SILAGE CROP CULTIVATION ON MEADOW-CHERNOZEM SOILS IN EASTERN TRANSBAIKALIA
Abstract
Studies were conducted in Transbaikal Territory in 1996–2005. There was studied the effect of fertilizers on the contents of major soil nutrition elements in meadow-chernozem soils in a fodder crop rotation: fallow – turnip – maize/sunflower mixture – spring rapeseed – peas/oats mixture. There were found impacts of different variants of fertilization (those were the control without fertilizers; N30; N30P15; N60; N60P30, and 40 tonnes of manure + N60) on productivity, nutritive value and agro-economic energy efficiency of maize/sunflower mixture grown on meadow-chernozem, deep-frozen soils. As the contents of major soil nutrition elements increased, yields of raw mass of maize/sunflower mixture increased by 6.45–20.40 t/ha (21.55 t/ha in the control), dry matter yield by 0.86–2.48 (3.17 in the control), fodder unit by 0.60–1.61 (2.19 in the control), digestible protein by 0.107–0.253 t/ha (0.226 t/ha in the control). As the fertilization level increased, the gross energy output increased from 69.7 to 97.2 ths MJ per ha, the incremental gross energy output from 63.2 to 72.0 ths MJ per ha; the energy ratio decreased from 10.7–11.2 to 4.8 units. The minimum increment of gross energy of 50.5 ths MJ per ha was in the fertilization variant with high energy ratio of 14.0. The maximum payback of fertilizers with extra produce (20 kg of fodder units per 1 kg a.i./ha, or 200 rubles) was received in the variants with N30 and N60 kg a.i./ha, the minimum (1.9 kg of fodder units per 1 kg a.i./ha, or 190 rubles) in the variant with 40 tons of manure + N60.
About the Authors
O. T. Andreeva
Research Institute of Veterinary Science of Eastern Siberia – Branch of the SFSCA RAS
Russian Federation
Russian Federation
Candidate of Science in Agriculture, Lead Researcher,
49, Kirova St, Chita, 672010
N. G. Pilipenko
Research Institute of Veterinary Science of Eastern Siberia – Branch of the SFSCA RAS
Russian Federation
Russian Federation
Candidate of Science in Agriculture, Senior Researcher,
49, Kirova St, Chita, 672010
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Review
For citations:
Andreeva O.T., Pilipenko N.G. SILAGE CROP CULTIVATION ON MEADOW-CHERNOZEM SOILS IN EASTERN TRANSBAIKALIA. Siberian Herald of Agricultural Science. 2017;47(2):43-50. (In Russ.)
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