水土保持学报2011，Vol.25Issue(6)：7-12,6.
灌溉与施肥对稻田氮磷径流流失的影响
Effects of Irrigation and Fertilization on Nitrogen and Phosphorus Runoff from Paddy Field
摘要
Abstract
The article explored the influence of nitrogen fertilizer application with several times under different irrigation modes on nitrogen and phosphorus loss in paddy fields under field experiment condition. The results indicated that the runoff of total nitrogen and phosphorus was between 4. 41 ～17. 85 kg/hm2 and 0. 28 ~0. 44 kg/hm2 under different fertilizer treatments with traditional irrigation respectively. The loss percentage of nitrogen and phosphorus fertilizer was respectively about 3. 2% and 0. 17%. Compared to traditional irrigation, the average loss of total nitrogen and phosphorus relative were reduced by 22. 99% and 10. 01% under intermit irrigation, with only one percentage point loss of the of nitrogen fertilizer and with the same loss of total phosphorus. It was included that the yield of intermit irrigation was higher about 7. 35% than that of traditional irrigation. The treatment of nitrogen with four times application under the intermit irrigation would decrease the runoff of nitrogen and phosphorus and could increase the yield.关键词
灌溉/施肥/稻田/径流/氯磷流失Key words
irrigation/ fertilization/ paddy field/ runoff/ nitrogen and phosphorus loss分类
农业科技引用本文复制引用
张丽娟,马友华,石英尧,朱小红,汪丽婷,马中文,方瑞元..灌溉与施肥对稻田氮磷径流流失的影响[J].水土保持学报,2011,25(6):7-12,6.基金项目
公益性行业(农业)科研专项(201003014-2) （农业）
国家水体污染控制与治理科技重大专项(2008ZX07103-002) （2008ZX07103-002）
