Impact of microalgae-based biopreparation on soil fertility

This study highlights the analysis of changes in the total humus content, nitrogen, phosphorus, potassium, and easily assimilable nutrients in soil samples to evaluate the impact of a biopreparation based on algological objects on soil fertility. Additionally, the experiments indicated that the use of microbiological biopreparations, such as “Algobiostim” and “Serhosil”, through foliar spraying can effectively stimulate the growth of plants. The liquid form of the “Algobiostim” biopreparation was particularly noted for its ease of application, growth-stimulating properties, and effectiveness in combating microbiological diseases. Subsequent studies at the “IGX Ziraboti” farm in the Bukhara region confirmed the biological effectiveness of the “Algobiostim” biopreparation when applied at 4.0 l/ha. The results indicated that the biological effectiveness of the experimental plot was 50.20% lower than the experimental plot treated with “Algobiostim” and Serhosil biopreparations, which achieved 86.42% and 93.24% effectiveness, respectively. When applied at 4.5 l/ha, the biological effectiveness of the “Algobiostim” biopreparation was 92.18%, while the Serhosil-treated plot achieved 94.31%, 2.13% higher than the experimental plot. The experimental plots treated with “Algobiostim” yielded an additional 2.38 q/ha at 4.0 l/ha and 3.16 q/ha at 4.5 l/ha, while the Serhosil-treated plot yielded an additional 4.83 q/ha.

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