Spatial heterogeneity of soil nutrients in farmland at the southern foot of Daxinganling

doi:10.14088/j.cnki.issn0439-8114.2023.03.005

Abstract

Abstract: This study took the farmland soil of Arong Banner at the South foot of Daxinganling as the research object,to explore the spatial heterogeneity of the farmland soil nutrients in Arong Banner. The results showed that the contents of organic matter, total potassium, total phosphorus and total nitrogen in the farmland soil of Arong Banner were 47.48, 29.31,1.57, 2.27 g/kg, respectively. The nutrient content of the soil was rich and suitable for crop growth. The variability of the nutrients in the soil was between 10% and 100%, which was a moderate degree of variability, and the single factor at each point was significant, and there was significant spatial heterogeneity at each point. It provided a scientific basis for reasonably optimizing fertilization schemes, improving farming methods, realizing soil nutrient balance and improving soil fertility at various points of Arong Banner farmland, and provided theoretical support for constructing a farmland fertility evaluation system at the Southern foot of Daxinganling.

Key words: soil nutrients, spatial heterogeneity, variability, relevance, south foot of Daxinganling, Arong Banner

CLC Number:

S158.2

LIU Zhan-yong, ZHANG Jia-qian, LI Juan, ZHANG Xiang-qian, LI Ya-hua, ZHANG De-jian. Spatial heterogeneity of soil nutrients in farmland at the southern foot of Daxinganling[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(3): 25-29.

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