不同密度与施肥量对龙花243产量的影响

苏秋芹

闽西职业技术学院学报, 2011, 13(3): 112-115  DOI: 10.3969/j.issn.1673-4823.2011.03.027;      追溯原文......本站官方QQ群：62473826

花生; 龙花243; 高产栽培; 施肥量; 种植密度; 优化方案

采用四因子五水平正交回归旋转组合设计，研究龙花243产量与不同种植密度、氮磷钾施肥量（N、P、K）间的关系，建立了各因素与产量指标的优化数学模式，确立了高产优化栽培方案，各因素对产量的影响程度为磷肥＞氮肥＞钾肥＞密度。

Effects of different planting density and amount of N, P, K Fertilizer on yield of Longhua 243

SU Qiu-qin

Journal of Minxi Vocational and Technical College, 2011, 13(3): 112-115

peanut; Longhua 243; high-yield cultivation; amount of fertilizer; density; optimization scheme

Four -factor and five -level regression rotation design was used to study the relationship between different planting density and amount of fertilizer (N, P, K) of Longhua 243 yield. The optimization mathematical models of various factors and yield index was established, that is, Y =4200 ＋420X1 ＋288.75X2 ＋105X3 ＋175X4 －144.6875X12 －221.5625X22 －253.4375X32 － 165.3125X42 ＋174.375X1X2 ＋20.625X1X3 ＋52.5X1X4 ＋58.125X2X3 ＋41.25X2X4 －7.5X3X4. The optimization schemes of high-yield Longhua 243 (higher than 3676.67 kg/hm²) was established: the density is 211440~219750 points /hm²; the amount of Carbamide, Superphosphate and Potassium sulfate is 208.95~232.12 kg/hm², 127.02~147.54 kg/hm² and 164.4～195.4 kg/hm² respectively. The influence degree of every factor on Longhua 243 yield is P＞N＞K＞density.

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  龙花243