摘要
利用土壤养分数据库,以地理信息系统(GIS)和全球定位系统(GPS)为平台,研究了三门峡烟区土壤养分的空间分布。结果表明:三门峡烟区土壤有机质含量普遍偏低,速效磷含量中等偏低,西南部土壤速效氮水平偏低。提出了三门峡烟区“增氮补磷稳钾和降氯补锌增硼”的平衡施肥建议。
Basing on soil nutrient database and the platform of GIS and GPS, the spatial distribution of soil nutrients in tobacco growing area in Sanmenxia, Henan, was studied. The results showed that organic matter was deficient throughout the area and available phosphorus was moderate and lower, and available nitrogen was lower in southwest Sanmenxia. The proposal for adequate fertilization in this area was increasing the application of nitrogen, phosphorus, boron and zinc, reducing that of chlorine, while keeping the application of potassium at normal level.
出处
《烟草科技》
EI
CAS
北大核心
2007年第2期58-62,共5页
Tobacco Science & Technology
