Author: United States-Israel Binational Agricultural Research and Development FundPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Modeling Plant Response to Deficit Irrigation with Saline Water
Author: United States-Israel Binational Agricultural Research and Development FundPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Water Use in Crop Production
Author: M.b. KirkhamPublisher: CRC Press
ISBN: 9781560220688
Category : Technology & Engineering
Languages : en
Pages : 416
Book Description
Make the best use of available water for your crops! Water Use in Crop Production explores innovative methods that determine how much water certain crops need, in certain climates, in order to ensure adequate plant growth and help eliminate water waste. Through this informative book, agronomists, growers, researchers, and graduate students will find methods and techniques for effective water management that will save money and conserve water. Water Use in Crop Production will enable you enhance crop quality and quantity and save one of the earth's most important resource. Comprehensive and thorough, this essential book combines two vital needs, food and water, and examines what must be done in order to keep up with the ever-growing human population. Explaining conservation techniques used in Argentina, Australia, Israel, Morocco, New Zealand, the Philippines, Spain, and the United States, Water Use in Crop Production will help you achieve this goal as it discusses water management measures including: avoiding excessive deep percolation reducing runoff lessening water evaporation through methods such as reducing the capillary water flow to the surface of the soil determining the rates at which water is demanded and can be supplied in a specific area to create a plan for limiting water loss studying the root structure of plants to calculate how much water they need using deficit irrigation to help plants save water for future use evaluating citrus water use through the Penman-Monteith model Containing charts, tables, and examples of the concepts it discusses, this book is the culmination of the latest studies on water storage. Water Use in Crop Production provides you with reliable strategies and methods that will help you lessen water expenditures and improve the vitality of crops anywhere in the world.
Deficit Irrigation Practices
Author: Food and Agriculture Organization of the United NationsPublisher: Food & Agriculture Org.
ISBN: 9789251047682
Category : Technology & Engineering
Languages : en
Pages : 116
Book Description
In the context of improving water productivity, there is a growing interest in deficit irrigation, an irrigation practice whereby water supply is reduced below maximum levels and mild stress is allowed with minimal effects on yield. Under conditions of scarce water supply and drought, deficit irrigation can lead to greater economic gains than maximizing yields per unit of water for a given crop; farmers are more inclined to use water more efficiently, and more water-efficient cash crop selection helps optimize returns. However, this approach requires precise knowledge of crop response to water as drought tolerance varies considerably by species, cultivar and stage of growth. The studies present the latest research concepts and involve various practices for deficit irrigation. Both annual and perennial crops were exposed to different levels of water stress, either during a particular growth phase, throughout the whole growing season or in a combination of growth stages. The overall finding, based on the synthesis of the different contributions, is that deficit or regulated-deficit irrigation can be beneficial where appropriately applied. Substantial savings of water can be achieved with little impact on the quality and quantity of the harvested yield. However, to be successful, an intimate knowledge of crop behavior is required, as crop response to water stress varies considerably.
Plant Water Use and Growth in Response to Soil Salinity in Irrigated Agriculture
Author: Benjamin Reade RunklePublisher:
ISBN:
Category :
Languages : en
Pages : 298
Book Description
Soil salinity levels are an important determinant of plant evapotranspiration and carbon uptake. In this dissertation I develop, evaluate, and test a model of plant evapotranspiration and carbon uptake in the context of a saline soil environment, and drive the model using leaf physiological parameters determined from field measurements. This modeling work is performed in the context of three research questions: (1) How are leaf gas exchange parameters characterizing photosynthesis in perennial pepperweed best determined for seasonal scale landscape flux analysis? (2) How can the effects of soil salinity on root water uptake be represented in order to account for changes in the diurnal cycle and in the uptake of carbon dioxide by plants? (3) How sensitive are modeled results to changes in model input parameters, and how may these sensitivities limit the predictive abilities of the model? These questions are assessed using data from a relatively wet pasture-peatlands in the San Francisco Bay - Sacrament River Delta region of California, with the dominant land-cover species perennial pepperweed (Lepidium latifolium), a mildly salt-tolerant and invasive herbaceous weed. Presented in this research is a characterization of pepperweed as a highly capable invasive species, able to take advantage of local resources such as light, carbon, water, and nitrogen. Modeling results from each section also demonstrate its ability to photosynthesize under higher temperatures and vapor pressure deficits than standard plant models suggest. Incorporating soil salinity into a whole-plant model increases the ability to describe how different soil and atmospheric parameters influence evapotranspiration and photosynthesis in such an environment. The model's sensitivity analysis reveals two pairs of parameters that may constrain each other, and demonstrates how improved measurements of plant conductance and leaf water potential can constrain other portions of the parameter space.
The Use of Saline Waters for Crop Production
Author: J. D. RhoadesPublisher: Artabras
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 156
Book Description
Water Productivity in Agriculture
Author: J. W. KijnePublisher: CABI
ISBN: 1845933397
Category : Crops and water
Languages : en
Pages : 354
Book Description
First title in a major new seriesAddresses improving water productivity to relieve problems of scarcity and competition to provide for food and environmental securityDraws from scientists having a multitude of disciplines to approach this important problemIn a large number of developing countries, policy makers and researchers are increasingly aware of the conflicting demands on water, and look at agriculture to be more effective in its use of water. Focusing on both irrigated and rain-fed agriculture, this book gives a state of the art review of the limits and opportunities for improving water productivity in crop production. It demonstrates how efficiency of water use can be enhanced to maximize yields. The book represents the first in a new series of volumes resulting from the Comprehensive Assessment of Water Management in Agriculture, a research program conducted by the CGIAR's Future Harvest Centres, the Food and Agriculture Organization of the United Nations and partners worldwide. It will be of significant interest to those working in areas of soil and crop science, water management, irrigation, and development studies.
Simulation Modeling for Saline Water Use in Agriculture
Author: A. K. VermaPublisher: LAP Lambert Academic Publishing
ISBN: 9783659666087
Category :
Languages : en
Pages : 236
Book Description
Saline water adversely affects crop production due to mismanagement of its use for irrigation. The yield of crops irrigated with saline water can be enhanced substantially, if an additional source of good quality water is available for use at critical times during the season. An alternative approach is to use the good quality water in blending mode. In the present book, Salt-Water-Atmosphere-Plant (SWAP) model used for its evaluation and scenario building capability in monsoon climatic conditions having the problems of saline groundwater. The contents of this book include: introduction that highlight use of saline water with different modes of irrigation, review of global and Indian use of saline water under the heads: Direct or blended use of saline water and its effects on soil salinity and crop yield, cyclic mode use of fresh and saline water, use of saline water in aquaculture, use of models for water management, and use of SWAP model for water management. Authors believe that the information contained in this book would facilitate the readers to have a fair view of proper use of saline water and add to the knowledge of conjunctive use of water with the help of SWAP model.
Plant Metabolomics
Author: Kazuki SaitoPublisher: Springer Science & Business Media
ISBN: 3540297820
Category : Science
Languages : en
Pages : 351
Book Description
Metabolomics – which deals with all metabolites of an organism – is a rapidly-emerging sector of post-genome research fields. It plays significant roles in a variety of fields from medicine to agriculture and holds a fundamental position in functional genomics studies and their application in plant biotechnology. This volume comprehensively covers plant metabolomics for the first time. The chapters offer cutting-edge information on analytical technology, bioinformatics and applications. They were all written by leading researchers who have been directly involved in plant metabolomics research throughout the world. Up-to-date information and future developments are described, thereby producing a volume which is a landmark of plant metabolomics research and a beneficial guideline to graduate students and researchers in academia, industry, and technology transfer organizations in all plant science fields.
Response of Crops to Limited Water
Author: Lajpat AhujaPublisher: ASA-CSSA-SSSA
ISBN: 9780891181675
Category : Science
Languages : en
Pages : 456
Book Description
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.
Author: Avraham Meiri