نتایج جستجو برای: irrigation efficiencies

تعداد نتایج: 62083  

N. Patel T.B.S. Rajput

Indiahas the largest area under onion (Allium cepa) crop but its average productivity (14.21 t ha-1) is considerably lower than the world’s average of 19.4 t ha-1. Besides low productivity, irrigation efficiencies are also very low i.e. 30-35% in India. Managing onion crop with less than adequate irrigation water availability is a challenge in several parts of the country. Options of i) deficit...

A. KAMGAR-HAGHIGHI M. J. BAHRANI M. SHOMEILI SH. ZANDE-PARSA

Limited information is available on water and nitrogen (N) management of sugarcane (Saccharum officinarum L.) in Khuzestan, southwestern Iran, where this crop is currently and extensively grown under heavy irrigation and N fertilization. Therefore, a field experiment was conducted from September 2000 to March 2002 at the Research Department of Karoon Agro-industry in Khuzestan to determine the ...

ژورنال: علوم آب و خاک 2000
موسوی, سیدفرهاد, محلوجی, مهرداد , کریمی, مهدی ,

A study was conducted to determine irrigation scheduling of pinto bean and to evaluate the effect of its planting date. A split-plot with complete randomized block design with four replications was used at Isfahan University of Technology Research Station in Shervedan-Falavarjan, The main plots were three irrigation regimes of T1 to T3 (irrigation after 50±3, 70±3 and 90±3 mm evaporation from c...

Journal: :Revista Ambiente & Água 2022

This research evaluated the wastewater treatment system of Punta Carnero sector, in relation to pollutant efficiency load removal, final effluent quality and impact on ecosystem, finally determine if discharge can be reused for agricultural irrigation. The was based affluent characterization system, carried out three phases: i) Taking simple samples, analyzed an accredited water laboratory anal...

موسوی, سیدفرهاد, محلوجی, مهرداد , کریمی, مهدی ,

A study was conducted to determine irrigation scheduling of pinto bean and to evaluate the effect of its planting date. A split-plot with complete randomized block design with four replications was used at Isfahan University of Technology Research Station in Shervedan-Falavarjan, The main plots were three irrigation regimes of T1 to T3 (irrigation after 50±3, 70±3 and 90±3 mm evaporation from c...

Journal: :International journal of hydrology 2021

Investigating the effects of optimized fertilizer and irrigation levels on water use efficiency productivity wheat crop at small farms is great importance for precise sustainable agriculture in Pakistan's irrigated areas. However, traditional farmer practices production are inefficient unsustainable. This study aimed to investigate deficit nitrophos bread grain yield, yield parameters, nutrient...

Journal: :Tree physiology 2008
Timothy J Albaugh H Lee Allen Thomas R Fox

We quantified nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) content, use (nutrient amount for one growth year), retranslocation (nutrients recycled before foliage senescence), uptake (use minus retranslocation), volume production per unit of uptake and fertilizer-uptake efficiency (percent applied taken up) in a 2 x 2 (nutrient and water) factorial experiment repl...

2003
V. M. Chowdary

In large canal irrigation project areas, integrated management of surface and groundwater resources can improve water use efficiencies and agricultural productivity and also control water logging. Such integrated management requires an estimation of spatial distribution of recharge and ground water flow in the underlying aquifer. Recharge occurs both as percolation losses from fields and seepag...

موسوی, سیدفرهاد, یزدانی, محمدرضا ,

Water requirements of paddy fields in the Gilan Province are provided for by a large irrigation network including Sepidrud reservoir dam, Tarik diversion dam, Fumanat network, Sangar diversion dam, and Sangar right and left canals. Because of the deposition of sediments in the Sepidrud reservoir, its capacity has been reduced profoundly. To overcome this problem, sediments are flushed in the se...

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