Scientific substantiation of determining the yield load norm of grapevine bushes and its effect on productivity

Abstract

This article investigates issues regarding the formation of vineyards in recent years and the regulation of their yield load, long and short cutting methods for productive shoots, and the determination of mineral fertilizer rates, taking into account irrigation and other agrotechnical measures. In the upper soil layers, the total phosphorus content was 0.21-0.26%, and the mobile phosphorus content was 18.3-27.0 mg. It has been established that the amount of mobile phosphorus in the upper soil layers decreases as it moves into the lower layers. In the upper layer, the potassium content was 2%, and its mobile form was 185.1-219.1 mg. The experiment was conducted in three repetitions for each variant, with 32 grapevines in each repetition.