摘要
对宜州市4个监测点水稻土15年的长期监测表明:有机肥的施用量与有机质含量、氮肥的施用量与碱解氮和全氮含量、全氮的含量与碱解氮含量、钾肥的施用量与缓效钾含量均有极显著的线性相关关系;钾肥的施用量与速效钾含量、有机质含量与速效磷(钾)的含量均有显著的线性相关关系。根据监测结果和实践证明:大面积推广增施有机肥、优化配方施肥措施是切实可行的。
The 15 year＇s monitoring and evaluation result on paddy rice field soil in five montoring and evaluation sites of Yizhou city indicated that the average contents of organic substance, full nitrogen, alkali - dispelling nitrogen, efficient phosphor, fast efficient kalium increased 4.3g/kg, 0.19g/ kg, 83.2g. kg, 11.23mg/kg, 29. 1mg/kg, 28mg/kg respectively in the year of 1999 compared to that in 1985. There was obvious linearity relatinship between the content of organic fertilizer applied and that of organic substance, the content of nitrogen applied and that of alkali - dispelling nitrogen, the content of alkali- dispelling nitrogen and that of full nitrogen; There was obvious linearity relationship between the content of the fast efficient kalium ＆ slow efficient kalium and that of kalium fertilizer applied, the content of efficient phosphor and that of organic substance. According to the monitoring and evaluation resulted showed that the inceasing application of organic fertilizer in a large scale as well as optimizing prescription of fertilizer application could result in bettter social and econimic effect.
出处
《广西农学报》
2006年第5期14-16,共3页
Journal of Guangxi Agriculture
关键词
水稻土
肥力
监测
应用
Paddy Field Soil Fertility Monitoring and Evualtion Application
