Agroenergetic assessment of the efficiency of cultivation of one-year fodder crops for senage in the north

Issue № 5, 2020, article № 6, pages 63-68

Language: Russian

Original language title: АГРОЭНЕРГЕТИЧЕСКАЯ ОЦЕНКА ЭФФЕКТИВНОСТИ ВОЗДЕЛЫВАНИЯ ОДНОЛЕТНИХ КОРМОВЫХ КУЛЬТУР НА СЕНАЖ В УСЛОВИЯХ СЕВЕРА

Keywords: OATS, PEAS, VETCH, BARLEY, ANNUAL CROPS, YIELD, HAYLAGE, GREEN MASS, AGRO-ENERGY COEFFICIENT

Abstract: The results of research on agro-energy assessment of the efficiency of cultivation of annual forage crops for haylage are presented. Experimental work on the cultivation of forage crops was carried out in 2013-2014 at the research and production hospital of the laboratory of feed production of YANISKH. The experimental site is located on the second above-floodplain terrace of the Lena river valley. The soil of the experimental site is permafrost meadow-Chernozem loam; the reaction of the medium is slightly alkaline (salt pH 7.4); humus content-2.63‰; total nitrogen-2.8‰; mobile phosphorus (P2O5)-18.2 mg/100 g for Egner – rim; exchange potassium (K2O) - 29.3 mg/100 g of soil for oil; granulometric composition-light loam. The objects of research were the following varieties of annual crops-Pokrovsky oats, Capital peas, spring vetch Priobskaya 25, Tammy barley. The repeatability in the experiment is 4-fold, and the placement of plots is randomized. The area of plots is 72 m2, the account area is 50 m2. The research was carried out using generally accepted methods of field experiments. Analysis of the agro-energy assessment of cultivation of annual crops for the production of haylage showed that for all three terms of sowing, the most effective mixtures are peas + oats and peas + oats + barley. A high energy coefficient for all three terms of sowing is provided by a mixture of peas + oats (from 3.76 to 4.30) and peas + oats + barley (from 3.80 to 4.28). It was found that the most effective agro-energy assessment for haylage is pea mixtures (0.8 million PCs / ha) + oats (2.5 million PCs / ha) and peas (0.8 million PCs / ha) + oats (1.3 million PCs / ha) + barley (1.2 million PCs/ha) of the third sowing period. It is also effective to cultivate a mixture of vetch (1.2 million PCs / ha) + oats (2.5 million PCs / ha) and oats in pure form (4 million PCs/ha) of the third sowing period.

Authors: Pavlova Sakhaiana Afanasevna, Pestereva Elena Semenovna, Zakharova Galina Egorovna