Efficiency and environmental safety of organic-mineral fertilizers on crops of early cabbage in the Volga region Nazarov Victor Alekseevich, Doctor of Agricultural Sciences, Professor of the chair

  • Виктор Алексеевич Назаров Saratov State Agrarian University named after N.I. Vavilov
  • Иван Филиппович Медведев Research Agricultural Institute for South-East Region
  • Анастасия Николаевна Зеленова Saratov State Agrarian University named after N.I. Vavilov
Keywords: early cabbage, organic-mineral fertilizers, doses, efficiency, environmental safety

Abstract

The article presents a comparative assessment of the influence of fertilizing properties of glauconitic agro-ores is given, as well as of  its concentrate, produced under the action of a magnetic separator; of concentrate, additionally modified by ultra-high-frequency radiation (microwave radiation); and of organic-mineral fertilizers, including modified concentrate and biohumus on the increase in the yield of early cabbage cultivated on chestnut medium  heavy loamy soil, and its quality. It was established that the application of glauconite concentrate provided an increase in yield additionally by 5.3%, and during the processing of its microwave radiation, it is increased from 33.3 to 34.4 t/ha. However, the application of organic-mineral fertilizers was the most effective variant. The optimum ratio between the two components was 30% concentrate and 70% biohumus and the application of this fertilizer at a dose of 1 t/ha. After application of the fertilizer in this dose such, the content of dry matter, sugars, vitamin C  in cabbages increased, and the content of nitrates and heavy metals decreased, the level of which did not exceed permissible values.

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Author Biographies

Виктор Алексеевич Назаров, Saratov State Agrarian University named after N.I. Vavilov

Doctor of Agricultural Sciences, Professor

Иван Филиппович Медведев, Research Agricultural Institute for South-East Region

Doctor of Agricultural Sciences, Professor

Анастасия Николаевна Зеленова, Saratov State Agrarian University named after N.I. Vavilov

Post-graduate Student

References

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Published
2019-03-18
Section
Agronomy