摘要
应用地统计学方法分析了农场尺度的红壤蔗区土壤表层的土壤速效钾、缓效钾的空间分布结构。结果表明,研究区域内的土壤速效钾和缓效钾含量都存在极强的空间相关性,在整个区域的空间分布具有相似性。缓效钾的协同克立格法的插值精度高于普通克立格法。研究结果可为甘蔗的钾肥精准管理提供依据。
Geostatistical methods were applied to estimate the spatial distribution of soil available K and slow-release K contents. The results indicated there were strong spatial dependence of the items, and the spatial distributing pattern of the items was similar in the study region. The overall estimation of slow-release K quality by cokriging was superior to that by ordinary kriging. The results could be useful to conduct optimal potassium fertilization for sugarcane planting.
出处
《广西农业生物科学》
CAS
CSCD
2007年第1期67-70,共4页
Journal of Guangxi Agricultural and Biological Science
基金
广西大学谭锦球青年科研基金资助项目
关键词
蔗区
土壤速效钾和缓效钾
地统计学
sugarcane field
soil available K and slow-release K
Geostatistic
