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油菜种植面积逐年扩大,单产稳步提高。但大面积生产中油菜移栽密度和施肥水平不平衡,一定程度上限制了单产的提高。为此,我们进行了油菜移栽密度与施肥量的最佳组合试验,为夺取高产更高产提供理论依据。1材料与方法1.1试验概况 试验设在如皋市东陈镇西群村吴公田责任田,肥力水平中等。油菜前茬水稻。供试品种“秦油2号”,1997年9月14日播种,10月29日移栽。1.2试验设计与方法 设密度(A分别为A_16000、A_28000、A_310000株/亩)与氮肥(B分别为B_112、
Rapeseed area has expanded each year, steady increase in yields. However, the imbalance between transplanting density and fertilization level in large-scale production of rapeseed limited the improvement of yield to a certain extent. For this reason, we conducted the best combined experiment of rapeseed transplanting density and fertilizer amount, which provided a theoretical basis for the purpose of obtaining high yield and higher yield. 1 Materials and methods 1.1 Test Overview The test is located in Rugao Tiancun West Village Wugongtian responsibility field, medium fertility level. Rape before crop rice. Test varieties “Qinyou 2”, September 14, 1997 sowing, October 29 transplanting. 1.2 Experimental Design and Method Density (A = A_16000, A_28000, A_310000 plants / mu) and nitrogen fertilizer (B = B_112,