The effect of the level of mineral nutrition on the yield and quality of meadow clover
https://doi.org/10.31677/2072-6724-2024-73-4-36-44
Abstract
The research was carried out on sod podzolic medium loamy soil in 2022-2023 in the experimental fields of the Smolensk Research Institute of Agricultural Sciences of the Federal Research Center for Bast Fiber Crops on the basis of the laboratory of agricultural technologies. The purpose of the experiment was to study the effect of the level of mineral nutrition on the yield and quality of meadow clover hay. The object of the study was an early-maturing diploid variety of meadow clover Pochinkovets. The experience was laid down in accordance with the methodology developed by B.A. Dospekhov; mathematical data processing was carried out by the method of dispersion and regression analyses; determination of the amount of organic matter, total and biological nitrogen according to the methodology of A.A. Zavalin and co-authors. According to the results of two years of research, it was found that the largest harvest of meadow clover hay for two mowing was obtained in a more favorable weather conditions in 2022 (20.0 t/ha) relative to 2023 (8.3 t/ha). The maximum yield of hay, regardless of the year of research, was noted in the variant of complex application of the studied fertilizers (N48P48K48). Further dose increases were ineffective. The higher yield in 2022 is due to the fact that taller clover plants were formed this year (up to 10 cm higher compared to 2023). The calculation of the contribution of meadow clover to soil fertility after plowing showed that up to 9.52 t/ha of organic matter entered the soil, up to 181 kg/ha of total nitrogen accumulated with organic matter in the soil, including up to 118 kg/ha of fixed nitrogen.
About the Authors
A. Yu. Gavrilova
Federal Research Center for Bast Fiber Crops
Russian Federation
Russian Federation
PhD in Biological Sciences
Tver
A. M. Konova
Federal Research Center for Bast Fiber Crops
Russian Federation
Russian Federation
PhD in Agricultural Sciences
Tver
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Review
For citations:
Gavrilova A.Yu., Konova A.M. The effect of the level of mineral nutrition on the yield and quality of meadow clover. Bulletin of NSAU (Novosibirsk State Agrarian University). 2024;(4):36-44. (In Russ.) https://doi.org/10.31677/2072-6724-2024-73-4-36-44
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