نتایج جستجو برای: irrigated farmlands

تعداد نتایج: 9911  

Journal: :European journal of sustainable development research 2022

This study analyses determinants of sustainable use farmlands in Debre Mawi and Densa Bahta rural kebeles Amhara region northwestern Ethiopia. Within the framework qualitative research methodology, case approach adopted study. The required primary data were gathered through focus group discussions in-depth interviews. A generic analytical that combines livelihood (SLF) farming system model was ...

Journal: :The American journal of tropical medicine and hygiene 2005
Maria A Diuk-Wasser Mahamoudou B Toure Guimogo Dolo Magaran Bagayoko Nafoman Sogoba Sekou F Traore Nicholas Manoukis Charles E Taylor

Anophelism without malaria has long been recognized. In large irrigation projects, such as that around Niono, Mali, villages in irrigated areas sometimes have more anopheline vectors of malaria than adjacent nonirrigated villages, but overall malaria prevalence is substantially less. One hypothesized explanation for this is high anopheline densities lead to smaller adults, who do not live so lo...

Journal: :Carbon Balance and Management 2021

Abstract Background Under the escalating threat to sustainable development from global increase in carbon dioxide concentrations, variations flux farmland ecosystem and their influencing factors have attracted attention. Over past few decades, with of eddy covariance technology, fluxes farmlands been determined many countries. However, studies are very limited for drip irrigation maize arid reg...

2010
HANS SCHREIER SANDRA BROWN PRAVAKAR B. SHAH Hans Schreier

Nutrient dynamics in the Bela watershed, Nepal were examined using a range of GIS budget modelling and field analysis techniques. The fertility status analysis showed that soil acidity, phosphorus availability, and lack of base cations were the key soil fertility issues. Nutrient budget calculations revealed significant annual phosphorus deficits for maize rota­ tions, but only minor deficits i...

2007

1. Agriculture is the predominant user (75-80%) of the available freshwater resource in many parts of the world. At present most of the water used to grow crops is derived from rainfed soil moisture, with non-irrigated agriculture accounting for some 60% of production in developing countries. Although irrigation provides only 10% of agricultural water use and covers just around 20% of the cropl...

2007
Gabriel B. Senay Michael Budde James P. Verdin Assefa M. Melesse

Accurate crop performance monitoring and production estimation are critical for timely assessment of the food balance of several countries in the world. Since 2001, the Famine Early Warning Systems Network (FEWS NET) has been monitoring crop performance and relative production using satellite-derived data and simulation models in Africa, Central America, and Afghanistan where ground-based monit...

Journal: :OR Insight 2011
Narges Banaeian Morteza Zangeneh

Wheat is widely grown in Iran as a staple food; therefore, the government there encourages farmers to produce wheat (a common agricultural enterprise) by increasing farm productivity and efficiency. The study compares the efficiency of wheat production for dryland (low input) and irrigated (high input) systems across Iranian provinces by using Data Envelopment Analysis (DEA). The average techni...

2010
Harold P. Collins

Conventional field cropping systems have been criticized as being unsustainable because they contribute to on-farm and off-farm environmental degradation, and are often economically uncertain. Methods to increase environmental and economic sustainability are needed. There is a critical need to develop management technologies to maximize yield and crop quality yet improve environmental impacts o...

رستگار, فاطمه, صبوحی, محمود,

In the present study, grey fuzzy programming model was used for determination of cropping pattern in central part of Quchan city. The needed data was collected from Almachigh Research Center for the year 2008. Result showed that, current cultivated area of irrigated wheat, irrigated barley and alfalfa is more than and rain-fed barley is less than the represented interval upper and lower limits,...

Journal: :بوم شناسی کشاورزی 0
فرزاد حسین پناهی فرزاد مندنی فرزین پورامیر مهدی نصیری محلاتی

cultivated area, yield and production trend of wheat (triticum aestivum l.), barley (hordeum vulgare l.), potato (solanum tuberosum l.), alfalfa (medicago sativa l.) and chickpea (cicer arietinum l.) as the main crops of kurdistan province were studied during 1983-2006 using time series analysis and the situation of future were predicted for 2006-2021 period. the results showed that the cultiva...

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