FEATURES OF GROWING SWITCHGRASS DEPENDING ON THE ELEMENTS OF TECHNOLOGY
Keywords:
switchgrass, mineral fertilizers, plant height, stem diameter, number of internodes, pre-harvest density, yield.Abstract
In Ukraine, the development of production and use of biofuels is constrained and lags behind the domestic needs of the country due to insufficient raw materials. Therefore, from this point of view, domestic science faces an urgent task to investigate the problem and develop elements of technology for growing energy plants. Switchgrass has a significant potential among energy crops, which is able to form a high yield over a long cycle of cultivation.
According to the results of research, it was found that the best conditions for growth, development and crop formation were developed with the application of nitrogen fertilizers in the amount of 60 kg / ha of active substance. Using this dose of fertilizers, the largest increase in height was observed - 170.6 cm, stem diameter - 4.1 mm and the number of internodes 5.3 pcs./plant. When applying nitrogen fertilizers at the dose of 60 kg / ha of active substance, the maximum weight of dry plant was 3.21 g with a pre-harvest density of 450 pcs / m2 and yield of 14.40 t / ha.
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