Abstract
The article deals with the insufficiently studied problem of variegated alfalfa and eastern galega presowing seed treatment, which can serve as an excellent reserve for increasing their forage productivity. The quality of the seeds determines the stand density of perennial grasses and their yield. The studies have been performed on sod-podzolic medium loamy soil. The authors studied the effect of molybdenum-acid ammonium (300 gm/t), Rhizotorphine bacterial preparation (for variegated alfalfa – 0.5 l/t, for eastern galega – 1.0 l/t), HB-101 plant growth regulator (1 ml/t), and Agree's Forsage complex fertilizer (1.2 l/t) upon cultivating the studied crops. The consumption rate of the working solution (water + preparation) was 10 litres per ton of seeds. The accounting plot area was 33 m2. Perennial legumes were sown after spring rapeseed; the seeding rate for variegated alfalfa was 14 kg/ha, for eastern galega – 26 kg/ha. It has been found that introducing seed treatment with the Agree's Forsage complex fertilizer increases productivity by 23–47% due to increasing the field germination of variegated alfalfa by 10–15% and eastern galega by 4–10%, and due to increasing the number of nodule bacteria by 6–13 per plant and 8–16 per plant respectively.
Highlights
Increasing productivity of field crops is the task that agrarians regularly perform
The authors studied the effect of molybdenum-acid ammonium (300 gm/t), Rhizotorphine bacterial preparation, HB-101 plant growth regulator (1 ml/t), and Agree's Forsage complex fertilizer (1.2 l/t) upon cultivating the studied crops
The agricultural production in the Udmurt Republic is focused on livestock breeding [3, 4] and a significant role in creating a solid forage base belongs to perennial herbs, the long growing season of which allows using them for hay and haylage, and for pasturing [5,6,7]
Summary
Increasing productivity of field crops is the task that agrarians regularly perform. The use of plant growth regulators, complex fertilizers, biological preparations, and micronutrient fertilizers can serve as a reserve for solving this problem [1].Simultaneously, there are practically no such studies on the sod-podzolic soil of the region, which stipulates the necessity of research and development of production recommendations [2].The agricultural production in the Udmurt Republic is focused on livestock breeding [3, 4] and a significant role in creating a solid forage base belongs to perennial herbs, the long growing season of which allows using them for hay and haylage, and for pasturing [5,6,7]. There are practically no such studies on the sod-podzolic soil of the region, which stipulates the necessity of research and development of production recommendations [2]. The high productivity of perennial herbs and their conformity with the physiological needs of various animal species successfully combine with several valuable economic qualities: the high adaptability, the ability to thoroughly and rationally use the growing conditions, and the high resourcesaving ability. Since they grow in the same location for several years, no annual costs are required for their cultivation [8, 9]. The issues of increasing productivity remain relevant
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