Water And Crop Growth
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Water And Crop Growth
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Author : A.K. Kolay
language : en
Publisher: Atlantic Publishers & Dist
Release Date : 2008
Water And Crop Growth written by A.K. Kolay and has been published by Atlantic Publishers & Dist this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Crops categories.
No crop can be grown without being adequately supplied with the requisite amount of water at the proper time. A thorough knowledge of the hydrological cycle, amount and distribution of rainfall, water resources and irrigation projects in India facilitates efficient utilization of water for crop production. Inadequate supply of water to crops in semi-arid and arid regions adversely affects agricultural production. Properties of water, the mode of its entry into the soil and its absorption by roots of crops are important for irrigation. This necessitates accurate determination of the soil moisture content, the plants and available water which is essential for growth and yield of crops. Its deficiency adversely affects their growth and yield. Irrigation must be extended to unirrigated areas in order to increase the production of food, fibre and fodder for which we must know the source of irrigation water, units and methods of measurement of water, methods of irrigating crop fields, factors affecting the choice of irrigation methods, the degree of the suitability of the available water for irrigating crops and the factors affecting the suitability of water for irrigation. As water is a relatively scarce commodity, we must know whether water of a little inferior quality can be utilized to irrigate crops. In addition, we must be familiar with the precautions which need to be taken in this regard. The accumulation of excess water in the soils of the crop fields affects the growth of crops adversely enough to reduce their yields. Choice of the method of land drainage varies with the variation in the topography of the land. It is also necessary to rectify the causes of waterlogging to bring the waterlogged land back under the plough to increase agricultural production. This necessitates drainage investigation and laying out of the proper drainage system. Water requirement of crops depends on the climate and the crop. More water is required to produce crops in the arid region than in the humid region. Crops like paddy and sugar cane require much larger amount of water than finger millet and pearl millet. The book extensively deals with all these aspects related to soil and crop production and suggests measures to enhance productivity through water conservation and proper management of water resources. It will be highly useful for the students, teachers and researchers working in this field. Besides, agriculturists and general readers will also find it useful and informative.
Water Use In Crop Production
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Author : M.b. Kirkham
language : en
Publisher: CRC Press
Release Date : 1999
Water Use In Crop Production written by M.b. Kirkham and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Business & Economics categories.
With an eye to reducing water waste, agronomists, researchers, and growers consider methods for determining the amount of water crops need, given the nature of the crop and the climate in which it is grown. In the 16 papers printed here, attention is given to evapotranspiration responses to carbon dioxide and temperature, responses to water shortages, the effects of irrigation, the reuse of drainage waters, and risk assessments and irrigation requirements. Specific crops are also discussed, including citrus plants, cotton, safflower, rice, sorghum, and sunflower. Co-published as Journal of Crop Production; v.2, no.2 (#4) 1999. Annotation copyrighted by Book News, Inc., Portland, OR
Response Of Crops To Limited Water
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Author : Lajpat Ahuja
language : en
Publisher: ASA-CSSA-SSSA
Release Date : 2008
Response Of Crops To Limited Water written by Lajpat Ahuja and has been published by ASA-CSSA-SSSA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Science categories.
Water stress and heat stress are considered to be two primary factors that limit crop production in many parts of the world. Global warming appears to be increasing the water requirements of plants. Understanding the impact of water deficit on plant physiological processes and efficient water management are of great concern in maintaining food production to meet ever increasing world food demand. The book addresses various climatic soil and plant factors that contribute to the water use efficiency in plants subjected to water stress. It covers all issues related to soil, plant and climatic factors that contribute to the crop responses to water stress. The books advances the knowledge in improving and sustaining crop yields in ever increasing unpredictable climatic fluctuations This book uses crop simulation models for response of crops to limited water under various management and climatic conditions.
Crop Growth And Soil Water Balance Modeling To Explore Water Management Options
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Author : Ines, A. V. M.Droogers, P.Makin, I. W.Das Gupta, A.
language : en
Publisher: IWMI
Release Date : 2001
Crop Growth And Soil Water Balance Modeling To Explore Water Management Options written by Ines, A. V. M.Droogers, P.Makin, I. W.Das Gupta, A. and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Crops categories.
The study was on the performance of the decision support system for agrotechnology transfer (DSSAT) and the soil water atmosphere plant (SWAP) under an acid sulphate soil. The comparison of these models was done as a prerequisite to the selection of an appropriate model, which is capable of simulating water management scenarios, water balance and crop growth, to be coupled with an adaptive optimization algorithm that can be used to explore water management options.
Physiology Of Crop Production
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Author : N.K. Fageria
language : en
Publisher: CRC Press
Release Date : 2006-05-18
Physiology Of Crop Production written by N.K. Fageria and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-05-18 with Technology & Engineering categories.
This single volume explores the theoretical and the practical aspects of crop physiological processes around the world The marked decrease over the past century in the land available for crop production has brought about mounting pressure to increase crop yields, especially in developing nations. Physiology of Crop Production provides cutting-edge research and data for complete coverage of the physiology of crop production, all in one source, right at your fingertips. This valuable reference gives the extensive in-depth information soil and crop professionals need to maximize crop productivity anywhere the world. Leading soil and plant scientists and researchers clearly explain theory, practical applications, and the latest advances in the field. Crop physiology is a vital science needed to understand crop growth and development to facilitate increases of plant yield. Physiology of Crop Production presents a wide range of information and references from varying regions of the world to make the book as complete and broadly focused as possible. Discussion in each chapter is supported by experimental data to make this book a superb resource that will be used again and again. Chapter topics include plant and root architecture, growth and yield components, photosynthesis, source-sink relationship, water use efficiency, crop yield relative to water stress, and active and passive ion transport. Several figures and tables accompany the extensive referencing to provide a detailed, in-depth look at every facet of crop production. Physiology of Crop Production explores management strategies for: ideal plant architecture maximizing root systems ideal yield components maximizing photosynthesis maximizing source-sink relationship sequestration of carbon dioxide reducing the effects of drought improving N, P, K, Ca, Mg, and S nutrition improving micronutrient uptake Physiology of Crop Production is an essential desktop resource for plant physiologists, soil and crop scientists, breeders, agronomists, agronomy administrators in agro-industry, educators, and upper-level undergraduate and graduate students.
Principles Of Soil And Plant Water Relations
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Author : M.B. Kirkham
language : en
Publisher: Elsevier
Release Date : 2004-10-23
Principles Of Soil And Plant Water Relations written by M.B. Kirkham and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-10-23 with Science categories.
Principles of Soil and Plant Water Relations combines biology and physics to show how water moves through the soil-plant-atmosphere continuum. This text explores the instrumentation and the methods used to measure the status of water in soil and plants. Principles are clearly presented with the aid of diagrams, anatomical figures, and images of instrumentation. The methods on instrumentation can be used by researchers, consultants, and the military to monitor soil degradation, including measurements of soil compaction, repellency, oxygen diffusion rate, and unsaturated hydraulic conductivity. Intended for graduate students in plant and soil science programs, this book also serves as a useful reference for agronomists, plant ecologists, and agricultural engineers. * Principles are presented in an easy-to-understand style * Heavily illustrated with more than 200 figures; diagrams are professionally drawn * Anatomical figures show root, stem, leaf, and stomata * Figures of instruments show how they work * Book is carefully referenced, giving sources for all information * Struggles and accomplishments of scientists who developed the theories are given in short biographies.
Actual Crop Water Use In Project Countries
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Author : Robina Wahaj
language : en
Publisher: World Bank Publications
Release Date : 2007
Actual Crop Water Use In Project Countries written by Robina Wahaj and has been published by World Bank Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Agricultural production categories.
This report aims to synthesize the results of a crop water use study conducted by country teams of the GEF/World Bank project, Regional Climate, Water, and Agriculture: Impacts on and Adaptation of Agro-ecological Systems in Africa. It also presents the results of the second phase of the study based on climate change scenarios, conducted by the South Africa country team. The actual evapotranspiration of five commonly grown crops-maize, millet, sorghum, groundnuts, and beans-in two selected districts were analyzed by six country teams. In addition, two country teams also analyzed other crops grown in the districts. The regional analysis shows that the actual yield of the different crops-specifically of maize and groundnuts-improves with an increase in actual evapotranspiration, although the gap remains wide between actual and potential yield and actual and maximum evapotranspiration, especially for the rainfed crops. This highlights the importance of improved water management if agriculture is to play an important role as a source of food security and better livelihoods. The report highlights the vulnerability of maize to water stress and the increased risks to the viability of rainfed farming systems based on this crop. The results of the second phase of analysis show that a 2°C increase in the temperature and a doubling of carbon dioxide concentration in the atmosphere will shorten the growing period of maize, which will result in decreased crop water requirement and use. The authors recommend extending this type of analysis to other crops as well as to other countries to develop a clearer picture of the changing pattern in crop water use of the major crops grown in the project countries.
The Aquacrop Model Enhancing Crop Water Productivity
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Author : Salman, M., García-Vila, M., Fereres, E., Raes, D., Steduto, P.
language : en
Publisher: Food & Agriculture Org.
Release Date : 2021-11-16
The Aquacrop Model Enhancing Crop Water Productivity written by Salman, M., García-Vila, M., Fereres, E., Raes, D., Steduto, P. and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-16 with Nature categories.
Water resources are linked to the global challenges of food insecurity and poverty, as well as to climate change adaptation and mitigation. In line with the Sustainable Development Goals (SGD), FAO works towards several dimensions of sustainable development, including the promotion of coherent approaches to efficient, productive and sustainable water management, from farm to river basin scales. Accordingly, FAO is enhancing well-informed on-the-ground decision-making processes on water management through projects, knowledge advancement, information-sharing and tools development, such as AquaCrop, the FAO crop-water productivity model. This model assists in assessing the effects of environment (including atmospheric CO2 concentration) and management on crop production through the simulation of yield response to water of herbaceous crops. It is particularly suited to address conditions where water is a key limiting factor in crop production. In 2009, FAO officially launched AquaCrop, being the result of several years of collaborative work among scientists, water and crop specialists and practitioners worldwide, bringing together previously fragmented information on crop yields in response to water use and water deficit. AquaCrop has evolved over the different versions released since its first launch, but it always balances accuracy, simplicity and robustness. This has enabled it to remain faithful to its goal, i.e., to be a dynamic tool accessible to several types of users, mainly practitioner-type end users, in different disciplines and for a wide range of applications. In addition, AquaCrop may be considered a valuable tool by research scientists for analysis and conceptualization.
Water Deficits And Plant Growth Woody Plant Communities
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Author : Theodore Thomas Kozlowski
language : en
Publisher:
Release Date : 1968
Water Deficits And Plant Growth Woody Plant Communities written by Theodore Thomas Kozlowski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Growth (Plants) categories.
Intensive Cropping
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Author : Sohan S Prihar
language : en
Publisher: CRC Press
Release Date : 2000-01-25
Intensive Cropping written by Sohan S Prihar and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-01-25 with Technology & Engineering categories.
Explore new concepts for maximizing crop yields! Intensive Cropping: Efficient Use of Water, Nutrients, and Tillage is a compilation of current information on the interdependence of and synergies among water, nutrients, and energy in regard to increasing crop performance. This book explains the need for intensive cropping and explores the technologies and practices necessary for proper management of water, nutrients, and energy. With Intensive Cropping you will learn how to improve the quantity of the world's most important crops using methods that will minimize harm to the environment. This essential guide is a state-of-the-art account of the concepts and practices concerning the integrated use of water, nutrients, and energy in intensive cropping. Intensive Cropping combines basic and applied aspects of soil-water, nutrients, and energy management to help you optimize your crop yields and maximize the efficiency of intensively farmed regions. In Intensive Cropping, you will explore the need for extreme farming and related concerns and concepts, including: reducing runoff, deep seepage, and evaporation losses supplementing irrigation with surface and ground water understanding the process of water uptake and its effects on root dynamics and water use reducing leaching, erosion, and gasseus losses in your fields using combinations of organic manures, crop residues, chemical fertilizers, and biofertilizers for soil maintenance implementing conventional and emerging tillage systems, such as conservation tillage for improving soil quality examining case studies of contrasting edaphic requirements of rice-wheat systems Intensive Cropping brings you up-to-date on recent advances in the field, supported by relevant experimental observations on environmentally safe and effective ways to increase crop performance. By examining this new research on increasing crop production, you will be able to successfully increase crop yields in various climates and support the growing global demand for such resources.