|
|||||
|
|
| 红壤蔗区土壤有效态氮、磷、钾的空间变异 | |
| 引用本文： | 黄智刚,胡克林,唐新莲. 红壤蔗区土壤有效态氮、磷、钾的空间变异[J]. 中国糖料, 2006, 0(1): 26-29 |
| 作者姓名： | 黄智刚 胡克林 唐新莲 |
| 作者单位： | 1. 广西大学农学院,南宁,530005;中国农业大学资源与环境学院,北京,100094 2. 中国农业大学资源与环境学院,北京,100094 3. 广西大学农学院,南宁,530005 |
| 基金项目： | 广西大学校科研和教改项目 |
| 摘 要： | 在面积约24km^2的低丘红壤蔗区中,测定了土壤表层175个土样的土壤有效态氮、磷、钾的含量,结果表明其平均含量都较高,变异系数都为中等变异强度.地统计学分析表明,各养分项目都存在中等到极强程度的空间相关性.Kriging方法生成的养分含量分布图显示,各养分项目在研究区域的空间分布上存在较大的差异,反映了局部空间的养分分布状况,可为甘蔗的精准施肥管理提供依据. |
| 关 键 词： | 蔗区 土壤有效态氮、磷、钾 空间变异 |
| 文章编号： | 1007-2624(2006)01-0026-04 |
| 收稿时间： | 2005-06-13 |
| 修稿时间： | 2005-06-13 |
Spatial Variability of Red Soil Available N, P and K in the Sugarcane Field |
|
| HUANG Zhi-gang,HU Ke-lin,TANG Xin-lian. Spatial Variability of Red Soil Available N, P and K in the Sugarcane Field[J]. Sugar Crops of China, 2006, 0(1): 26-29 | |
| Authors: | HUANG Zhi-gang HU Ke-lin TANG Xin-lian |
| Affiliation: | 1. Agricultural College, Guangxi University, Nanning 530005, China; 2. College of Resources and Environmental Sciences, China Agricultural University, Beijing 100094, China |
| Abstract: | 175 samples were collected in a sugarcane field(approximately 24 km2)in the hill region of subtropical China,and the contents of the soil available N,P and K were measured.The statistical results indicated that the mean values of the items were at a high level,and the coefficient of variation was at the medium level.The geostatistical analysis revealed that the spatial correlations of the items were moderately dependence.The maps from the Ordinary Kriging method showed that there was a greater difference among the distributing values of each item to a certain extent.The maps could reveal the distributing values of local region,and be useful to conduct optimal fertilization for planting sugarcane. |
| Keywords: | Sugarcane field Soil available N, P and K Spatial variability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |