摘要
通过多年多点多品种的小区试验、定位试验及不同播期播量的高产攻关与高产示范 ,对高产小麦氮肥适宜用量进行了研究。结果表明 :在中产土壤条件下 ,6 6 6 7m2 产小麦 4 5 0～ 5 0 0kg ,以持续高产和提高土壤肥力为前提 ,每年应 6 6 6 7m2 施优质有机肥 30 0 0kg、纯N 12～ 14kg、P2 O56～ 8kg。
Suitable nitrogen application rate was studied through plot trials with different varieties and locations,located trials with different seeding date and seeding rate,and high yielding technology demonstration.Results showed that the suitable organic fertilizer rate was 3 000 kg/667m 2,nitrogen rate was 12～14 kg/667 m 2 and P 2O 5 rate was 6～8 kg/667 m 2 for the mid yielding soil to maintain a high yielding level and improve the soil fertility.
出处
《华北农学报》
CSCD
北大核心
2002年第z1期170-177,共8页
Acta Agriculturae Boreali-Sinica
关键词
小麦
高产
氮肥适宜用量
Wheat
High yielding
N application rate
