Corn in postcut crops

In agrotechnologies postcut crops of intermediate cultures are placed after harvesting annual grasses for green mass, and stubble crops after harvesting early grain crops. Annual herbs at the April sowing dates reach mowing maturity and are harvested for green mass in the third decade of June – the first decade of July. However, after harvesting the main crop of the crop rotation, there are still about 70–90 days left until the end of the growing season, which is quite enough to obtain a full-fledged harvest in the hay crops, and thereby increase the index of arable land use [1; 6]. In this regard in 2020–2022 in the foothill zone of the Kabardino-Balkarian Republic (the Baksansky district), the scientific research was carried out on the irrigated Ciscaucasian chernozems (according to B.A. Dospekhov “Methodology of field experience”) in order to study the elements of improving the technology of growing corn in hay crops, providing a reduction in energy costs and optimization of the main parameters of soil fertility. Recently, agricultural production has been operating in the conditions of a resource deficit and an increasingly complex structure of economic relations and an ever-increasing problem of soil and water conservation. The dominance of economic mechanisms fundamentally changes many generally accepted ideas and approaches in the field of agricultural land use. The overall objective is to maximize crop production per unit of input. As a result of the research, it has been found that the cultivation of corn for grain by cutting, after winter rapeseed by chisel processing to a depth of 28–30 cm and the application of fertilizers at a dose of N₁₂₀P₉₀, contributes to the stabilization of the agrophysical properties of the soil and the optimization of the energy balance

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2. Boziev A.L. [et al.] Stubble and postcut crops of corn in the conditions of the foothill zone of the Kabardino-Balkarian Republic. Proceedings of the International Scientific Conference of Young Scientists and Specialists dedicated to the 135th anniversary of the birth of A.N. Kostyakov. Moscow; 2022: 249–254.

3. Dospekhov B.A. Field experience methodology (with the basics of statistical processing of research results). 5th ed., suppl. and rev. Moscow: Agropromizdat; 1985: 351 р. (In Russ.)

4. Kravtsov A.M. [et al.] The productivity of corn for grain depending on the fertility of leached chernozem and the rate of fertilizer. Proceedings of the Kuban State Agrarian University. 2020; 85: 88–97. (In Russ.)

5. Mamsirov N.I. [et al.] Farming systems of Kabardino-Balkaria: Status and development prospects. Bulletin of the Adygh State University. Series, 4: Natural-mathematical and technical sciences. 2018; 4(231): 124–128. (In Russ.)

6. Mamsirov N.I., Malich I.Yu., Makarov A.A. Biologized fodder crop rotation on drained chernozems. Ecology: yesterday, today, tomorrow: materials of the All-Russian Scientific and Practical Conference. Makhachkala; 2019: 293–300. (In Russ.)

7. Mamsirov N.I. [et al.] Fundamentals of agronomy: a textbook. Maikop: MSTU; 2018. (In Russ.)

8. Khanieva I.M. [et al.] Methods and techniques for improving soil fertility. Ural Scientific Bulletin. 2017; 10(3): 042-044. (In Russ.)

9. Erzhibov A.Kh., Kishev A.Yu., Berbekov K.Z. Influence of agricultural practices on the energy efficiency of crop cultivation in various agro-microlandscape conditions // Science, education and business: a new look or strategy of integration interaction: a collection of scientific papers based on the materials of the II International scientific and practical conference dedicated to the memory of the first President of the Kabardino-Balkarian Republic V.M. Kokov. Nalchik; 2022: 110–114. (In Russ.)

10. Erzhibov A.Kh. [et al.] Reduction of energy consumption in the cultivation of corn in small peasant farms. Science, education and business: a new look or strategy of integration interaction: a collection of scientific papers based on the materials of the II International scientific and practical conference dedicated to the memory of the first President of the Kabardino-Balkarian Republic V.M. Kokov. Nalchik; 2022; 114–117. (In Russ.)