栽培因素对燕麦产量和主要品质的影响

The Effects of Cultivation Factors on Yield and Main Quality of Oats

为给西北半干旱农牧区燕麦优质高产栽培提供依据,采用四因素二次回归正交旋转组合设计(?实施)设置23个处理小区,随机排列,研究播种期、播种量、施氮量和施磷量对裸燕麦‘定莜9号’的产量和品质的影响。播种期与施氮量,播种期与施磷量之间存在协同增产作用;增施氮、磷肥能够提高籽粒粗蛋白和β-葡聚糖含量,但过量施肥则引起减产;各因素对燕麦产量和品质的影响顺序为施氮量>施磷量>播种期>播种量。四因素对‘定莜9号’燕麦最好的协同栽培模式是:播种期在4月下旬,施氮量为106~147 kg/hm2,播种量为120 kg/hm2,施磷量为300~330 kg/hm2。

The objective is to provide evidence for the high-quality and high-yield cultivation of oats in semiarid farm and pastoral areas of northwest China.23 treatment plots of random arrangement were designed according to the four factors quadratic regression orthogonal rotary(?implementation)to study the seeding time,seeding rate,effects of nitrogen and phosphorus on yield and quality of naked oats‘Dingyou No.9’.The results showed that the seeding time and nitrogen rate had synergistic action on oats yield.The same condition appeared between seeding time and phosphorus rate.Increasing nitrogen and phosphor could raise oats crude protein andβ-glucan,but excessive application of fertilizer could reduce the yield.The effect order of the four cultivation factors on yield and quality was nitrogen rate>phosphorus rate>seeding time>seeding rate successively.The best synergistic cultivation mode of the four factors for‘Dingyou No.9’is:seeding time in late April,nitrogen rate of about 106-147 kg/hm2,planting density of 120 kg/hm2,and phosphorus rate of 300-330 kg/hm2.