Scheduling model for crop-based irrigation operations.

Scheduling model for crop-based irrigation operations. PDF Author:
Publisher: IWMI
ISBN:
Category :
Languages : en
Pages : 80

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Book Description

Scheduling model for crop-based irrigation operations.

Scheduling model for crop-based irrigation operations. PDF Author:
Publisher: IWMI
ISBN:
Category :
Languages : en
Pages : 80

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Book Description


Final report on crop-based irrigation operations in the North West Frontier Province of Pakisatn. Vol.I: Synthesis of findings and recommendataions.

Final report on crop-based irrigation operations in the North West Frontier Province of Pakisatn. Vol.I: Synthesis of findings and recommendataions. PDF Author:
Publisher: IWMI
ISBN:
Category :
Languages : en
Pages : 57

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Book Description


Crop-based irrigation operations in the NWFP: Progress report no.2, Kharif 92 on the Technical Assistance Study, T.A. No.1481-PAK

Crop-based irrigation operations in the NWFP: Progress report no.2, Kharif 92 on the Technical Assistance Study, T.A. No.1481-PAK PDF Author:
Publisher: IWMI
ISBN:
Category :
Languages : en
Pages : 81

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Book Description


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.

Guidelines for Predicting Crop Water Requirements

Guidelines for Predicting Crop Water Requirements PDF Author: J. Doorenbos
Publisher:
ISBN:
Category : Crops
Languages : en
Pages : 202

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Book Description
Calculation of crop evapotranspiration; Selection of crop coeficient; Calculation of field irrigation requirements.

Planning and Evaluation of Irrigation Projects

Planning and Evaluation of Irrigation Projects PDF Author: Raveendra Kumar Rai
Publisher: Academic Press
ISBN: 0128118563
Category : Technology & Engineering
Languages : en
Pages : 680

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Book Description
Planning and Evaluation of Irrigation Projects: Methods and Implementation presents the considerations, options and factors necessary for effective implementation of irrigation strategies, going further to provide methods for evaluating the efficiency of systems-in-place for remedial correction as needed. As the first book to take this lifecycle approach to agricultural irrigation, it includes real-world examples not only on natural resource availability concerns, but also on financial impacts and measurements. With 21 chapters divided into two sections, this book is a valuable resource for agricultural and hydrology engineers, conservation scientists and anyone seeking to implement and maintain irrigation systems. - Uses real-world examples to present practical insights - Incorporates both planning and evaluation for full-scope understanding and application - Illustrates both potential benefits and limitations of irrigation solutions - Provides potential means to increase crop productivity that can result in improved farm income

Final report on crop-based irrigation operations in the North West Frontier Province of Pakisatn. Vol.II: Research approach and interpretation

Final report on crop-based irrigation operations in the North West Frontier Province of Pakisatn. Vol.II: Research approach and interpretation PDF Author:
Publisher: IWMI
ISBN:
Category :
Languages : en
Pages : 127

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Book Description


Trickle Irrigation for Crop Production

Trickle Irrigation for Crop Production PDF Author: F.S. Nakayama
Publisher: Elsevier
ISBN: 0444600965
Category : Technology & Engineering
Languages : en
Pages : 394

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Book Description
An entirely new agricultural technology, trickle or drip irrigation, began its development in the early 1960's. Initial progress was sporadic even though the advantages in water management with trickle systems were recognized. Operators were reluctant to use the system because of its high initial cost and questions regarding its reliability. Once the main problems were isolated and solutions developed to make the system reliable, rapid acceptance by the growers resulted. Today, trickle irrigation is being used on crops that were earlier considered to be uneconomical. This multi-purpose handbook brings together current knowledge from various engineering and scientific disciplines (crop, hydraulic, irrigation and soil sciences) needed for understanding the trickle irrigation system for crop production. The two dozen contributors are experts on the various subjects, which range from the basic to the more practical aspects of trickle irrigation. Major topics include design, operation and management - with individual chapters covering historical development, emitter construction and clogging, system design, water and salt distribution, automation, water treatment, irrigation scheduling, maintenance, fertilization and salinity.The book greatly expands the scope of research papers, reviews, extension bulletins, and updates earlier text with new information on trickle systems. A multi-disciplinary approach has been taken on a multi-faceted subject. The material contained in the book is the most comprehensive yet developed on the topic. Illustrative sample problems and solutions provide field operators and extension personnel with information needed to install and maintain trickle systems. As it is up-to-date, it is useful as a teaching and reference source for students, manufacturers and irrigation system operators as well as irrigation and crop specialists, and consultants.

Role of Sediment Transport in Operation and Maintenance of Supply and Demand Based Irrigation Canals: Application to Machai Maira Branch Canals

Role of Sediment Transport in Operation and Maintenance of Supply and Demand Based Irrigation Canals: Application to Machai Maira Branch Canals PDF Author: Sarfraz Munir
Publisher: CRC Press
ISBN: 0415669472
Category : Technology & Engineering
Languages : en
Pages : 287

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Book Description
This work describes the role of sediment transport in the operation and maintenance of demand-based downstream controlled irrigation canals. Sediment deposition in these irrigation canals severely affects the operation of the automatic flow control system. The book also discusses sediment transport modelling in irrigation canals. A simplified 1-D mathematical model SETRIC (SEdiment TRansport in Irrigation Canals) has been improved with the inclusion of downstream control component for the downstream controlled irrigation canals. Based on field measurements and sediment transport modelling, a number of approaches have been proposed for sediment management in such irrigation canals by improvement in their design and operation. This book will be of interest to Irrigation Engineers and Managers, Hydraulic Engineers, Water Resources Engineers and Managers, Civil Engineers, and Agricultural Engineers.

Maintenance and Operational Activities in the Command Areas of Shahpur and Mirwal Small Dams

Maintenance and Operational Activities in the Command Areas of Shahpur and Mirwal Small Dams PDF Author:
Publisher: IWMI
ISBN:
Category :
Languages : en
Pages : 99

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Book Description