水土保持学报2012，Vol.26Issue(1)：43-46,52,5.
不同施肥山核桃林氮磷径流流失特征
Runoff Losses of Nitrogen and Phosphorus Under Carya cathayensis Sarg. Stand with Different Fertilization
摘要
Abstract
Runoff plots under Carya cathayensis Sarg.stand were established to investigate the effects of different fertilization treatments on runoff losses of nitrogen（N） and phosphorus（P）.The results showed that runoff losses of N and P under Carya cathayensis Sarg.stand were decreased with time of fertilization.The N and P losses were mainly in the forms of water-soluble N and P.Water-soluble N and P accounted for 79.43%～83.60% of total N and 47.65%～75.39% of total P.Special compound fertilizer for Carya cathayensis Sarg.stand had a good role in regulation of runoff losses of N and P.Loss loads of N and P from runoff for the treatment of conventional fertilization were 523.41,36.87 g/hm2,respectively.Broadcast-application of the special compound fertilizer decrease runoff losses of N and P by 35.73% and 32.37%,respectively,whereas furrow-application of the special compound fertilizer decrease runoff losses of N and P by 43.37% and 38.46%,respectively,compared with the treatment of conventional fertilization.Therefore,broadcast-and furrow-application of special compound fertilizer could effectively reduced loss risk of N and P in the former period.关键词
山核桃林/山核桃专用肥/沟施/撒施/氮磷径流Key words
Carya cathayensis Sarg.stand/special compound fertilizer/furrow-application/broadcast-application/runoff loss of N and P分类
农业科技引用本文复制引用
黄程鹏,吴家森,许开平,姜培坤..不同施肥山核桃林氮磷径流流失特征[J].水土保持学报,2012,26(1):43-46,52,5.基金项目
国家水体污染控制与治理科技重大专项 （）
