نتایج جستجو برای: three drip irrigation levels 50
تعداد نتایج: 2440869 فیلتر نتایج به سال:
demand for water resources in different parts of the world, necessitate the use of wastewater. in using wastewater the soil health must be considered. this study was carried out at green space zob ahan in the years 1382 to 1385. in this study, the effects of urban and industrial wastewater irrigation on some chemical properties of soil for three years by using five different irrigation treatmen...
a field experiment was conducted in research farm of isfahan university of technology, isfahan, iran in 2011 . various weeding periods were investigated on growth and yield of potato under drip tape and furrow irrigation systems. a split plot arrangement was used in a randomized complete block design with three replications. irrigation treatments were included in main plots and periods of weed ...
As more subsurface drip irrigation (SDI) systems are being installed throughout the plains of Texas for cotton production, irrigators are concerned about the high cost of installation and the potential benefits of alternative designs. A field study was conducted at the Texas AgriLife Research facilities at Halfway, Texas, to document the agronomic impacts of distribution uniformities on cotton ...
Intercropping systems reduce ineffective evaporation between trees but also intensify interspecific competition and productivity. To improve the water-use efficiency economic benefits of an intercropping system on Loess Plateau, China, where rainfall is limited intense, apple–soybean with micro-irrigation water control was adopted to analyze soil water, root density, efficiency, yield, under di...
To design cost-effective and efficient drip irrigation systems, it is necessary to know the vertical and horizontal advance of the wetting front under the point source; also, the proper management of drip irrigation systems requires an awareness of the soil water distribution. Many factors influence wetting pattern dimensions, including discharge, land slope, irrigation time and soil texture. T...
This study investigated the effect of deficit irrigation at three management allowable depletion levels (MAD) 25%, 50%, and 75% on phytochemicals, ascorbic acid, antioxidant activity, glucose, fructose, and fresh and dry mass in two green leafy lettuce cultivars (Lollo Bionda and Vera) at harvest. Genotype response was observed during deficit irrigation on fresh and dry mass at harvest. Vera re...
The Plant Water Resistance Index (CWSI) is a tool that can be used for the rapid monitoring of plant water status, which is a key requirement for the accurate product irrigation management.The purpose of this study was to calculate the CWSI index for bean hares in the Khorramabad region for two methods of surface irrigation and drip tape irrigation. For this purpose, a design was implemented i...
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