SOWING DATES, COVER CROPS AND DENSITY OF STANDING OF ALFALFA PLANTS WHEN CULTIVATED FOR SEEDS
Abstract
Results are given from researches into the influence of sowing dates, cover crops and alfalfa stand densities on thinning out of herbage and seed production under conditions of the south of Western Siberia. It has been established that the maximum seed yield is provided by summer-sown uncovered crops. Among the cover crops studied, the most suitable ones for alfalfa are forage millet and Siberian millet. The highest alfalfa seed production, irrespective of sowing date and cover crop, was obtained by sowing 1.5 kg of germinating seeds per ha. Thinning out of alfalfa herbage for 1-3 years of the life is 46.2-49.5% in uncovered crops and 56.0-71.1% in covered crops. In the third year of use, alfalfa seed production decreases 3.4-3.8 times compared to that in the first year.
About the Authors
V. P. Oleshko
Altai Scientific Research Institute of Agriculture, Russian Academy of Agricultural Sciences
Russian Federation
Russian Federation
A. A. Garkusha
Altai Scientific Research Institute of Agriculture, Russian Academy of Agricultural Sciences
Russian Federation
Russian Federation
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Review
For citations:
Oleshko V.P., Garkusha A.A. SOWING DATES, COVER CROPS AND DENSITY OF STANDING OF ALFALFA PLANTS WHEN CULTIVATED FOR SEEDS. Siberian Herald of Agricultural Science. 2014;(1):56-63. (In Russ.)
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