Abstract
The effect of two new organic soil conditioners produced by Life Force Research & Production Enterprise was studied within the field trials on irrigated dark chestnut soils of the Saratov Zavolzhye region. These two products differ in the content of total carbon, nitrogen compounds and salts of humic and fulvic acids. The objects of research were fodder beets, garden carrots, white cabbage of late ripening variety, onions. The features of the yield formation of vegetable crops using different soil conditioners have been identified and their optimal doses have been established. It was shown that the use of soil conditioners was not covered by the cost of additionally gained crop. All types of the studied fertilizers positively influenced the content of vitamins A and C.
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