The effects of different planting densities and fertilization rates on yield and economic traits of soybean cultivar Tian-long 1 in the upland of Red soils were investigated. The results showed that the range of yields was around 143.60~192.49 kg/667m2 with, the highest yield of 192.49 kg/667m2 from treatment A3B2C1D3, while yields in treatments A3B1C3D2 and A3B3C2D1 were 185.69 kg/667m2 and 182.36 kg/667m2 respectively. Planting density was the first and main factor influencing yield and economic traits of soybean cultivar Tian-long 1, and the fertilization rates came the second. The order of yield-influencing effect was density>nitrogenous fertilizer>phosphate fertilizer>potassium fertilizer.%研究了不同密度和氮磷钾肥料等因素组合对天隆1号产量和经济性状的影响,结果表明:不同密度与肥料组合的天隆1号产量在 143.60~192.49 kg/667m2 ,其中处理8 (A3B2C1D3)产量最高,达到 192.49 kg/667m2 ,处理7(A3B1C3D2)、处理9(A3B3C2D1)的产量分别为 185.69 kg/667m2、182.36 kg/667m2 ,分列二、三位.密度是影响天隆1号产量和经济性状的主要因素,对产量及部分经济性状的影响达显著水平,而氮磷钾等肥料因素是次要因素.综合方差分析结果和变异系数来看,不同因素对天隆1号的影响效应大小依次为种植密度>氮肥>磷肥>钾肥.
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