This collection features six peer-reviewed reviews on optimising rootstock health. The first chapter considers recent advances in irrigation techniques used in sustainable vegetable cultivation and reviews the performance and efficiency of these systems. The second chapter details the need to optimise precision in orchard irrigation management, focussing on matching water supply to plant demand as a means of achieving this. The third chapter assesses irrigation management systems for tomato production and how these can be optimised alongside nutrient management to ensure the production of safe and nutritious tomatoes. The fourth chapter summarises the common types of irrigation systems found in soilless culture production, as well as the emergence of new systems, including plant-based sensing and monitoring systems. The fifth chapter highlights the need for more sustainable water use in ornamental production systems and the methods which can be used to achieve this, such as reducing runoff volume. The final chapter considers recent advances in irrigation management in greenhouse cultivation, focussing on water balance, crop evapotranspiration techniques and irrigation scheduling.

This collection features six peer-reviewed reviews on advances and in detecting and forecasting crop pests and diseases. The first chapter introduces the concept of machine learning to identify and diagnose crop diseases, focussing on the deep learning concept. The second chapter discusses recent advances in crop disease forecasting models, focussing on the application of precision agriculture technologies and Earth observation satellites to identify areas at risk of possible disease outbreaks. The third chapter explores the contribution of remote sensing in improving the ways in which plant health is monitored in response to exposure to biotic stresses, such as disease. The fourth chapter reviews how sensor technologies in combination with informatics and modern application technologies can contribute to more effective pest control. The fifth chapter assesses the role of decision support systems for pest monitoring and management through information technology, such as spectral indices and image-based diagnostics. The final chapter addresses key issues and challenges in pest monitoring and forecasting models, such as the limitation of some traps in attracting insects through the use of sex pheromones.

This collection features four peer-reviewed reviews on proximal sensors in agriculture. The first chapter addresses the use of proximal sensors to evaluate crop health and performance throughout the growing season. The chapter reviews the evolution of crop sensors, as well as the issues and limitations facing further development, including the need to develop sensors equipped with the ability to detect stresses other than nitrogen. The second chapter reviews recent advances in using proximal sensors to detect crop health status in horticultural crops. The chapter considers the application of sensors to detect micro-environmental parameters linked to pathogen lifecycles which can then be utilised to predict disease risk. The third chapter reviews advances in using proximal spectroscopic sensors to assess soil health. It assesses principles and technologies, key properties measured, advantages and disadvantages together with applications in improving soil management. The final chapter discusses advances in the use of proximal sensor fusion and multi-sensor platforms for improved crop management. The chapter considers the combination of remote sensing from satellites and weather station data as the basis for crop growth models and explores the benefits of utilising a selection of tools to investigate yield prediction.

This collection features four peer-reviewed reviews on Artificial Intelligence (AI) applications in agriculture. The first chapter reviews developments in the use of AI techniques to improve the functionality of decision support systems in agriculture. It reviews the use of techniques such as data mining, artificial neural networks, Bayesian networks, support vector machines and association rule mining. The second chapter examines how robotic and AI can be used to improve precision irrigation in vineyards. The chapter pays particular attention to robot-assisted precision irrigation delivery (RAPID), a novel system currently being developed and tested at the University of California in the United States. The third chapter reviews the current state of mechanized collection technology, such as the development of harvest-assist platforms, as well as the possibilities of these machines to incorporate artificial vision systems to perform an in-field pre-grading of the product. The final chapter explores the emergence of the automated assessment of plant diseases and traits through new sensor systems, AI and robotics. The chapter then considers the application of these digital technologies in plant breeding, focussing on smart farming and plant phenotyping.

There is increasing competition for water resources in the face of declining aquifer reserves and increasing risk in many areas of drought related to climate change. At the same time poor water management is damaging agriculture with problems such as salinization, waterlogging, erosion and run-off. This volume summarises the wealth of research on understanding and better management of water resources for agriculture. Part 1 reviews fundamental issues such as plant water use and soil water retention. Part 2 discusses ways of mapping and monitoring groundwater and surface water resources whilst Part 3 covers other sources such as rain and floodwater, waste and brackish water. Part 4 surveys developments in irrigation techniques such as drip irrigation and fertigation. The final sections in the book discuss ways of using water resources more efficiently such as site-specific and deficit irrigation techniques. With its distinguished editor and international team of expert authors, this wlll be a standard reference for agronomists, scientists involved in water and irrigation science as well as government and non-governmental organisations responsible for agriculture and water resource management.

This collection features six peer-reviewed reviews on the economics of key agricultural practices. The first chapter assesses the economic impact of horticultural crops and integrated pest management programmes. The chapter highlights the importance of considering agricultural system design and the utilisation of novel control tactics. The second chapter considers the economic consequences of novel integrated weed management (IWM) strategies, as well as the different approaches used to assess the economics of IWM strategies. The third chapter reviews developments in methods to assess the economic value of agricultural biodiversity. The chapter also outlines the limitations of these methods and proposes a possible, novel way forward. The fourth chapter provides an overview of the economic barriers faced by smallholder farmers, including land, labour, capital and inputs, and their impact on farm profitability. The fifth chapter reviews the economics of soil health, focussing on the adoption of soil health management practices by farmers and the effectiveness of incentives. The final chapter examines the use of economic research as a tool to determine the profitability and adoption potential for a number of precision agriculture technologies.

Sustainable Water Resource Development and Management is a comprehensive volume on this important topic. It broadly covers the sources, availability, demand, and supply of water and its uses in irrigation and crop production in agriculture. It then delves into many specific aspects of water resource development and management, including Irrigation creation and utilization Water storage efficiency, conveyance efficiency, distribution efficiency, and application efficiency The role of water in plant systems and soil-water-plant relationships Estimating the water need for irrigation along with management strategies Water quality in agriculture as well as the impact of water quality on human health Water pricing Wetland management and water productivity Water pollution in agriculture and water contamination in urban and rural areas Examples and case studies are included to illustrate and reinforce the text, such as reviews of river linking projects, adopted water management technologies for agricultural farms, important irrigation projects (both minor and major), and more.Written by two eminent researchers and scientists in agricultural water management, this informative volume is designed for students of agriculture, researchers, policymakers, and teachers engaged in the field of water management.

This book uses resource economics costing approaches incorporating externalities to estimate the returns for the country's irrigation and demonstrates how underestimating the cost of water leads farmers to overestimate profits. The importance of the subject can be judged in light of the fact that India is the largest user of groundwater both for irrigation and for drinking purposes, pumping twice as much as the United States and six times as much as Europe. Despite water's vital role in ensuring economic security for the nation and farmers alike by supporting more than 70% of food production, water resource economists are yet to impress upon farmers and policymakers the true value of water and the urgent need for its sustainable extraction, recharge and use. In an endeavor to promote more awareness, the book further delineates the roles of the demand side and supply side in the economics of irrigation, and explains how the cost of water varies with the efforts to recharge it, crop patterns, degrees of initial and premature well failure and degrees of externalities. It also discusses the importance of micro-irrigation in the economics of saving water for irrigation, estimating the marginal productivity of water and how it improves with drip irrigation, the economics of water sharing and water markets, optimal control theory in sustainable extraction of water, payment of ecosystem services for water and how India can effectively recover. In closing, the book highlights the role of socioeconomic and hydrogeological factors in the economics of irrigation, which vary considerably across hard rock areas and the resulting limitations on generalizing.

Managing Water on China's Farms: Institutions, Policies and the Transformation of Irrigation under Scarcity is a comprehensive and current look at the water shortage problems in China. While China has emerged as a major player in the world economy, water is the most critical factor that limits the country's further growth. China's growing water problems also have a large impact worldwide, with public health as well as economic impacts. If China were to rely heavily on food produced outside of China, the massive volume of food imports would raise food prices internationally. This book examines a series of water issues, beginning with a description of the water shortage problems in China, particularly in the northern part of the country. It then looks at the government and farmers' responses and whether past policies have been effective in resolving the water problems. Managing Water on China's Farms documents the change of existing and new water management institutional forms over time and across provinces throughout northern China, and then assesses the impacts of these changes in the rural sector. Finally, it examines potential solutions that the research has uncovered, answering the question: Who can build the bridge over China's troubled waters? Using analyses from information collected firsthand in China's rural villages, the series of surveys covers diverse geographic regions that are representative of north China and includes perspectives from multiple stakeholders such as village leaders, water managers, and farmers. The policy-oriented research and rich analysis in this book make it of interest to both policy makers and researchers with a focus on China water problems. This book can also be used in a Master or Ph.D. level resource economics course.

This collection features four peer-reviewed literature reviews on soil erosion in agriculture. The first chapter identifies different types of soil degradation, focussing primarily on soil erosion by water. The chapter explores the impact of soil erosion processes on soil properties that relate directly to crop growth, including soil depth, water-holding capacity, carbon content and nutrient reserves. The second chapter reviews advances in techniques used to assess and measure soil erodibility by water, such as computer aided tomography. The chapter considers the role of static and dynamic soil properties in the erosion process, as well as the challenges that have developed as a result of climate change. The third chapter assesses the impact of heavy metal contamination on soil and its consequent role in the degradation of soil health. The chapter describes the sources, impacts, indicators and remediation of heavy metal contamination, as well as the development of improved soil management practices, including effective pollution control strategies. The final chapter discusses the implementation of integrated strategies under Conservation Agriculture (CA) farming systems to restore soil productivity in degraded agricultural lands in tropical and subtropical regions in Brazil. The chapter additionally considers the adoption of CA as a tool to prevent and reverse instances of soil degradation.

This collection features four peer-reviewed literature reviews on biodiversity management practices in agriculture. The first chapter reviews biodiversity management practices and benefits in Conservation Agriculture (CA) systems. After looking at the importance of soil microorganisms, the chapter looks at how CA systems contribute to soil biological activity, particularly the way cover crops and rotations, with a no-till regime, can enrich soil and the multitude or organisms living in it. The second chapter synthesizes and reviews the published information on grass hedges and their soil benefits, to better understand the potential of grass hedges for managing water erosion as well as improving soil health in agricultural lands. The third chapter reviews research on ways of modifying the agricultural landscape to reverse the decline in a range of fauna and flora. The chapter also reviews the characteristics and types of field margins, as well as their role in agroecosystems. The chapter concludes with a discussion on managing field margins to promote insect biodiversity and rare arable plant populations. The final chapter considers the impact of agricultural intensification on agricultural landscapes, farming systems and biodiversity. The chapter highlights how hedgerows can contribute to the multifunctionality of agroecosystems in intensively-managed agricultural landscapes, focussing on improved pest regulation and enhanced pollination services.

The countries that make up the MENA region display wide diversity. One of the poorest countries in the world sits alongside two of the wealthiest, whilst the region's natural resources range from immeasurable oil and gas reserves to some of the scantiest natural endowments anywhere in the world. Yet through this diversity runs a common thread: water scarcity. Now, through the impact of human development and climate change, the water resource itself is changing,bringing new risks and increasing the vulnerability of all those dependent on water. Chris Ward and Sandra Ruckstuhl assess the increased challenges now facing the countries of the region, placing particular emphasis on water scarcity and the resultant risks to livelihoods, food security and the environment. They evaluate the risks and reality of climate change in the region, and offer an assessment of the vulnerability of agriculture and livelihoods. In a final section, they explore the options for responding to the new challenges, including policy, institutional, economic and technical measures.

This specially curated collection features five reviews of current and key research on improving water management in crop cultivation. The first chapter focuses on site-specific variable rate irrigation systems utilised across agriculture and examines site-specific data acquisition and mining approaches, such as soil mapping and zone delineation. The second chapter considers the main deficit irrigation strategies used in agriculture to improve crop water productivity. It also explores the status of site-specific irrigation management and its role in minimizing agricultural water use. The third chapter reviews progress in winter wheat water management and water-use efficiency (WUE), drawing on long-term field experiments in the U.S. southern Great Plains. It discusses the key relationships between yield, evapotranspiration, WUE and best management practices. The fourth chapter considers the key techniques for improving rice water productivity through enhanced irrigation practices aiming to reduce irrigation water use in rice cultivation, such as the Alternate Wetting and Drying technique. The final chapter examines the main irrigation methods used in dryland sorghum production. It also reviews the relationship between soil properties and irrigation management.

This collection features five peer-reviewed literature reviews on decision support systems (DSS) in agriculture. The first chapter provides a review of DSS in agriculture, whilst addressing the key questions surrounding their use for farm soil and crop management. The different aspects of agricultural DSS design, implementation and operation are also discussed. The second chapter assesses the role of DSS for pest monitoring and management through information technology such as, remote sensing, GIS, spectral indices, image-based diagnostics, and phenology-based degree day models. The third chapter discusses the potential of implementing DSS within the growing mechanisation in greenhouses. It examines differences in development and application of deterministic explanatory and data-based models for real-time control and DSS. The fourth chapter explores the key issues associated with deploying DSS in precision agriculture, whilst also considering their human and social aspects. The chapter also considers how future research on DSS can be moulded to improve productivity in a precision agriculture setting. The final chapter outlines the importance of a participatory approach in DSS development, whilst also offering examples of climate-based DSS for crop and land management, pest and disease management, and livestock (dairy) management.

This collection features five peer-reviewed literature reviews on fertiliser use in agriculture. The first chapter examines the role of biofertilizers and consortia of microorganisms to improve the effectiveness of organic fertilization, before moving on to consider the use of animal excrement, including manures, slurry and guano. The second chapter assesses the management of mineral fertilisers and organic manures in relation to its effects on soil health in terms of soil organic carbon and nitrogen, soil acidification and soil microbiology. The third chapter discusses the history, current status, and future needs of fertilizer developments in light of the goal of achieving global sustainability. It reviews developments in using efficient fertilizer sources to meet the needs of advancing yields of modern crop cultivars/hybrids. The fourth chapter reviews some of the approaches used by decision support systems to determine fertiliser application decisions. The chapter highlights direct methods and indirect techniques: simulation models, yield forecasts using data-driven approaches and yield forecasts based on water supply. The final chapter explores the implementation of foliar fertilizer sprays in agriculture for improving crop yield and quality, as well as improving plant performance under abiotic and/or biotic stress threats.

This book focuses on best management practices for drip irrigated crops. It cover irrigation methods, scheduling of micro irrigation, and mulching and crop performance. Micro irrigation techniques with diverse crops are discussed, including sweet pepper, chili, tomatoes, cauliflower, wheat, sweet peas, sugarcane, and potatoes. The performance of the various techniques has been tested and evaluated in the field. Written by experts on micro irrigation, this valuable book is a must-have for micro irrigation professionals as well as advanced students.

The reuse of wastewater in irrigation is being practiced only recently to solve water scarcity problems in agriculture. Management of water, soil, crop, and operational procedures, including precautions to protect farm workers, play an important role in the successful use of sewage effluent for irrigation. Appropriate water management practices must be followed to prevent salinization. If salt is not flushed out of the root zone by leaching and removed from the soil by effective drainage, salinity problems can build up rapidly. Leaching and drainage are, thus, two important water management practices to avoid salinization of soils. One of the options that may be available to farmers is the blending of treated sewage with conventional sources of water to obtain a blended water of acceptable salinity level. This important book focuses on the use of wastewater as a valuable resource for agricultural micro irrigation purposes. It covers effective wastewater management practices in a variety of climates, including semi-arid regions and others; how to perform effective evaluations to gauge the quality of the water on plants, including potatoes, maize, and eggplant; and the cost-benefit of using wastewater. It addresses the sources of wastewater for irrigation and the problems along with challenges, including water quality, clogging, soil quality, and more. The mission of this compendium is to serve as a reference manual for professionals in biological and civil engineering, horticulture, soil and crop science, and agronomy, as well as for graduate and undergraduate students in related fields. It will be a valuable reference for professionals who work with micro irrigation/wastewater and water management, for technical agricultural centers, irrigation centers, agricultural extension services, and other agencies that work with micro irrigation programs.

This new book, the fourth volume in the Innovations and Challenges in Micro Irrigation book series, examines the potential of solar energy and other emerging energy technologies in micro irrigation to create sustainable energy sources. The authors discuss a variety of innovative micro irrigation system designs, with a special focus on solar energy and photovoltaic (PV) energy.

The increasing global demand for food and other agricultural products calls for urgent measures to increase water use efficiency which is, with plant nutrient availability, one of the two main limiting factors in crop production. Although only 20% of all cultivated land in the world is under irrigation, it provides 35-40% of all crop production. Because of higher yields under irrigated agriculture, investments for irrigation are usually a top priority. However, it has become a matter of serious concern in recent years that, despite their high co~ts, the performance of many irrigation projects has fallen short of expectations as a result of inadequate water management at both farm and system levels. Crop production increase has been well below the project targets. The greatest potential for increasing food and other agricultural products is the more efficient use of naturally occurring precipitation in conjunction with improved soil fertility management. Until recently, regardless of the amounts and distribution of rainfall, irrigation practices were used almost exclusively to supplement the amount of soil water stored in the root zone to such an extent that the available soil water never allowed the crop to suffer from water stress throughout the growing season. As a result, even today farmers still tend to over-irrigate to ensure a bountiful amount of water stored.

This book examines the tablon system, a type of irrigated, raised-bed horticulture found in the present-day village of Panajachel in Guatemala. It demonstrates how individual Mayan farmers use the tablon system as a strategy for adapting to the demands of a local economy.

This book forms the proceedings of the 18th European conference on irrigation and drainage. Water is not a free commodity, and demand is becoming more and more intense for its allocation. This book focuses on the role of irrigation and drainage in the debate on water, and will be used by planners, designers and policy makers internationally.

Management Strategies for Water Use Efficiency and Micro Irrigated Crops presents new research and technologies for making better use of water resources for agricultural purposes. The chapters focus on better management to improve allocation and irrigation water efficiency and look at performance factors as well. Chapters look at irrigation technology, environmental conditions, and scheduling of water application. One section of the book focuses on water management in the cultivation of sugarcane, a very important industrial crop used in many fields. Other sections are devoted to principles and challenging technologies, water use efficiency for drip-irrigated crops, performance of fertigated rice under micro irrigation, and evaluation of performance of drip-irrigated crops. This valuable book is a must for those struggling to find ways to address the need to maintain efficient crop production in the midst of water shortages. With chapters from hands-on experts in the field, the book will be an invaluable reference and guide to effective micro irrigation methods.

The prospects for the future are clear. Agriculture will have to respond to changing patterns of demand for food and combat food insecurity and poverty amongst marginalized communities. In so doing, agriculture will have to compete for scarce water with other users and reduce pressure on the water environment. Moreover, water managers have to unlock the potential of agricultural water management practices to raise productivity of water, spread equitable access to water, and conserve the natural productivity of the water resource base. This PhD thesis presents field tests combined with modelling work on the cultivation of irrigated Teff (Eragrostic Tef) in the Awash Rift Valley of Ethiopia. The field experiments were conducted during the dry season for two years. The results of these studies revealed that dealing with improvement of water productivity is closely related to the irrigation practice of regulated deficit irrigation and has a direct effect on yield, as the amount of water applied decreases intentionally the crop yield drops. Overall, this research has demonstrated the potential and the limitations of combining experimental fieldwork with modelling to optimize agricultural water productivity for Teff cultivation. Focusing on only experimental fieldwork is a single approach, and is hardly ever sufficient for achieving the best solutions to current water management problems. New guidelines on using the combined effort of experimental work in the field to produce field experimental data and using models are clearly needed. It is to these needs as well as to the required increase of Teff production under water scarce conditions that this research provides its main contribution.