Corn in the forest-steppe zone of the Russian Federation, which includes the Republic of Tatarstan, is the main fodder crop, the yield of which directly depends on the moisture content of a particular growing season and the nutritional background. The above-mentioned limiting factors for increasing the productivity of fodder corn can be easily controlled by the agrotechnical methods described in this paper. The results of the research showed the high efficiency of irrigation and the introduction of calculated fertilizer rates in combination with foliar feeding of the Isagri Force plant 6 l / ha in the phase of 4-6 pairs of true corn leaves. At the same time, the stem density increased from 51.1 thousand pcs/ha in the control to 59.5 thousand pcs/ha in the NPK variant by 60 t/ha + Isagri Force 6l/ha. Moreover, in the variant of applying mineral fertilizers with the expectation of obtaining 60 t/ha of green mass, the yield of green mass of the Nur hybrid was 61.4 t/ha, and the VNII hybrids 64.1 t/ha, which is higher than the control by 66.8 and 67.8% respectively. Additional foliar top dressing Izagri Force with the content of easily digestible amino acids and a complex of chelate forms of microfertilizers providing additional production from each hectare of 1.3 green mass of the studied Nur and Ross 140 corn hybrids.
Corn is a valuable food and technical crop and almost all its parts are used in different branches of industry which cannot do without corn grains and pulp and paper mills use its leaves and stems. In addition, the crop has important agronomic importance in controlling field weeds. It is one of the most important cereal crops in world agriculture. As a high-yielding crop, it plays an important role in fodder production. A powerful reserve for increasing corn yields is mineral fertilizers, as well as the widespread introduction of new zoned varieties and hybrids of corn into production. This article presents the influence of organic and mineral fertilizers with macro-, micro-, complex fertilizers and growth regulators on corn yield and production. Sufficient nutrients are necessary to obtain high yields. Various growth-promoting substances are also used in modern agricultural practice. They improve seed germination and germination energy, accelerate plant growth, plant development and increase yield. Using special mixtures of fertilizers for corn concentrates all the necessary complexes of nutrients. The necessary complex of nutrients is applied in one step, which reduces the unevenness of fertilization. Spraying of combined fertilizers containing microelements and growth regulators before sowing increases plant resistance to adverse weather conditions. The use of combined compositions of NPK fertilizers allows the development of resource-saving systems and reduces the cost of fertilizers.
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