PRODUCTIVITY OF FODDER-GRAIN CROPS IN MIXED SOWINGS AND QUALITY OF HAYLAGE FROM THEM UNDER CONDITIONS OF THE NORTH KULUNDA STEPPE
Abstract
Studies were conducted in 2013–2015 under conditions of a field experiment in the steppe zone of North Kulunda classified according to the agroclimatic zoning scheme as a lukewarm, insufficiently wet region. There is given the dynamics of yields and nutritive values of single-crop and mixed sowings of grain crops and field peas. Energy efficiency indices of annual grasses-and-legumes depending on their components are presented. Recording of green mass yields and determination of dry matter contents in the plants have shown that the 60% oats + 50% field peas mixture is most productive (16.4 tons per ha) when harvested for soilage. The proportion of legume component in mixtures made up from 12 to 40 percent. It has been found that grass mixtures are more (by 13–15%) productive and adapted to weather conditions of the zone as compared with the annual sowings. The analysis of haylage quality showed that the lactic-acetic acids ratio was optimal across the variants, indicating the regulated homofermentative type of fermentation. Butyric acid has been found in small quantities in only the single variant, so the experimental samples of haylage can be related to feeds of high-class and good quality as to biochemical parameters. The haylage obtained from the mixtures corresponds to the requirements for I and II class feeds. The contents of moisture and crude fiber are in full accord with the State standard. The crude protein content also meets the requirements for high-quality haylage: not less than 13% for class I, and not less than 11% for class II.
About the Authors
T. A. Sadokhina
Siberian Research Institute of Fodder Crops, SFSCA RAS
Russian Federation
Russian Federation
Candidate of Science in Agriculture, Lead Researcher,
Krasnoobsk, Novosibirsk Region, 630501
D. Yu. Bakshayev
Siberian Research Institute of Fodder Crops, SFSCA RAS
Russian Federation
Russian Federation
Candidate of Science in Agriculture, Lead Researcher,
Krasnoobsk, Novosibirsk Region, 630501
T. G. Lomova
Siberian Research Institute of Fodder Crops, SFSCA RAS
Russian Federation
Russian Federation
Candidate of Science in Agriculture, Lead Researcher,
Krasnoobsk, Novosibirsk Region, 630501
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Review
For citations:
Sadokhina T.A., Bakshayev D.Yu., Lomova T.G. PRODUCTIVITY OF FODDER-GRAIN CROPS IN MIXED SOWINGS AND QUALITY OF HAYLAGE FROM THEM UNDER CONDITIONS OF THE NORTH KULUNDA STEPPE. Siberian Herald of Agricultural Science. 2017;47(2):35-42. (In Russ.)
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