Agricultural and qualitative effects of foliar and soil fertilization of potatoes by urea-ammonium-nitrate solution (UAN) with addition of magnesium sulphate
2001
Bernat, E. | Jablonski, K. (Instytut Hodowli i Aklimatyzacji Roslin Oddzial w Boninie, Bonin (Poland))
Increase of the marketable yield was observed after foliar fertilization at 15 kg N/ha dose urea- amonium nitrate (UAN-32) solution and decrease of occurrence of rust internal and hollow centre. As a results of foliar fertilization by UAN-32 solution of dry mass and starch have decreased, while content of nitrate had increased. Addition of magnesium sulphate to UAN-32 solution had no influence on fertilization efficiency, however caused increase of starch content in tubers. Preliminary results of soil fertilization with UAN-32 during planting indicated beneficial agronomic effects in comparison to equivalent fertilization by urea. There was no negative influence of fertilization with UAN-32 on the quality of potatoes
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