Influence of early plant defoliation and nitrogen fertilization on the productivity of seed potatoes grown on light soils in the Plaskowyz Kolbuszowski
1997
Gasior, J. (Akademia Rolnicza w Krakowie, Rzeszow (Poland). Zaklad Chemizacji Produkcji Rolniczej)
The influence of nitrogen fertilization in dose of 50, 100, 150 and 200 kg/ha and the early defoliation on the seed potato yield and number for three potato varieties were investigated in field experiments. The maximal yield and number of seed potatoes were obtained at various levels of the investigated factors. An indexed seed potato yield, combining their number and weight, was proposed to evaluate the productivity of seed potatoes per ha. It depended mainly on the plant variety and was the highest at 100 kg N/ha
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