Продуктивность звена севооборота и изменение агрохимических показателей дерново-подзолистой супесчаной почвы в зависимости от удобрений | Productivity of a crop rotation link and change of agrochemical indexes of sod-podzolic loamy sand soil depending on fertilization
2013
Shchetko, A.I., Grodno Zonal Institute of Plant Growing, Shchuchin (Belarus)
In course of the research there was studied the doses of complex application of organic and mineral macro and micro fertilizers at various levels of soil pH of sod-podzolic sandy loam soil, provided obtaining of agronomically sound levels of sugar beet (Beta vulgaris var. saccharifera), barley (Hordeum vulgare) and flax (Linum usitatissimum) production with good quality products while maintaining soil fertility. The research was realized in the conditions of the Republic of Belarus in Grodno region on the experimental field of the Republican Unitary Enterprise 'Grodno Zonal Institute of Plant Growing of National Academy of Science of Belarus'. As a result of realized field experiment it was revealed that maximum productivity of the crop rotation 146.0-161.2 с f.u./ha on two levels of acidity of sod-podzolic sandy loam soil was formed when application 20 t/ha cattle manure + N75P70K120 + microelements. The mobile phosphorus content increased in arable layer on 20-45 mg/kg. Using the potassium fertilizers in a rate of 100 and 130 kg/ha did not compensate potassium removal by agricultural crops. The average annual productivity of crop rotation link in dependence on fertilizers at crop cultivation on sod-podzolic sandy loam soil, changes of agrochemical soil indices for crop rotation link were presented.
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