Agronomy Science, przyrodniczy lublin, czasopisma up, czasopisma uniwersytet przyrodniczy lublin
In the field experiments carried on light soil in 2018–2020 the effect of foliar fertilization of potato plants with Herbagreen Basic and Nano Active Forte multicomponent fertilizers on the yield and selected quality characteristics of potato tubers was determined. The fertilizers used for the research were nano-forms. Fertilizers were applied twice during the growing season of potato plants, at a dose of 2 kg ha–1, in the BBCH 20 and BBCH 59 phase. The foliar fertilization was carried out under the conditions mineral fertilization with nitrogen: 60, 120 and 180 kg N ha–1. The control object was without foliar fertilization. A significant increase in tuber yield was obtained (by 9.5%) and a greater share of large tubers in the yield after the application of nanofertilizers compared to the object without foliar fertilization. A significantly lower share of tubers with external defects in the yield was shown under the influence of the Nano Active Forte fertilizer compared to the Herbagreen Basic fertilizer. Significantly higher content of starch and vitamin C were found in tubers after applying the Herbagreen Basic fertilizer compared to the Nano Active Forte fertilizer. The highest yield of tubers, the content of starch, vitamin C and dry matter was obtained after the application of mineral nitrogen in the dose of 120 kg N ha–1. Along with increasing the dose of mineral nitrogen from 60 to 180 kg ha–1, a significant increase in the share of large tubers and with external defects.
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