Although the term precision irrigation is now quite widely used, often to mean drip irrigation, there is no commonly accepted definition or conceptualisation of the term, and no cohesive framework to guide research, development or adoption. This paper is reporting on a review of precision irrigation funded by NPSI. This review is considering the role of current irrigation application technologi...

an experiment was carried out in 2008 to investigate the effects of different irrigation regimes, and chickpea cultivars on chickpea production in the khorramabad lorestan. the experiment was split–plot in a randomized complete block design with 3 replications. supplementary irrigation at 8 levels (1-rainfed without irrigation, 2-irrigation after sowing, 3-irrigation at flowering, 4-irrigation ...

Cotton yield under the rainfed farming system in tropical semi-arid regions is significantly decreased by prolonged dry spells. In this context, supplemental irrigation (SI) with treated wastewater emerges as a strategy for sustainability of agricultural production besides contributing to reduction fertilizer costs. The objective research was evaluate productivity, photosynthetic parameters, fi...

Applying models to developed agricultural regions remains a difficult problem because there are no existing modeling codes that represent both the complex physics of hydrology and anthropogenic manipulations water distribution consumption. We apply an integrated groundwater – surface hydrologic river operations model irrigated valley in northwestern Nevada/northern California, United States eva...

Four case studies of the non-market valuation of environmental impacts of agricultural research are reported, drawing on the methods outlined in chapter 1. The International Centre for Agricultural Research in the Dry Areas (ICARDA) estimated the impact of supplemental irrigation in wheat growing areas of Syria on the extent of groundwater depletion and soil salinity accumulation. The estimated...

From a global perspective, drought is well-known manifestation of climate change. The search for alternative sources water also brings uncertainties and risks, example, in relation to wastewater irrigation. We asked ourselves whether how supplemental irrigation with pre-treated would affect the subsoil or groundwater quality. constructed semi-operational models that were loaded controlled manne...