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为了探索棉花新品种苏棉 18号种植密度和施肥水平的最佳配合 ,为大面积生产提供参考依据 ,2 0 0 1年进行了苏棉 18号密度与肥料试验研究。1 材料与方法试验采用裂区设计 ,将密度和肥料两因子各设 3个水平 ,以密度为主区 ,即每公顷 3 6万株 (Ａ1)、 4 2万株 (Ａ2 )、 4 8万株
In order to explore the optimal combination of planting density and fertilization level of cotton variety Su-mian 18, and to provide a reference for large-scale production, the density and fertilizers of Sumian No. 18 were studied in 2001. MATERIALS AND METHODS Tests were conducted in a split-plot design. The density and fertilizer factors were set at 3 levels each, with a density of 36,000 plants per hectare (A1), 42,000 plants (A2) and 480,000 Strain