The influence of the use of lignohumate on the yield and quality parameters of tomato in vegetable crop rotation

Abstract

The results of the development of regulations for the use of humic growth stimulants on tomatoes in the vegetable crop rotation fertilizer system are represented in this article. The problem of effective assimilation of mineral fertilizers is central in crop production. The combination of humates with mineral fertilizers is a guarantee of their effective assimilation by the plant. The intensity of growth of tomato plants is considered one of the main indicators of the impact of agricultural practices on plants. Treatment of tomato plants with preparations Lignohumate AM and Humate +7 promotes a more intensive increase in growth rate. Recalculation of tomato yield showed that the use of growth stimulants gives a significant increase. The most effective was Lignohumate AM, the increase was 23.9%. The effectiveness of Humat +7 and Argolan Aqua were at the same level and amounted to 21.8 and 20.3%, respectively. The use of humic preparations stimulated the accumulation of dry matter in tomato fruits from 4.6-4.7% in the control to 4.9-5.1% in the experimental variants. The studied preparations had a positive effect on the productivity and quality indicators of tomato. The economic efficiency of the use of growth stimulants in tomato is high. The net profit from the application of Lignohumate AM amounted to 1,038 thousand rubles, which is 198 thousand rubles higher than the control variant. The profitability is higher than when using Humat +7 and Argolan Aqua by 30 and 42%, respectively. Based on the results of the research, it is recommended to use the humic preparation Lignohumate AM on tomatoes to increase productivity and quality indicators in the conditions of the Central part of the North Caucasian region.