| 红壤蔗区土壤有效态钾的空间变异研究 |
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| 引用本文： | 黄智刚,蒋代华.红壤蔗区土壤有效态钾的空间变异研究[J].广西农业生物科学,2007,26(1):67-70. |
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| 作者姓名： | 黄智刚 蒋代华 |
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| 作者单位： | 广西大学,农学院,广西,南宁,530005 |
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| 基金项目： | 广西大学谭锦球青年科研基金资助项目 |
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| 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。
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| 关 键 词： | 蔗区 土壤速效钾和缓效钾 地统计学 |
| 文章编号： | 1008-3464(2007)01-0067-04 |
| 修稿时间： | 2005年7月22日 |
Spatial variability of soil available K in sugarcane field of red soil area |
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| HUANG Zhi-gang,JIANG Dai-hua.Spatial variability of soil available K in sugarcane field of red soil area[J].Journal of Guangxi Agricultural and Biological Science,2007,26(1):67-70. |
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| Authors: | HUANG Zhi-gang JIANG Dai-hua |
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| Abstract: | 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. |
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| Keywords: | sugarcane field soil available K and slow-release K Geostatistic |
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