ПОВЫШЕНИЕ ПРОДУКТИВНОСТИ ПЕРЦА СЛАДКОГО ПРИ НЕКОРНЕВОЙ ПОДКОРМКЕ МИК-РОУДОБРЕНИЕМ «КАЛЬБИТ С»

Abstract

The purpose of research is to study the effect of microfertilizer Kalbit C on the formation of the productivity of sweet pepper variety Podarok Moldovy and to establish the optimal dose of the agrochemical for foliar feeding in the irrigated conditions of the Volga delta. The object of research is the liquid innovative calcium chelate complex Kalbit C – a microfertilizer based on calcium in combination with ammonium lingosulfanate (LSA) containing calcium in a form that is easily accessible for consumption by plants. The choice of agrochemical was based on the importance of calcium in providing pepper plants during the frui¬ting phase. Data are presented on the study of the influence of microfertilizer Kalbit C on the growth and development of sweet pepper plants, the formation of the structure and size of the crop, the biochemical composition of fruits when grown in the Volga delta under drip irrigation. The main biometric indicators of sweet pepper plants with three times foliar feeding were determined and significant differences in plant height, increase in the number of leaves and leaf surface were noted. In the variants with fertilizing, the height of the plants exceeded the control by 7.3–15.8 %; by the number of leaves – by 17.3–22.6; by leaf area – by 16.6–25.3 %. The most optimal was the use of microfertilizer Kalbit C by three times foliar fee¬ding with a consumption of 1050 ml/ha, which increased the yield by 23.2 %; average fetal weight – by 11.2; the number of fruits set – by 10.2 %. Based on the results of the biochemical composition, it was revealed that the fruits of the sweet pepper variety Podarok Moldovy accumulated dry matter on average 8.08–8.24 %, total sugars – 5.48–5.79 %, ascorbic acid – 35.9–39.2 mg%, nitrates – 74.7–83.8 mg/kg (MPC – 200 mg/kg).