GROWTH AND PRODUCTIVITY OF SUGAR BEET DEPENDING ON CONDITIONS OF MINERAL NUTRITION

Abstract

Under present conditions agriculture is characterized by huge energy consumption, especially because o f soil organic compounds and fertilizer elements. Given dehumification, energy losses in agriculture are almost three times higher than their reclamation from applied fertilizers. Therefore, a regular restoration o f its energy potential is necessary to obtain high productivity and provide a sustainable ecosystem. One such method is a regular application o f fertilizers. Thus, a differentiated approach to the application o f fertilizers is particularly important for balanced plant nutrition in order to obtain their greatest productivity taking into account soil sufficiency o f available forms o f fertilizer elements, biological features of crops and soil and clim atic factors.The complete refusal o f mineral fertilizers, which is sometimes proposed as one possible way to develop agriculture, causes a sharp reduction o f production and increase o f its cost. Therefore, the only true solution is not a refusal o f application, but fundamental improvement o f technology o f fertilizer usage and applying their optimal doses and ratios.It is found that a rational ratio between nitrogen, phosphorus and potassium and other fertilizer elements promotes normal processes o f photosynthesis. Also, it facilitates recycling and migration o f carbohydrates, reduction in content o f "harmful" nitrogen mainly due to intensive synthesis o f protein nitrogen, thereby improving the quality o f sugar beet root crops. Thus, levels-parameters o f sugar beet nutrition and a relative removal o f nutritional chemicals by different hybrids o f this crop must be clarified for conditions o f a particular region and soil fertility.