Abstract
The global impact of climate change, with the potential to affect agriculture through changes in temperature, rainwater distribution and amount, leads to the need to develop integrated technologies that increase rain use efficiency and support soil and environmental quality, ensuring higher agricultural outputs with lower costs. Soil modeling in interrupted furrows is a very efficient rainwater harvesting system, but has not yet been scientifically assessed for the conditions in Southern Romania as the other soil working systems have been. For this purpose, a soil modeling device consisting of a frame with triangle for coupling to the tractor, wheels for adjusting and limiting the working depth, soil loosening knives, ridge ploughs and furrow compartmenting equipment was compared with the conventional technology for sunflower culture in two localities in Southern Romania: Crânguri in Giurgiu County and Mărculeşti in Calarasi County. The device for soil modeling in interrupted furrows for weeding crops provides a viable option that has positive effects on soil properties and ensures increased crop yields compared to conventional works as well as the opportunity to increase the efficiency of water recovery in agriculture by harvesting rainwater.
Highlights
In the Southern part of Romania, characterized by a temperate continental climate, there is a need to preserve “in-situ” soil moisture due to insufficient rainfall for agriculture
The large infiltration surface created by the depressions and the depth of the water in them lead to higher infiltration rates and to a decrease in losses generated by surface leakage and evaporation [7,12]
The device for soil modeling in interrupted furrows for weeding crops, simultaneously on 5 intervals, DMBC-5 (Fig.1) is designed for soil modeling in interrupted furrows for weeding crops sown at 70-80 cm, for the accumulation of rainwater and the achievement of a uniform water distribution at the soil surface, on land with a slope of up to 6%, on soils ploughed to a minimum of 250 mm, with light, medium or heavy texture, at a humidity at which the soil does not stick to the active part
Summary
In the Southern part of Romania, characterized by a temperate continental climate, there is a need to preserve “in-situ” soil moisture due to insufficient rainfall for agriculture. In environments with low and rapid rainfall, as well as with an increase in droughts, interrupted furrows are used to collect precipitation water [5,9,10,11] Through these harvesting works, rainwater is collected in mini-basins, allowing more time for infiltration, which reduces leakage and the potential for erosion and transport of soil particles [6]. Rainwater is collected in mini-basins, allowing more time for infiltration, which reduces leakage and the potential for erosion and transport of soil particles [6] In this method, the large infiltration surface created by the depressions and the depth of the water in them lead to higher infiltration rates and to a decrease in losses generated by surface leakage and evaporation [7,12]. The technology includes a soil modeling device to ensure soil loosening and the creation of interrupted furrows on the soil surface for “in situ” harvesting of rainwater
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