THE INFLUENCE OF HUMIC ACIDS ON THE PRODUCTIVITY AND QUALITY OF BULB ONION ON IRRIGATED CHESTNUT SOILS IN THE SARATOV TRANSVOLGA REGION
DOI:
https://doi.org/10.28983/asj.v0i10.604Keywords:
humic acids based products, bulb onion, irrigation, dark chestnut soils, Volga regionAbstract
There were tested humic acids based products by Life Force Limited Liability Company on irrigated dark chestnut soils in the Saratov Transvolga region. The subjects of study were bulb onion "Khalcedon" and products containing meso- (calcium) and trace elements (boron, copper, zinc). It was find out that spraying with a solution of Reasil micro Hydro Mix increased the yield of onion by 4.01 t / ha (9% higher than control). The use of a solution of sodium humate with microelements promoted an increase in yield by 5.62 t / ha (13% higher than control). The maximum productivity of onion (60.48 t /ha on average over three years) was obtained with double application of Reasil Forte Amino Copper on the background of Humate K-Na with microelements. Humic acids based products at the same time increased the commercial yield. The studied humic acids based products positively influenced the quality of the crop: the content of sugars, the accumulation of vitamin C and nutrients in the bulbs are increased. The removal of nutrients from the soil with the onions harvest affected by humic acids based products was increased.
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