Comparative evaluation of foliar treatments of watermelon plants with water-soluble fertilizers and growth regulators

Abstract

The effectiveness of the use of new foliar fertilizers and growth regulators for vegetative plants of watermelon in dry-steppe conditions of the Volgograd region has been studied. It was found that the direct supply of nutrients to plants contributed to the progression of growth processes. The maximum plant growth was noted in the variant Vigor Forte + Agrovin Profi + NPK complex, where the excess of the number of lashes to the control was 115%, the length of lashes - 346%. Good development of plants increases their resistance to adverse weather conditions and increases the ability of plants to bear fruit. The maximum effect in increasing the yield was achieved when using Vigor Forte growth regulator in combination with foliar fertilizers - 20.4 t/ha, which is 1.7 times more than the basic technology. It has been determined that the use of water-soluble fertilizers and growth regulators in the cultivation of watermelon makes it possible to obtain high quality products with an amount of nitrates less than the maximum permissible concentration (MPC) - 60 mg/kg. The increase in economic indicators with the use of new foliar fertilizers and growth regulators relative to standard technology ranged from 16,8 to 72,3%.