Regulation of winter wheat productivity


O. Voloschuk, I. Voloschuk, O. Stasiv, V. Hlyva and L. Baistruk-Hlodan*

The forest-steppe zone occupies 34% of the Ukrainian territory. in which 40.1% of agricultural land is concentrated. The climate is moderately continental; in the soil there is more often an excess of moisture than a lack. The sum of active temperatures during the growing season is 2780°C. The annual radiation balance is 1800-1850 MJ/m2, and the total radiation for the year is 95-107 kcal/cm2. Soil cover is complex and variegated, represented by 160 soil differences. Such soil and climatic conditions cause a low winter wheat yield (4.0 t/ha). Therefore, the objective of our research was to establish the effect of biological preparations used in pre-sowing treatment on the adaptive and productive properties of plants. The high efficiency of the growth stimulator Emistim C and the bacterial drug Rizoplan was achieved both for separate and combined use with Vitavax 200 FF, 34% w.s. (2.5 l/ha) for seed germination in the field, growth and development in the autumn, which ensured the best wintering of plants, the formation of high seed yields and sowing qualities.

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