Yield of sunflower on the erosion and dangerous slope depending on the method of main soil treatment and fertilizer

The article presents the results of an average of two years of studies of the formation of the yield of sunflower on the erosion-dangerous slope in crop rotations A and B, depending on the method of primary tillage and fertilizer rates. It was revealed that a higher yield in the A + B crop rotation - 17.12 centners / ha was obtained with the chisel method of tillage and the introduction of the second level of fertilizer application with a norm of 8 tons of manure + N84Р30К48 (162 kg ai per 1 ha of crop rotation area). However, a higher yield increase - 6.37 centners per hectare and a payback period of 1 kg of fertilizers; yield increase of 3.93 kg / kg was obtained with a combined method of basic tillage and the introduction of the second level of fertilizers.