Simulation of Field Water Use and Crop Yield

Simulation of Field Water Use and Crop Yield PDF Author: R. A. Feddes
Publisher: Halsted Press
ISBN: 9780470264638
Category : Crop yields
Languages : en
Pages : 188

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Book Description
Theory of field water use: basics of water flow i unsaturated soils;water uptake by plants roots;numerical approximation of flow in soil-root systems. Theory of crop production:mathematical description of growts;water and actual production;calculation of potential production. Theprogram:program for field water use, SWATR;program for crop production,CROPR;execution of SWATR; execution of CROPR.

Simulation of Field Water Use and Crop Yield

Simulation of Field Water Use and Crop Yield PDF Author: R. A. Feddes
Publisher: Halsted Press
ISBN: 9780470264638
Category : Crop yields
Languages : en
Pages : 188

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Book Description
Theory of field water use: basics of water flow i unsaturated soils;water uptake by plants roots;numerical approximation of flow in soil-root systems. Theory of crop production:mathematical description of growts;water and actual production;calculation of potential production. Theprogram:program for field water use, SWATR;program for crop production,CROPR;execution of SWATR; execution of CROPR.

Water and Land Development

Water and Land Development PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 122

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Book Description


Response of Crops to Limited Water

Response of Crops to Limited Water PDF Author: Lajpat Ahuja
Publisher: ASA-CSSA-SSSA
ISBN: 9780891181675
Category : Science
Languages : en
Pages : 456

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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.

Crop growth and soil water balance modeling to explore water management options

Crop growth and soil water balance modeling to explore water management options PDF Author: Ines, A. V. M.Droogers, P.Makin, I. W.Das Gupta, A.
Publisher: IWMI
ISBN: 9290904585
Category : Crops
Languages : en
Pages : 35

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Book Description
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.

Modelling and Management of Irrigation System

Modelling and Management of Irrigation System PDF Author: Juan Antonio Rodríguez Díaz
Publisher: MDPI
ISBN: 3039287907
Category : Science
Languages : en
Pages : 204

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Book Description
Irrigation is becoming an activity of precision, where combining information collected from various sources is necessary to optimally manage resources. New management strategies, such as big data techniques, sensors, artificial intelligence, unmanned aerial vehicles (UAV), and new technologies in general, are becoming more relevant every day. As such, modeling techniques, both at the water distribution network and the farm levels, will be essential to gather information from various sources and offer useful recommendations for decision-making processes. In this book, 10 high quality papers were selected that cover a wide range of issues that are relevant to the different aspects related to irrigation management: water source and distribution network, plot irrigation systems, and crop water management.

Simulation of Water Use and Herbage Growth in Arid Regions

Simulation of Water Use and Herbage Growth in Arid Regions PDF Author: H. van Keulen
Publisher:
ISBN:
Category : Arid regions
Languages : en
Pages : 200

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Book Description


Advances in crop modelling for a sustainable agriculture

Advances in crop modelling for a sustainable agriculture PDF Author: Emeritus Professor Ken Boote
Publisher: Burleigh Dodds Science Publishing
ISBN: 1786762420
Category : Technology & Engineering
Languages : en
Pages : 349

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Book Description
Focus on development of next generation of whole farm models to improve decision making and support for farmers Addresses the challenges of combining modular sub-systems into whole farm system models Reviews the performance of specific models such as APSIM and DSSAT

Root Zone Water Quality Model

Root Zone Water Quality Model PDF Author: Lajpat Ahuja
Publisher: Water Resources Publication
ISBN: 9781887201087
Category : Technology & Engineering
Languages : en
Pages : 388

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Book Description
This publication comes with computer software and presents a comprehensive simulation model designed to predict the hydrologic response, including potential for surface and groundwater contamination, of alternative crop-management systems. It simulates crop development and the movement of water, nutrients and pesticides over and through the root zone for a representative unit area of an agricultural field over multiple years. The model allows simulation of a wide spectrum of management practices and scenarios with special features such as the rapid transport of surface-applied chemicals through macropores to deeper depths and the preferential transport of chemicals within the soil matrix via mobile-immobile zones. The transfer of surface-applied chemicals (pesticides in particular) to runoff water is also an important component.

Water Use in Crop Production

Water Use in Crop Production PDF Author: M.b. Kirkham
Publisher: CRC Press
ISBN: 1040284787
Category : Science
Languages : en
Pages : 406

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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.

Simulation of Ecophysiological Processes of Growth in Several Annual Crops

Simulation of Ecophysiological Processes of Growth in Several Annual Crops PDF Author: F. W. T. Penning de Vries
Publisher: Int. Rice Res. Inst.
ISBN: 9022010007
Category : Technology & Engineering
Languages : en
Pages : 280

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Book Description