Guidelines For Predicting Crop Water Requirements PDF Download
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Author | : J. Doorenbos |
Publisher | : |
Total Pages | : 202 |
Release | : 1975 |
Genre | : Crops |
ISBN | : |
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Calculation of crop evapotranspiration; Selection of crop coeficient; Calculation of field irrigation requirements.
Author | : Food and Agriculture Organization of the United Nations |
Publisher | : Fao |
Total Pages | : 336 |
Release | : 1998 |
Genre | : Technology & Engineering |
ISBN | : |
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Equations, tables.
Author | : Food and Agriculture Organization of the United Nations |
Publisher | : Food & Agriculture Org. |
Total Pages | : 116 |
Release | : 2002 |
Genre | : Technology & Engineering |
ISBN | : 9789251047682 |
Download Deficit Irrigation Practices Book in PDF, ePub and Kindle
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.
Author | : Richard G. Allen |
Publisher | : |
Total Pages | : |
Release | : 1998 |
Genre | : |
ISBN | : |
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Author | : Van Opstal, J., Droogers, P., Kaune, A., Steduto, P., Perry, C. |
Publisher | : Food & Agriculture Org. |
Total Pages | : 63 |
Release | : 2021-03-18 |
Genre | : Technology & Engineering |
ISBN | : 9251341362 |
Download Guidance on realizing real water savings with crop water productivity interventions Book in PDF, ePub and Kindle
This technical document contains clear and practical guidelines on how to implement real water savings in agriculture through interventions for enhancing crop water productivity. A distinction is made between real water savings and “apparent” water savings. Apparent water savings record reductions in water withdrawals but do not account for changes in water consumption. Real water savings record reductions in water consumption and non-recoverable return flows (runoff or percolation). This guidance document emphasizes the paradox of water savings at field and basin scales, which usually do not translate into increased water availability for other users, as is commonly believed.
Author | : Raveendra Kumar Rai |
Publisher | : Academic Press |
Total Pages | : 678 |
Release | : 2017-04-06 |
Genre | : Science |
ISBN | : 0128118563 |
Download Planning and Evaluation of Irrigation Projects Book in PDF, ePub and Kindle
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
Author | : Megh R. Goyal |
Publisher | : CRC Press |
Total Pages | : 349 |
Release | : 2015-08-13 |
Genre | : Science |
ISBN | : 149872003X |
Download Water and Fertigation Management in Micro Irrigation Book in PDF, ePub and Kindle
This important volume, the ninth in the Research Advances in Sustainable Micro Irrigation book series, provides an invaluable addition to the literature and knowledge on the ever-growing need for sustainable irrigation for agricultural crops in many water-scarce parts of the world. The book specifically covers advances in fertigation for water mana
Author | : R. S. Ayers |
Publisher | : |
Total Pages | : 196 |
Release | : 1985 |
Genre | : Technology & Engineering |
ISBN | : |
Download Water Quality for Agriculture Book in PDF, ePub and Kindle
Richtlijnen voor de werker in het veld om problemen te ondervangen ten aanzien van de waterkwaliteit voor irrigatie-doeleinden. Tenslotte worden praktijkervaringen uit diverse gebieden vermeld
Author | : Saeid Eslamian |
Publisher | : CRC Press |
Total Pages | : 536 |
Release | : 2023-05-31 |
Genre | : Science |
ISBN | : 1000865231 |
Download Handbook of Irrigation Hydrology and Management Book in PDF, ePub and Kindle
Ever-increasing population growth has caused a proportional increased demand for water, and existing water sources are depleting day by day. Moreover, with the impact of climate change, the rates of rainfall in many regions have experienced a higher degree of variability. In many cities, government utilities have been struggling to maintain sufficient water for the residents and other users. The Handbook of Irrigation Hydrology and Management examines and analyzes irrigated ecosystems in which water storage, applications, or drainage volumes are artificially controlled in the landscape and the spatial domain of processes varies from micrometers to tens of kilometers, while the temporal domain spans from seconds to centuries. The continuum science of irrigation hydrology includes the surface, subsurface (unsaturated and groundwater systems), atmospheric, and plant subsystems. Further, the book includes coverage of environmental and economic impacts, water quality issues, water harvesting, satellite measurements for irrigation, and more. Features: Offers water-saving strategies to increase the judicious use of scarce water resources Presents strategies to maximize agricultural yield per unit of water used for different regions Compares irrigation methods to offset changing weather patterns and impacts of climate change
Author | : Daniel Hillel |
Publisher | : Elsevier |
Total Pages | : 417 |
Release | : 2013-10-22 |
Genre | : Technology & Engineering |
ISBN | : 1483215288 |
Download Advances in Irrigation Book in PDF, ePub and Kindle
Advances in Irrigation, Volume 4 covers articles on the development and management of irrigation. The book presents articles on the improved method for distributing water in furrows, termed cablegation; the analysis of drip irrigation design based on the criterion of statistical uniformity; and the spatial distribution of water in sprinkling-irrigation systems. The text also includes articles on the critical evaluation of crop yields as influenced by irrigation uniformity; the concept of evapotranspiration from the scale of a field to the scale of an entire region; as well as the drainage of irrigated lands under sequential water application. Articles on the comparison of several models for the purpose of appraising the effect of irrigation on wheat and barley yields and on the economics of kiwifruit production under irrigation in New Zealand are also encompassed. The book concludes with an article about the modification and testing of a model simulating root and shoot growth as related to soil water dynamics. Agriculturists, agricultural engineers, and hydrologists will find the book invaluable.