نتایج جستجو برای: under limited irrigation system

تعداد نتایج: 3387673  

انوشیروان فروزنده شهرکی, , محمدرضا خواجه‌پور, ,

Under irrigation and in double-cropping system, a large amount of plant residue remains after harvest that along with the limited time for residue decomposition and complete seedbed preparation, necessitates reduced tillage and special residue management. In the present study, the effects of various seedbed preparation methods on vegetative growth, yield components and seed and oil yields of su...

2008
Reimar Carlesso Mirta Teresinha Petry Celio Trois

Despite of the water use increment for other sectors than agriculture, the water use for irrigation is the main water consumer in global scale. However, irrigation has been pressured by the civil society to improve water use efficiency in agriculture, to prevent water scarcity for human population that grows continuously, mainly in developing areas of the planet. On the other hand, the irrigati...

2005
J. O. Paz C. W. Fraisse G. Hoogenboom L. U. Hatch A. Garcia y Garcia L. C. Guerra O. Uryasev J. W. Jones

Water demand for irrigation in the Southeast is expected to increase in the future. There is a need to combine climate information and risk analysis for peanut irrigation in the southeastern US. This paper describes a peanut irrigation decision support system which was developed to assist growers and to provide information on the levels of profitability of peanut production with and without irr...

ژورنال: علوم آب و خاک 2012
سید پویان احمدپناه, , محمدجواد منعم, ,

There are different automatic downstream control algorithms developed to increase the flexibility of the irrigation system. CARDD control logic is one of the heuristic and distance automatic downstream control systems. In this research, mathematical model of the CARDD control logic coordinated with ICSS hydrodynamic model was developed and the CARDD control logic was tested and evaluated under ...

ژورنال: علوم آب و خاک 2006
انوشیروان فروزنده شهرکی, , محمدرضا خواجه‌پور, ,

Under irrigation and in double-cropping system, a large amount of plant residue remains after harvest that along with the limited time for residue decomposition and complete seedbed preparation, necessitates reduced tillage and special residue management. In the present study, the effects of various seedbed preparation methods on vegetative growth, yield components and seed and oil yields of su...

2002
Rivas Pérez Prada Perán González J.R Kovalenko

Applying automatic control methods to irrigation canals is a way to improve the management of irrigation systems. The dynamic difficulties that involved this hydraulic systems such as non-linearity, varying time delay, and uncontrolled perturbations make the choice of a suitable automatic control method a challenge. To this purpose, this paper presents a methodology for design of decentralized ...

Journal: :Indian Journal of Agricultural Sciences 2023

The present study was carried out at Lovely Professional university, Phagwara, Punjab during 2019 to the performance of okra under irrigation levels and mulching methods drip irrigation. treatment comprised 3 (1.0 ETc, 0.8 ETc 0.6 ETc) 5 mulch (black plastic mulch, silver straw soil no mulch) laid in split plot design replicated thrice. growth yield attributes were significantly influenced by m...

2017
Patricio Grassini Haishun Yang Suat Irmak John Thorburn Charles Burr Kenneth G. Cassman

Appropriate benchmarks for water productivity (WP), defined here as the amount of grain yield produced per unit of water supply, are needed to help identify and diagnose inefficiencies in crop production and water management in irrigated systems. Such analysis is lacking for maize in the Western U.S. Corn Belt where irrigated production represents 58% of total maize output. The objective of thi...

فلاح, سیف اله, مددی, الهام,

Water resources are limited. Thus, one of the ways to prevent the decline of maize yield under water shortage conditions is the use of growth regulators. In this study, the effects of proline (150 mg/L) and salicylic acid (0.5 mmol) on the  yield and water use efficiency of maize were investigated under three irrigation regimes, including complete irrigation (control), 75% of complete irrigatio...

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