Abstract: Results from an international stationary field trial (ISDV) have been analyzed for effects of increasing nitrogen doses on yield of corn. The trial had been established on a calcareous chernozem soil, at Rimski Šančevi experiment field of Institute of Field and Vegetable Crops, Novi Sad. The average yield of grain obtained in the variants with plowed under harvest residues was 9.80 t ha -1 . It was higher by 3.28 t ha -1 than the average yield obtained in the fertilized variants that received no harvest residues. On average for both analyzed hybrids, the highest average yield (11.67 t ha -1 ) was achieved in the fertilization variant with 150 kg ha -1 of nitrogen combined with plowing under of harvest residues.

corn, nitrogen, fertilization, crop residues, yield

Presentation: oral