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Agricultural University at Szczecin, Institute of Agricultural Engineering, Department of Plant Production and Irrigation Head: Prof fit., D.Sc. Stanisław J. Karczmarczyk Field experiments on effects of sprinkling irrigation and various doses of nitrogen were performed on two types of soil: sand and sandy loam. On the sandy soil irrigated sugar beets and corn yielded best whean supplied with 210 kg...
In the years 1981-1984, at the Agricultural Experimental Station at Felin near Lublin, field experiments were carried out on the crop yields of three varieties of winter wheat (Grana - Liwilla - Panda) under the effect of three sowing rates (3 - 4.5 - 6 million grains per hectare) and three levels of mineral fertilization (250 - 500 - 750 kgNPK/ha). Only several days differences in the duration of...
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