摘要
用18个与肥力关系较为密切的因素,对潮土肥力进行综合评价。结果表明,评价潮土肥力有三个主要的综合指标;其肥力状况大致可分为三个类型。通过试验还揭示了各类型的主要肥力限制因素。分析结果和土壤的实际情况一致。
The result obtained by principal component analysis with 18 fertility factors indicated that there were 3 principal synthetic indexes of the fertility evaluation of 'Chao' soil, The soils could be classified into 3 fertility groups with 2 coodinates (first and second principal component). Experiment also showed the main fertility constraints of varying groups,
出处
《河北农业大学学报》
CAS
CSCD
北大核心
1992年第3期28-32,共5页
Journal of Hebei Agricultural University
关键词
主组元
潮土
肥力
综合指标
principal component
'Chao' soil
soil fetility
synthetic index
