潮褐土土壤养分的空间分布特征

Spatial Distribution of Nutrients of the Aquic Cinnamon Soils

应用主成分分析方法和地统计学方法,对河北省栾城县一15hm2试区里潮褐土全氮、全磷、有机质、速效磷、速效钾、碱解氮、NH+3-N等土壤养分含量的空间变异规律进行了定量分析。为实现土壤养分的精准管理和4-N和NO-变量平衡施肥提供了科学依据。

The characteristics of spatial variability was quantitatively analyzed for total N, total P, organic matter, available P, available K, hydrolyzed N, NH_4-N and NO_3-N of the aquic cinnamon soils in a 15ha of experimental field in Luancheng county in Hebei province by principle component analysis and geostatistical methods. The study provides an important basis for site-specific nutrient management and variable rate fertilization.