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Books > Earth & environment > Earth sciences > Geology & the lithosphere > Soil science, sedimentology
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Agroecosystems of South India - Nutrient Dynamics, Ecology and Productivity (Paperback)
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Agroecosystems of South India - Nutrient Dynamics, Ecology and Productivity (Paperback)
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Agroecosystems of South India is a unique treatise that deals with
the relevance of natural resources, genetic stocks, fertilizers,
and agronomic practices on the productivity of agroecoregions.
Within the context of this book, an agroecosystem has been defined
as a conglomerate of small cropping zones, which may be
mono-cropping expanses or intercrops that occur in various
geographic regions of South India. South India abounds with several
such agroecosystems that encompass field crops, vegetables, cash
crops, plantations, and forest species. However, the main emphasis
within this volume is restricted to agroecosystems that include
major cereals, legumes, and oil seed crops. There are 10 chapters
in this volume. The first, on historical aspects, traces important
events related to domestication, introduction of crop species,
agricultural implements, development of soil fertility and crop
husbandry procedures. An introductory chapter on Agroecosystems
delineates various agroecoregions of South India. Their
classification based on physiography, soils, and climatic
parameters have been dealt with in great detail. Descriptions on
natural resources such as soils and their fertility conditions;
water resources; climatic conditions including precipitation
patterns; and crops and their genotypes are available in chapter 2.
The impact of soil fertility and nutrient dynamics on ecosystematic
functions and productivity of crops in an agroecosystem forms the
central piece of discussions within chapters 3 to 9. Historical
background, geographical settings, agroclimate, soils, cropping
systems, and productivity trends have been provided for each
cropping ecosystem. Recent advances and details on aspects of
nutrient dynamics, such as soil nutrients, their availability,
physico-chemical transformations, nutrient fluxes, inorganic
fertilizer supply, organic manures, crop residue recycling,
nutrient carry over and nutrient balances/imbalances form the core
of each chapter. The impact of beneficial soil microbes such as
Rhizobium, Plant Growth Promoting Rhizobacteria and Arbuscular
Mycorrhizas, on nutrient dynamics in soil has also been discussed.
More recent developments dealing with modeling nutrients in
cropping ecosystems, computer based-simulations, precision farming
and site-specific nutrient management have been emphasized.
Forecasts on the impact of nutrient dynamics on the future course
of agroecosystems are also available. Overall, this book is a
scholarly edition that aims at providing an excellent exposition of
recent developments within various agroecosystems of South India to
a global audience. It highlights the importance of soil fertility
and nutrient dynamics within agroecosystems to total food grain and
fodder production in South India. It will be a useful book to
researchers, professors, and students dealing with agriculture,
environmental science, ecology, and plant science.
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