高山冷凉地区露地甘蓝优化施肥方案实效验证

Verification Effectiveness of Optimized Fertilization Scheme for Cabbage in Open Field of Alpine Cold Area

为实地验证高山冷凉地区露地甘蓝优化施肥方案的实际效应，在绥阳县宽阔镇实施了露地甘蓝优化施肥与习惯施肥同田大区比较试验。试验结果表明，优化施肥区甘蓝植株生长态势更好，增产7．27％，新增纯收益225．18元／667m2，增幅达16．21％，新增投产比达1：9．45，据此推荐类似地区露地甘蓝每667m2优化施肥配方为：N14．26kg，P2O55．60kg，K2O10．30kg，并配合施用商品有机肥100-150kg。

We compared the effects of optimized and conventional fertilization treatments on cabbage in open filed in Kuankuo town, in order to verify actual effects of optimized fertilization scheme for cabbage in alpine cold area.The results showed that, under optimized fertilization treatment, cabbage grew better, with the yield-increasing rate, increased net income, increased net incomerate and increased input-output ratio of 7.27%, 225.18 Yuan/667 m2, 16.21% and 1：9.45, respectively. Thus, we suggested the optimized fertilization scheme was N 14.26 kg/667 m2, P2O5 5.60 kg/667 m2, K2O 10.30 kg/667 m2 combined with the application of 100-150 kg organic fertilizer in similar areas for open field cabbage.