Economic efficiency of application of liquid phosphate fertilizers at growing potato on dark grey podzolized soil

Abstract

The purpose. To determine economic efficiency of application of liquid phosphate fertilizers under potato at growing on dark grey podzolized soil in Left-bank Forest-steppe. Methods. Field, statistical. Regular disposition of alternatives. Results. It is established that application of liquid phosphate fertilizers in standard dose of P35 has positive economic benefit: conditional-net profit makes 18,2 thousand hrn/hectare. At augmentation of doses of these fertilizings up to P70 expenditures for growing have increased, but income was high — 30,1 thousand hrn/hectare. Addition in fertilizer system of fertilizers with Ca, Mg and B promoted augmentation of manufacturing costs on 1550–1770 hrn/hectare, but because of smaller productivity the level of profitableness in these alternatives has decreased on 18,2–26,3% in comparison to alternatives in which applied fertilizers only with NPK. The highest economic indicators characterized alternatives with importation of liquid combined fertilizers of brand 11- 37 in dose of P105 and foliar top dressing Atonikom Plus (0,20% solution) where conditional-net profit made 70 thousand hrn/hectare, and level of profitableness — 75,1%. Conclusions. By the probes it is established that application of LCF 11-37 with foliar top dressing Atonikom Plus is economically justified and is of great importance for practical application. Affirming to that — high economic indicators in alternative with importation of liquid combined fertilizers of brand 11-37 in dose of P105 and foliar top dressing Atonikom Plus (0,20% solution) where conditional-net profit attained peak figure (70 thousand hrn/hectare), and level of profitableness — 75,1%.