不同种植密度和施肥对粤油13产量及主要农艺性状的影响

Effects on Yield and Agronomic Characteristics of Yueyou No.13 by Different Planting Density and Fertilization

[目的]通过设置不同的种植密度与施肥水平,探索出粤油13高产高效的栽培技术模式。[方法]运用二因素三水平随机区组设计,研究了不同种植密度、施肥水平对粤油13产量、主要农艺性状的影响。[结果]在粤油13种植密度30万株/hm2,施足底肥(生物有机肥2 250 kg/hm2+复合肥300 kg/hm2)的前提下,苗期追施N量76.6 kg/hm2、P2O5量48.8 kg/hm2、K2O量126.0 kg/hm2时可获得较高的产量。[结论]在丘陵红壤旱地条件下,种植密度对粤油13产量的影响达0.05显著水平,而施肥对粤油13产量的影响达0.01显著水平。

[Objective] By setting different densities and fertilization levels,Yueyou No.13 cultivation model for high yield and high efficiency was explored.[Method]Two-factor and three-level randomized block design was used to study the effects of different planting density and fertilizer levels on yield and agronomic characteristics of Yueyou No.13.[Result] Under the conditin of Yueyou No.13 planting density of 300 000 /hm2,enough base fertilizer（bio-organic fertilizer 2 250 kg/hm2 ＋ compound fertilizer 300 kg/hm2）,seedling stage topdressing N amount of 76.6 kg /hm2,P2O5 amount of 48.8 kg /hm2,K2O amount of 126 kg/hm2,better yields could be obtained.[ Conclusion]In hilly upland red soil,different density had significant impact on Yueyou No.13 yield,and fertilizer levels had very significant impact on Yueyou No.13 yield.