نتایج جستجو برای: irrigation scheduling

تعداد نتایج: 110375  

Journal: :پژوهش آب در کشاورزی 0
اژدر عُنّابی میلانی عضو هیئت علمی مرکز تحقیقات کشاورزی استان آذربایجان شرقی و دانشجوی دکتری دانشگاه تبریز. صدقعلی زمانی کارشناس ارشد مرکز تحقیقات کشاورزی استان آذربایجان شرقی.

proper use of water resources in arid and semi-arid regions is important and vital. this study was conducted to evaluate the effect of irrigation scheduling by various methods on crop yield and water use efficiency (wue) by wheat, and determining suitable irrigation-scheduling method for irrigation of wheat in saeedabad, tabriz. a field experiment was conducted with 10 irrigation treatments (i1...

2016
Zhongping Li Paul-Henry Cournède Jean-Claude Mailhol

Irrigation scheduling is an important issue for crop management, in a general context of limited water resources and increasing concern about agricultural productivity. Methods to optimize crop irrigation should take into account the impact of water stress on plant growth and the water balance in the plant-soil-atmosphere system. In this article, we propose a methodology to solve the irrigation...

Journal: :Remote Sensing 2014
Michel Le Page Jihad Toumi Saïd Khabba Olivier Hagolle Adrien Tavernier Mohamed Hakim Kharrou Salah Er-Raki Mireille Huc Mohamed Kasbani Abdelilah El Moutamanni Mohamed Yousfi Lionel Jarlan

This paper describes the setting and results of a real-time experiment of irrigation scheduling by a time series of optical satellite images under real conditions, which was carried out on durum wheat in the Haouz plain (Marrakech, Morocco), during the 2012/13 agricultural season. For the purpose of this experiment, the irrigation of a reference plot was driven by the farmer according to, mainl...

2015
Nikolaos Malamos Ioannis L. Tsirogiannis Antonis Christofides Stavros Anastasiadis Silvia Vanino

Agriculture plays a key role in the management of water use. Especially in Greece, irrigation is an essential element of agricultural production and agricultural water use has a substantial share in total water use. The presented study illustrates the key features of the IRMA_SYSTEM, a regional, user-friendly computer/mobile-based, open and free modular software for estimating site specific cro...

2000
B. A. George S. A. Shende N. S. Raghuwanshi

An irrigation scheduling model (ISM) consisting of a database management system (DBMS), model base and graphical user interface (GUI) was developed for performing irrigation scheduling under various management options for both single and multiple ®elds. The ISM is based on a daily water balance approach and uses climatological, crop and soil data as input. Depending on the availability of clima...

Journal: :آب و خاک 0
وحیدرضا وردی نژاد سینا بشارت هیراد عبقری حجت احمدی

abstract to optimal use of available water, irrigation scheduling is important to over scarcity of water resources in arid and semi-arid area. in this research to estimate of maximum allowable deficit (or: management allowed depletion) and irrigation scheduling of fodder mays based on canopy-air temperature difference, a field study was conducted in agricultural faculty of karaj. the lower limi...

Addressing deficit irrigation scheduling (DIS) for strategic crop production (especially wheat) under precipitation uncertainty is a priority for irrigation scheduling in drought conditions. This research investigated the precipitation uncertainty by enacting optimistic and pessimistic scenarios for the next 20 years by considering the statistical record of climate in Badjgah area. DIS was cond...

2007
Niels Schütze Gerd H. Schmitz

The great challenge of the agricultural sector is to produce more food and/or more revenue from less water, which can be achieved by optimal irrigation management. A task of primary importance is the problem of intraseasonal irrigation scheduling under limited seasonal water supply. On the intraseasonal level, a limited amount of water is to be distributed over a number of irrigations, taking i...

Journal: :iran agricultural research 2015
mohammad mehdi moghimi alireza sepaskhah ali akbar kamgar-haghighi

addressing deficit irrigation scheduling (dis) for strategic crop production (especially wheat) under precipitation uncertainty is a priority for irrigation scheduling in drought conditions. this research investigated the precipitation uncertainty by enacting optimistic and pessimistic scenarios for the next 20 years by considering the statistical record of climate in badjgah area. dis was cond...

2003
Hovav Talpaz James W. Mjelde

Intraseasonal water allocation to a single crop has been studied extensively. Previous studies have emphasized the need to coordinate irrigation scheduling with several factors including economic and physical constraints, amount of soil moisture available at the time of irrigations, growth stage of the plant, interactive effects from previous and/or subsequent irrigation, and the effect, timing...

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