Научный журнал

Polycomponent fertilizer Bioplant Flora affects the phosphorous nutrition of rice plants. Its inclusion into the fertilizing system increases the phosphorus content in the aboveground plant organs immediately after its application and till the heading stage by 0.01-0.09% depending on the rate and method of application. During the full ripe stage, Bioplant Flora activates phosphorous attraction from leaves and stems to caryopses; therefore, their content of phosphorus is by 0.01-0.05% lower, and that in grain by 0.01-0.06% higher than in the control plants. Plants most intensively absorbed phosphorous in the first half of the growing period; to the heading stage, they accumulated approximately 65 % of the total nutrient demand. Each rice plant intakes 31.99-39.60 mg phosphorous during the growing period. Under the influence of Bioplant Flora, the content of phosphorous absorbed by plants increases by 7.7-15.5 %, 2.0-20.6 %, and 1.9-5.8 % at the preplant treatment and the foliar application during the tillering and heading stages, respectively. This is accompanied by an increase of its economic take-out by 0.67-8.06 % due only to the removal with grain yield. The use of Bioplant Flora has almost no effect on phosphorous consumption per production unit, which increases at seeds treatment and foliar application during the tillering stage and decreases at the application during the heading stage, but the differences do not exceed 2.7 %. The inclusion of Bioplant Flora into the system of rice fertilizing increases the phosphorous utilization coefficient from similar fertilizers by 0.59-6.99 % depending on the method and rate of application.