نتایج جستجو برای: rainfed agriculture
تعداد نتایج: 66736 فیلتر نتایج به سال:
The article highlights the issues of importance and features land use personal subsidiary farms by rural population world. According to FAO, almost 75% world’s people living in extreme poverty live areas, their livelihoods food security depend mainly on development agricultural sector economy. Agriculture is largest employer, providing as it employs 40 percent today. It income jobs for poor hou...
Sustainability transitions are inevitable if we to address the multiple crises in and caused by industrial agriculture. Despite intent, there few analyses of policy changes that enable sustainable agriculture; processes particular. This paper two cases transition from Union Government supported green revolution biodiverse local change evident millet based agricultural programmes State Governmen...
Eucalyptus plantations occupy almost 20 million ha worldwide and exceed 3.7 million ha in Brazil alone. Improved genetics and silviculture have led to as much as a three-fold increase in productivity in Eucalyptus plantations in Brazil and the large land area occupied by these highly productive ecosystems raises concern over their effect on local water supplies. As part of the Brazil Potential ...
Rainfed paddy fields have a great potential to be developed in Indonesia, especially Central Java. However, water irrigation management, drought stress, pest and disease infestation low nutrients that affect yield remain the constraints. Unpredictable climate pattern is also limiting factor cultivation of rainfed fields. This narrative review aims identify discuss solutions problems exist incre...
In this paper, we formulate a multiobjective fuzzy random simple recourse programming problem, in which fuzzy random variables coefficients are involved in equality constraints. In the proposed method, equality constraints with fuzzy random variables are defined on the basis of a possibility measure and and a two-stage programming method. For a given permissible possibility level specified by t...
soil conservation is one of the most important regulative functions of natural ecosystems. this function is of high importance in taleghan watershed due to high erosion quantity and sediment accumulation in taleghan dam reservoir. soil loss reduction, sedimentation control and fertility conservation were considered as different aspects of soil conservation. effect of land use and vegetation cov...
modeling of crop growth plays an important role in evaluation of drought impacts on rainfed yield, choosing an optimum sowing date, and managerial decision-makings. aquacrop model is a new crop model that developed by food and agriculture organization (fao), that is a model for simulation of crop yield based on “yield response to water“ with meteorological, crop, soli and management practices d...
In order to study the effects of supplementary irrigation and biofertilizers on grain yield, dry matter remobilization and some physiological traits of barley (Hordeum vulgare L.) under rainfed condition, a factorial experiment was conducted based on randomized complete block design with three replications at in 2017. Factors included irrigation at three levels (no irrigation as rainfed (I1), s...
Irrigated agriculture has undergone rapid developments in China, which greatly increased food production but overexploited water resources as well. Spatial information on irrigated cropland is critical to balance irrigation yield gains against the negative impact resources. However, remote-sensing-based maps areas with short temporal coverage often suffer from undermined accuracy humid and inco...
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...
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