摘要
2006年宜良县土壤养分调查结果表明:全县耕地土壤有机质、全氮、碱解氮、速效磷、速效钾含量分别为32.41g kg-1、1.77 g kg-1、128.4 mg kg-1、35.5 mg kg-1、161.7 mg kg-1,与1980年相比较,水稻土有机质、速效磷、速效钾含量分别增加了1.61 g kg-1、13.0 mg kg-1、87.0 mg kg-1,旱地土分别增加了3.75 g kg-1、21.3 mg kg-1、162.8 mg kg-1。然而,汤池镇、耿家营乡和竹山乡的水稻土有机质含量,耿家营乡和狗街镇的旱地土有机质含量,南羊镇旱地土速效磷含量与1980年相比都发生了不同程度的减少。
The investigation of soil nutrients in Yiliang county in 2006 showed that the contents of soil organic matter, total N, available N, available P, available K in cultivated land were 32.41g/kg^-1, 1.77 g/kg^-1,128.4 mg/kg^-1, 35.5 mg/kg^-1 and 161.7 mg/kg^-1 respectively. As compared with those in 1980, the contents of paddy soil organic matter, available P and available K were increased by 1.61 g /kg^-1, 13.0 mg/kg^-1 and 87.0 mg/kg^-1 ,respectively. The contents of upland soil organic matter, available Pand available K were increased by 3.75 g/kg^-1,21.3 mg /kg^-1and 162.8 mg/kg^-1, respectively. However,the contents of organic matter in paddy soil in Tangchi town, Gengjiaying village and Zhushan village, and in upland soil in Gengjiaying village and Goujie town dereased in different extents, as well as the soil available P in upland in Nanyang town compared with 1980.
出处
《土壤通报》
CAS
CSCD
北大核心
2008年第2期260-265,共6页
Chinese Journal of Soil Science
基金
农业部全国"测土配方施肥"项目(农财办(2006)11号文件)部分内容
关键词
耕地土壤
养分状况
变化特征
Cultivated land
Nutrients status
Changing characteristics
