
The effect of mineral fertilizers on the yield and quality of hay of leguminous grasses
Author(s) -
Д. М. Ситнов,
L. P. Harkevich,
Vasily Adamko
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/901/1/012018
Subject(s) - hay , potash , stalk , hectare , agronomy , yield (engineering) , perennial plant , phosphorus , potassium , fertilizer , mathematics , biology , chemistry , horticulture , agriculture , materials science , ecology , organic chemistry , metallurgy
The article presents the results obtained in the stationary experiment of the Novozybkovskaya SHOS. In the experiment, single-species crops of yellow alfalfa, boneless stalk and grass mixtures based on them were studied against the background of various doses of potash fertilizers (K120-180). The influence of potash fertilizers on the yield and quality of legumes and cereals, their mixed crops and a decrease in the content of 137Cs in hay is considered. It was found that the highest yield of hay of perennial grasses in both the first and second mowing was obtained in the P60K1 8 0 variant. The highest level of hay yield among the studied crops was noted in a grass mixture of yellow alfalfa with a boneless stalk. In terms of the yield of feed units and exchange energy per hectare, the alfalfa + stalk grass mixture exceeded single-species crops. Studies have established that the guaranteed receipt of normatively clean feeds based on yellow alfalfa, boneless stalk and grass mixtures based on them is provided by the use of phosphorus-potassium fertilizer in a dose P60K120.