Combination of effective use of irrigation and mineral nutritionfor growing table potatoes

Abstract

The relevance of the study is conditioned by a decrease in the moisture supply of agricultural crops during the growing season due to climate changes and a tendency to reduce the moisture supply of agricultural crops. At the same time, the main approach to solving this problem is to combine fertigation with irrigation. The purpose of the study is to establish the dependence of the productivity of potatoes on the intensive farming system when using irrigation. Using the example of an agricultural enterprise typical for the region, the volume of nitrogen fertilisers applied to fully provide the crop during the growing season is estimated. To obtain scientific results, an analytical search was carried out and a field, laboratory, and statistical methods of processing the results were applied. As a result of the research, the distribution of nitrogen in comparison with losses in combination with organogenesis phases was optimised. To ensure communication between the plant, soil, and fertilisers, CAM 32 was used in doses of N30N15, which affected the structural indicators of the potato crop. When applying CAM 32 (N30) + H2O, the weight of tubers was obtained at the level of 4.65 kg/m2, and the yield increase was 0.5 t/ha. When using nitrogen with MgSO4, the yield increased to 1.5 t/ha compared to the control. In the process of transformation, it was found that the use of nitrogen nutrition CAM 32 (N15) + MgSO4 + Ca(NO3)2 + H2O contributed to the most intensive development of tuber mass up to 4.85 kg/m2 compared to the control – 4.6 kg/m2. In the final product, an increase in the fraction was observed and amounted to more than 55 g/plant. The analysis of yield indicates a positive trend in the use of nitrogen nutrition, where the increase was 2.5 t/ha. The studied data can be applied by agricultural producers in the Forest-Steppe and Polissia zones to obtain high yield gains when growing potatoes