet) radiation, temperature, and stress on crop growth. The text discusses the impact of changing climate on agriculture, environment stress physiology, adaptation mechanism, climate change data of recent years, impact of global warming, and climate change on different crops. It explores the overall global picture in terms of the effect of crops to climate change during abiotic stress and considers strategies for offsetting and adapting to ongoing climate change. Details how and why climate change occurs and how it effects crop productivity and agriculture Considers what measures should be taken to mitigate the effect of climate change on agriculture Highlights the effect of climate change on crop productivity, the invention of new technology, and strategies for agriculture practice to adapt to climate change Provides an analysis of the global warming effect on crop productivity due to climate change and long-term agriculture technique development Confirms the asymmetry between potentially severe agricultural damages such as the effect on crop yield due to variation in temperature Reports on the results of experiments to assess the effects of global climate change on crop productivity An asset to agriculturists, environmentalists, climate change specialists, policy makers, and research scholars, Climate Change Effect on Crop Productivity provides relevant information and opportunities for productive engagement and discussion among government negotiators, experts, stakeholders, and others concerned about climate change and agriculture.
Advances in Agronomy continues to be recognized as a leading reference and a first-rate source for the latest research in agronomy. As always, the subjects covered are varied and exemplary of the myriad of subject matter dealt with by this long-running serial.
Peanut, an amphidiploid, is an important food and oil crop and has an interesting evolutionary history. This book provides a glimpse of the advances in genetic resources and genomics research of peanut made during the last decade. It contains an overview of germplasm, advances in genetic and genomic resources, genetic and trait mapping, proteomic and transcriptomic analyses, functional and comparative genomics studies, and molecular breeding applications. This book should prove useful to students, teachers, and young researchers as a ready reference to the latest information on peanut genetics and genomics.
This book evaluates maize as a bioenergy fuel source from two perspectives. It explores whether the input energy needed to generate fuel significantly exceeded by the energy harvested. In examining this issue, the chapters provide assessments of the social, economic, and political impact on fuel pricing, food costs, and the environmental challenge with corn biomass the engine of change. It then examines whether corn be genetically improved so that its biomass is significantly increased, its cellulose-lignin complex made more amenable to harvesting and to processing, and grown in regions not normally associated with its cultivation of food.
Lessons learned in Latin America is about the use and dissemination of cover crops in different agroecosystems need to be made more widely available not only to Spanish speaking, but also Anglophone regions. This publication aims to inform a wide range of actors involved in rural development projects, as well as those in applied research, of the potential of cover crops as components of low external input agricultural (LEIA) systems.Cover Crops are, or have the potential to be, an important component in complex, diverse, risk-prone and resource poor farming situations.The publication includes selected case studies from four different countries within Latin America. These address key issues regarding crop cover integration in LEIA systems. A wide range of agroecosystems are covered by the case studies, so that the information can be adapted for use in other regions. The key issues covered by the case studies are the following: Cover crops in annual cropping systems (Honduras), Cover crops in Perennial crops (Bolivia), Role of cover crops in animal husbandry (Mexico), Cover crop systems - Soil improvement and conservation (Honduras), Alternatives to slash-and-burn (Mexico), Diffusion aspects of cover crop based systems, Applied research activities for agricultural systems improvement (Bolivia), Action research with campesino farmers in South-East Mexico.
Plant diseases cause serious threats to the successful cultivation of horticultural crops resulting in huge losses in their yields. These plant diseases are known to affect horticultural crops at various growth stages and reduce the yield as well as quality of fruits and vegetables. Diseases also cause subsequent postharvest transit and storage losses. The volumes in this 4-volume set, Diseases of Horticultural Crops: Diagnosis and Management, provide the latest diagnostic information along with effective management solutions to the problems of field crop plants caused by phytopathogens. The volumes provide an abundance of information for understanding and managing plant diseases, with emphasis on diagnostic techniques. The collection includes four volumes that cover: Volume 1: Important fruit crops' Volume 2: Vegetable crops' Volume 3: Ornamental plants and spice crops' Volume 4: Important plantation crops, medicinal crops, and mushrooms. The destructive potential of plant diseases in modern day agriculture has increased due to the use of cultivars having a narrow genetic base over huge areas. Knowledge of perpetuation and spread of the pathogens and various factors affecting disease development is necessary for practical management. Disease diagnosis is the prime requirement for recommending preventive or curative measures for effective disease management. These volumes provide the information on the diagnostic tools necessary and management techniques for the various crop types. The chapters cover key diseases, typical symptoms, and management strategies. The volumes also include photographs that show symptoms of important diseases, which are helpful in disease diagnosis. This 4-volume set will be valuable to scientists and researchers, faculty and students, administrators, and many others in the discipline of plant pathology and related agriculture and allied fields.
In Calabria, Italy, where bergamot has been successfully cultivated since the eighteenth century, it is commonly defined as "the prince of the Citrus genus." Written by an international panel of experts from multiple disciplines, Citrus bergamia: Bergamot and its Derivatives represents the most complete treatise on bergamot and its derivatives currently available. Although production of bergamot and its derivatives is
comparatively small, its chemical composition and biological
properties have been of great scientific interest and the oil is
considered essential in many high-quality perfumes. There is also
an increased demand for bergamot oil for food flavorings and
gastronomy. A tribute to bergamot, Citrus bergamia: Bergamot and
its Derivatives covers all aspects of bergamot, from its historical
and botanical origins, cultural practices, and transformation
technologies to the use of its derivatives, possible
contaminations, and biological activity.
Plant nutrition in greenhouse cultivation differs in many
essential aspects from field crops and justified the development of
a special publication on this subject. The high productions
realised and the specific produce quality requirements ensure high
uptakes of nutrients and a careful tuning of the application. The
covering with glass or plastic is responsible for specific climatic
conditions, which in modern greenhouse can be fully adjusted to the
requirements of the crop by automatic climate control. The natural
precipitation is excluded, thus, the water has to be applied in
greenhouses by artificial irrigation of water from different
origin. On thing and another involves that the growing conditions
are more or less completely controlled. This especially holds when
the crops are grown in substrates.The high uptake of minerals in
greenhouses requires high fertilizer additions. The quantities
absorbed by many crops are that high, that it is impossible to
supply the required quantities of nutrients as a base dressing at
once. Therefore, top dressings are common practice and are carried
out together with the supply of the irrigation water. Therefore,
fertigation is common practice and in greenhouses already for many
years. Specific systems have been developed for the application of
the right concentrations to keep the level of nutrients in the root
environment on the optimum level for the performance of the
crop.Beside the management of the nutrient application, greenhouse
growers also need a close control on the salt accumulation. This
accumulation is closely connected with the quality of the
irrigation water. Moreover, also the addition of the fertilizers
plays a role in the salt accumulation in the root environment.
Therefore, choice of the fertilizers used is important to prevent
accumulations of residual salts possibly supplied with the
fertilizers. On the other hand, for a number of crops the level of
fertilizer supply is not only focussed on the nutrient
requirements, but also utilized to realize a certain salt
concentration in the irrigation water. In this way the osmotic
potential of the soil solution is affected and this characteristic
is an important tool for the grower for the regulation of the
growth of the crop and the quality of the produce. When the
salinity passes certain threshold values, the growth and production
of crops is reduced, but the quality of the harvested produce of
some crops is improved. Such regulations are very precisely
adjusted to the crops grown and to the growing conditions in the
greenhouse. Another line is the development of sustainable
production methods. For the main subject discussed in this book,
namely plant nutrition, methods for an optimum use of fertilizers
with a minimum environmental pollution were developed last
decennia. In this field the development of the cultivation in
substrates offered excellent possibilities for an optimal use of
water and nutrients. With this growing method it has been proved
that it is possible to grow greenhouse crops without any discharge
of minerals to the environment. The conditions required for such
cultivation are thoroughly discussed. Moreover, growing in
substrates offers suitable opportunities for optimization of yield
and quality, because of the adequate control on the conditions in
the root environment, like the supply of water and nutrients.
However, this requires a perfect management of water and nutrient
supply. Not only for the fact that plants are grown in very small
rooting volumes and therefore, mistakes with irrigation and
fertilizer supply easily will damage the crop, but also for the
fact that the fertilizer supply is complicated. For substrate
growing it is not enough that some nutrient elements are
controlled, like with soil grown crops, but the full packet of
nutrients essential for plant growth will be kept in view. This
means that the addition of six macro nutrients and at least six
micro nutrients will be regulated, with respect to the right
concentration and mutual ratios in the irrigation water. Physical
and chemical properties of substrates essentially differ and a
right use of these properties is necessary for a right
interpretation of the nutrient and salinity status. To this purpose
the grower is supplied with detailed recommendations developed by
the research stations founded in The Netherlands. The horticultural
research stations in The Netherlands developed numerous tools to
the growers often in cooperation with the horticultural industries
and laboratories. An example of such cooperation is the development
of soil and substrate testing methods by the research stations.
These methods offered excellent possibilities for a frequent
control for the salt and nutrient status in the root environment.
Together with these methods schedules for interpretation and
recommendation were developed and adjusted for computerized
information to the growers. |
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