Efficiency of potato fertilization on sod-podzolic loamy sand soil | Эффективность применения удобрений под картофель на дерново-подзолистой супесчаной почве
2013
Shchetko, A.I. | Rybak, A.R., Grodno Zonal Institute of Plant Growing, Shchuchin (Belarus)
In course of the research there were studied potato fertilizer systems which provided obtaining of a planned crop yield. The research was realized in in the conditions of the Republic of Belarus in a long-term stationary field experiment in RUE 'Grodno Zonal Institute of Plant Growing' (Shchuchin (Belarus)) on sod-podzolic sandy loam soil. As a result of realized research it was revealed that the optimum fertilizer system for the potatoes (Solanum tuberosum) was at using of 50 t/ha of organic fertilizers and mineral fertilizers in dose N80+40P30K120. Such fertilizer system made it possible to obtain in experiment the most high productivity of tubers - 256 c/ha with the starch content of 16.2%, net income 594.0 USD/ha and profitability 119%. Specific removal of the main nutrients in given fertilizer system was formed: nitrogen – 7.1 kg/t, phosphorus – 2.9 kg/t, potassium – 14.8 kg/t. The efficiency of various fertilizer systems for potato; fertilizer influence on content of main nutrients in tubers and potato vine; general specific removal of potato nutrients (average for 2009, 2012) were presented.
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