نتایج جستجو برای: rainfed area
تعداد نتایج: 586388 فیلتر نتایج به سال:
Drought is one of the major constraints limiting agricultural production worldwide and is expected to increase in the future. Limited water availability causes significant effects to plant growth and physiology. Plants have evolved different traits to mitigate the stress imposed by drought. The presence of plant growth-promoting rhizobacteria (PGPR) could play an important role in improving pla...
Soil is a vital source for the cultivation of all types crops. The crop’s depends on soil's physical and chemical properties. optimum plant growth crop yield depend not only total amount nutrients present in soil at particular time but also their availability which turn controlled by properties soil. So, study, comparative analysis was undertaken between various parameters (chemical soil) diffe...
The Pearl millet is the staple and nutritive diet of farm households in developing underdeveloped countries. It grown as dual-purpose; grain forage drylands, marginal lands, unirrigated lands Indian subcontinent. This study analysed cost returns, profitability, resource productivity pearl growing farmers a rainfed ecosystem Thoothukudi District. Primary data were collected selected blocks namel...
to investigate the effects of sowing date (sd) and single irrigation (si) on grain yield of rainfed wheat varieties, this experiment was conducted as split-split plot arranged in a randomized complete block design (rcbd) with three replications from sep.2000 to sep.2004 at the main station of dryland agricultural research institute (dari) in maragheh. the treatments included three sowing dates ...
This article was written with the aim of revealing land use changes in Urmia city using remote sensing of Landsat satellite images for 4 periods of 8 years between 1990 and 2019. For this purpose, two categories of data will be used in this research. The first category includes data obtained from satellite images and the second category includes ground data taken from Urmia ground station, whic...
A total of 10 field experiments were carried out during the 1998 and 1999 growing seasons both in the north (Lleida) and the south (Granada and Jerez) of Spain. In Lleida and Granada, the experiments were conducted under both irrigated and rainfed conditions, while the Jerez trials were carried out only under rainfed conditions. Ten durum wheat genotypes were used in this study. Quality determi...
Agriculture in rainfed dry areas is often challenged by inadequate water and nutrient supplies. Summerfallowing has been used to conserve rainwater and promote the release of nitrogen via the N mineralization of soil organic matter. However, summerfallowing leaves land without any crops planted for one entire growing season, creating lost production opportunity. Additionally, summerfallowing ha...
As planetary boundaries are rapidly being approached, humanity has little room for additional expansion and conventional intensification of agriculture, while a growingworld population further spreads the food gap. Ample evidence exists that improved on-farmwatermanagement can close water-related yield gaps to a considerable degree, but its global significance remains unclear. In this modeling ...
In this study, a dynamically recursive general equilibrium model of Morocco is used to examine alternative trade and domestic policy scenarios involving the implementation of the EU Association Agreement for the period 1998-2012. The model has a detailed treatment of the agricultural and rural economy in Morocco. The results for the trade liberalization scenarios indicate that tariff unificatio...
Spain is one of the countries with the highest greenhouse gas (GHG) emissions within the EU-27. Consequently, mitigation strategies need to be reported and quantified to accomplish the goals and requirements of the Kyoto Protocol. In this study, a first estimation of the carbon (C) mitigation potential of tillage reduction in Mediterranean rainfed Spain is presented. Results from eight studies ...
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