Effective elements of onion cultivation at drip irrigation
The influence of plant growth regulator on onion in the case of drip irrigation is investigated in the article. It is proved that the silicon-organic preparation Energia-M stimulated the growth and development of plants, increased the productivity of onions. The most promising on the soil-climatic conditions of the Lower Volga region are hybrids of onion, which have high adaptive capacity and significant potential yield, in combination with the optimal level of nutrition and water consumption. In the field experiment, phenological observations were carried out, water consumption and biological yields were taken into account with the determination of the crop structure, the weight of the commodity fruit and the marketability. The object of research was the onion variety of Volgodonets (as a standard) and hybrids - Octant F1 and Valero F1, with a vegetation period of 105... 110 days were taken for the competitive test. The area of the registered plot was 50.4 m2. The seeding rate was 1 million germinated seeds per hectare. The repetition of the experiment is threefold. The location of the plots is systematic. A 4-line seeding scheme was used. The sowing was carried out by Agricola-1,4 seeder with microprocessor control and quality control. In the production of high sustainable yields, drip irrigation is of great importance in combination with the use of the growth regulator Energia-M in the cultivation of onions, which together stimulated the growth and development of plants. At the same time, on average, the biomass of plants increased by 25.7% in comparison with the control, the average weight of bulbs increased by 28.3%, and the total yield of onion - turnip - 46.6%.