نتایج جستجو برای: laser land levelling
تعداد نتایج: 302014 فیلتر نتایج به سال:
determinants of the adoption of land leveling in fars province were investigated through an application of logit model to data collected from a sample of 300 farmers. the results revealed that area under cultivation, farmers' education, earnings beside-farm-income, access to credits, availability of laser applied land leveling instruments and equipments in the region, as well as dam water,...
Based on the survey data, study has made yield and profitability comparisons in contexts of modern agricultural production technologies adopted by cotton growers district Bahawalpur. The extent adoption was gauged through constructing a farming index (MFI). points scored regarding MFI, were classified into five categories. By applying independent samples t-test, means between adopters non-adopt...
The new technologies of surface irrigation require the adoption effective Laser-controlled precision land levelling (PLL) to reach high performance standards, with significant benefits on water saving, salinity control, crop productivity, and farmer’s income. This study aimed assess impacts PLL systems, focusing maize districts Hetao (China) Lower-Mondego (Portugal). experimental at field scale...
The centre of the Turku city by the river of Aurajoki in Finland has been built on clay and silt soil. The level of the ground water has been constantly lowering during the last few centuries due to the postglacial land uplift and extensive water usage leaving the old wooden pilework exposed to decaying. The decaying has led to the subsidence of some historical buildings in the old centre of Tu...
many new technologies have been employed to improve welfare conditions and to provide an optimum utilization of the existing resources in agriculture sector. laser leveling technology is one of the most progressed in maintenance of soil and water resources which itself has an important role in sustainable development. the purpose of this study was to realize the specifications of adopters vs. n...
the best quadratic unbiased estimation (bque) of variance components in the gauss-helmert model is used to combine adjustment of gps/levelling and geoid to determine the individual variance components for each of the three height types. through the research, different reasons for achievement of the negative variance components were discussed and a new modified version of the best quadratic unbi...
excessive cutting depth during leveling of agricultural land increases power needed by the tractor drawbar and will result in undesirable slippage and excessive strain on the tractor engine. the result of sustained excess will be the break-down of the tractor. an auxiliary blade depth controller to prevent overloading during leveling was designed, fabricated and evaluated in this study. the sy...
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