Effect of nitrogen fertilizers on plants and soil under different methods of their application. Communication 2. Effect of depth of application of ammonium sulphate on utilization of nitrogen by potatoes
Semenov, V.M.; Sokolov, O.A.
Agrokhimiya (8): 12-18
ISSN/ISBN: 0002-1881 Accession: 001068523
Potatoes were given ammonium sulphate at 400 mg N/pot applied by mixing in 0-10, 10-20 or 20-30 cm soil layers, in bands or on the whole area at depths of 10, 20 or 30 cm. N applied in bands or onto the whole area at a depth of 10 cm gave the highest tuber yields. Assimilation of fertilizer N by plants decreased with increases in the depth of its application. The fertilizer N balance in the soil-plant system is given.