期刊论文

中文

农业环境科学学报

1672-2043

2007

26

1

29-35

10.3321/j.issn:1672-2043.2007.01.006

国家自然科学基金资助项目（300270770） 中加合作项目（HN13）

本校为第一机构

2005年在利用渗漏池模拟长江中游双季稻地区两种主要水稻土壤的基础上，进行了施用化肥和配施等P2O5猪粪对稻田氮、磷等养分动态特征影响的研究。结果表明，表面水电导率（Ec）、总氮（TN）、总磷（TP）浓度和NH4^＋-N浓度在施肥后1～3d达到最高，然后均随着时间的延长迅速下降，至7～15d逐渐接近CK，7-15d内表面水pH逐渐升高，至30d后逐渐趋于平缓。与施用化肥相比，峰值时猪粪处理的表面水TN浓度降低了28．9％～62．9％；NH4^＋-N浓度降低了43．7％～48．8％，但NO3^--N却远高于施用化肥，且晚稻较早稻平均升高56．5％；晚稻表面水TP浓度提高51．2％。而且早、晚稻在7～50d期间维持11P浓度均高...

Based on modeling original state of two soils in the middle reach of Yangtze River by using lysimeter, the dynamics of pH, EC, N and P in floodwater in flooded rice fields after receiving fertilizer and pig manure of equal P2O5 were studied in 2005. The results showed that the concentrations of floodwater EC, total nitrogen （TN）, total phosphorus （TP） and ammonium nitrogen （AN） at reached highest after 1-3 days of fertilizer application, and then all the nutrients declined rapidly and approached to the level of CK after 7-15 days. The flo...