种植密度和施肥量对燕麦白燕2号产量的影响

Effects of Planting Density and Fertilizing Amount on Yield of Oat Baiyan 2

为使外引燕麦品种白燕2号及其配套高产栽培技术在黔西北高海拔地区及时应用推广,以密度及氮、磷、钾施用量为研究对象,采用四因素五水平二次通用组合设计对其进行高产栽培试验。结果表明：当密度、氮、磷和钾取值水平分别为0.845-1.248、1.000-1.377、1.109-1.495和0.707-1.180时,产量可达2 250kg/hm2。结论：在黔西北地区,白燕2号产量获得2 250kg/hm2以上的栽培措施为密度544.4万-610.9万粒/hm2,纯N 150.0-168.85 kg/hm2,P2O5 155.45-174.75 kg/hm2,K2O 135.35-159.0kg/hm2;四因子对产量的影响程度依次为N肥〉密度〉K肥〉P肥;N肥施用量和种植密度是影响白燕2号籽粒产量的关键因子。

To timely apply and generalize the introduced oath cultivar Baiyan 2 and matching high-yield culture technique in high-altitude area in northwest Guizhou, a quadratic general rotary unitized design with four factors and five levels was employed in the high-yield cultivation test. Results： The yield reached 2 250 kg/hm2 when the values of density, N, P and K were respectively 0. 845-1. 248, 1. 000-1. 377, 1. 109-1. 495 and 0. 707-1. 180. Conclusion： In northwest Guizhou, the yield of Baiyan 2 could reach 2 250 kg/hm2 when the cultivation measures were as follows： density 5 444-6 109 thousand kernels/hm2 , pure N 150.0- 168. 85 kg/hm2, P2Os 155.45-174.75 kg/hm2 and K2O 135.35- 159.0 kg/hm2; The influencing degree was N〉density〉K〉P; N fertilizing amount and planting density were the key factors influencing yield of Baiyan 2.