AGROPHYSICAL PROPERTIES OF LEACHED CHERNOZEM AND YIELD OF AGRICULTURAL CROPS DEPENDING ON THE USAGE OF BIRD DUNG AND LIMING

• Main Authors: N.P. Chekaev, A.V. Lesnov
• Format: Article
• Language: English
• Published: Editorial and publishing department of FSBEE HE Penza SAU 2020-03-01
• Series: Volga Region Farmland
• Subjects: chicken dung; water stability of soil aggregates; the density of soil consistency; yield
• Online Access: https://niva-volga.ru/file/vipuski/2020_1_54/en/2020_1_5_en_31-36.pdf

The article shows the effect of introducing different doses of chicken dung and liming on the ag-rophysical properties of leached chernozem, the yield of spring wheat and peas. As a result of stud-ies in the experimental field of the Federal State Budgetary Educational Institution of Higher Educa-tion Penza State Agrarian University (Penza region, Mokshan district), it was revealed that when vari-ous doses of chicken dung and liming are applied in leached chernozem, the lost water-resistant structure is restored, the equilibrium density is reduced, accumulation and moisture spending are ef-fective during vegetation. Adding doses of the bird dung from 2.0 to 10.0 T/ha increased the yield of grain of the first crop (spring wheat) by 22.6-61.1 %, and the use of limestone flour as a chemical ameliorant together with the use of different doses of chicken dung and in pure form by 10.5-77.7 %. The total productivity of cultivated crops for three years of research, depending on the doses of the bird dung, increased by 15.4-42.7% on a background without liming and by 23.8-52.2% on a lime background, which gave an additional 1.49 to 3.30 t/ha of grain units.