Download or read book Simulation Model of the Water Balance of a Cropped Soil SWATRE written by Instituut voor Cultuurtechniek en Waterhuishouding and published by . This book was released on 1984 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 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 published by IWMI. This book was released on 2001 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Simulation Model of the Water Balance of a Cropped Soil Providing Different Types of Boundary Conditions SWATRE written by C. Belmans and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the present program, SWATRE(-xtended) the following types of conditions at the bottorn of the system can be used: - groundwater level; -flux from the saturated zone (prescribed); the groundwater level is computed; - flux from the saturated zone (calculated as the s~m of the flux towards ditches and the flux of deep percolation); the groundwater level is computed; - flux from the saturated zone (calculated with a flux - groundwater level relationship); the groundwater level is computed; - pressure head of bottorn compartment; - zero flux at the bottorn (of an unsaturated soil profile); i. e, when an impermeable layer is present; - free drainage at the bottorn (unit hydraulic gradient; unsaturated soil profile).
Download or read book Understanding Options for Agricultural Production written by G.Y. Tsuji and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first premise of this book is that farmers need access to options for improving their situation. In agricultural terms, these options might be manage ment alternatives or different crops to grow, that can stabilize or increase household income, that reduce soil degradation and dependence on off-farm inputs, or that exploit local market opportunities. Farmers need a facilitating environment, in which affordable credit is available if needed, in which policies are conducive to judicious management of natural resources, and in which costs and prices of production are stable. Another key ingredient of this facilitating environment is information: an understanding of which options are viable, how these operate at the farm level, and what their impact may be on the things that farmers perceive as being important. The second premise is that systems analysis and simulation have an impor tant role to play in fostering this understanding of options, traditional field experimentation being time-consuming and costly. This book summarizes the activities of the International Benchmark Sites Network for Agrotechnology Transfer (IBSNAT) project, an international initiative funded by the United States Agency for International Development (USAID). IBSNAT was an attempt to demonstrate the effectiveness of understanding options through systems analysis and simulation for the ultimate benefit of farm households in the tropics and subtropics. The idea for the book was first suggested at one of the last IBSNAT group meetings held at the University of Hawaii in 1993.
Download or read book Integration of Remote Sensing with a Soil Water Balance Simulation Model SWATRE written by G. J. A. Nieuwenhuis and published by . This book was released on 1986 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Balance and Crop Production Simulation written by H. C. Aslyng and published by . This book was released on 1982 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Digital Terrain Analysis and Simulation Modeling to Assess Spatial Variabilty of Soil Water Balance and Crop Production written by Bruno Basso and published by . This book was released on 2000 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation Model of the Water Balance of a Cropped Soil written by A.L.M. van Wijk and published by . This book was released on 1984 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimating Productivity of Water at Different Spatial Scales Using Simulation Modeling written by Peter Droogers and published by IWMI. This book was released on 2001 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: A clear understanding of the current water balance is required to explore options for water saving measures. However, measurement of all the terms in the water balance is infeasible in terms of spatial and temporal scale, but hydrological simulation models can fill the gap between measured and required data. For a basin in Western Turkey, simulation modeling at three different scales, field, irrigation scheme and basin scale, was performed to obtain all terms of the water balance. These water balance numbers were used to calculate the Productivity of Water at the three spatial levels distinguished to assess the performance of the systems.
Download or read book Manual on Irrigation Agronomy written by R. D. Misra and published by South Asia Books. This book was released on 1987 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Water Models written by R. DeJong and published by Research Branch, Agriculture Canada. This book was released on 1984 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Methods and Practices in Soil and Water Engineering written by Balram Panigrahi and published by CRC Press. This book was released on 2017-03-16 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the development of useful models and their applications in soil and water engineering. It covers various modeling methods, including groundwater recharge estimation, rainfall-runoff modeling using artificial neural networks, development and application of a water balance model and a HYDRUS-2D model for cropped fields, a multi-model approach for stream flow simulation, multi-criteria analysis for construction of groundwater structures in hard rock terrains, hydrologic modeling of watersheds using remote sensing, and GIS and AGNPS.
Download or read book Simulation Model for Crop Soil Water Depletion written by Yasuro Nakajo and published by . This book was released on 1980 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transferable Simulation Model for Crop Soil Water Depletion written by Richard H. Cuenca and published by . This book was released on 1978 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Summary Simulation Model of the Water Budget of a Cropped Soil budget written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Root Zone Water Quality Model written by Lajpat Ahuja and published by Water Resources Publication. This book was released on 2000 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Irrigation Scheduling and Soil Water Balance Crop Growth Simulation Model for Maize written by P. B. Kutwal and published by . This book was released on 1998 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
