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Journal: The Way of Science (Vol.1, No. 49)

Publication Date:

Authors : ;

Page : 29-34

Keywords : acidity of the soil; lime application; dolomite flour; metallurgical slag; green manure: melilot and lupine annual; potato productivity; common potato scab; heavy metals (HM).;

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The materials received in the 2nd stationary (2004-2007; 2004-2008) and the 1st short-term the field experiments with potatoes (2014-2017) in the territory of the VNIIKH scientific and experimental base «Korenevo» (Lyuberetsky district of the Moscow region) were used. The purpose of work consisted in development of the integrated system of potato fertilizers on the sod-podzol sandy soil providing stable productivity at the level of 35-40 t/hectare including average annual efficiency of a specialized crop rotation of 6-7 t grain and high quality of production, capable a long time to keep and improve soil fertility. Experimental data confirm high positive influence of lime application and magnesium - sulfur-containing fertilizers on potato productivity and soil fertility. Magnesium in combination with sulfur exerts positive impact not only on harvest size, but also on its quality. Content of starch, solid increases, taste improves, darkening of pulp and concentration of the reducing sugars decreases in potato tubers. It is possible to use of the industry waste, with obligatory monitoring of heavy metals (HM) maintenance in environment objects for potatoes. The qualitative and quantitative composition of bean siderat biomass (a lu-pine and the melilot annual) against the background of lime application al-most completely satisfied the biological needs of potato plants for batteries (N, P, Ca, Mg and K); provided the balanced nutritious mode of the sod-podzol sandy soil. Potato productivity of two grades (Udacha, Malinovka) increased by 4,9-8,9 t/hectare (18-32 %) from interaction of factors: lime application + green manure. Optimum economic indicators are received in option: N90P90K90-120 + the melilot annual + metallurgical slag (0,5 by hydrolytic acidities) - high economic return (6,5-8,8 rub) and low product cost (1,3-1,6 rub/kg).

Last modified: 2018-11-13 17:53:39