Study on the Physical and Chemical Properties of Soils under the Cultivating Mode of Ecological Agriculture -the Liaocheng City as an Example
Abstract：The soil pH and electrical conductivity are affects the chemical reaction and the fertilizer important attribute of the soil. To reveal the physical and chemical properties and their correlations in soils under the mode of ecological agriculture, 32 soil profiles were set all over Liaocheng City. The results show that the distribution of pH expressed belting and patching shapes,the pH value in the west area the Liaocheng City is bigger than that in the east. The electrical conductivity in soils showed a significant grading change from southwest to northeast, the biggest value appearing in the southwest of Liaocheng City, and the smallest appearing in the northeast. The spatial distribution of nutrient in soils is complex,the organic matter and effective P distributing like belts and patches, the distribution of P and K is like the distribution of electrical conductivity expressing a grading distributing. Furthermore, the pH value in soils expressed an extremely significant inverse correlation with the concentrions of organic matter, effective N, effective P and rapidly-available K, which indicated that pH of soils influencing the content of effective N, P, K obviously. To decrease soil pH, increase the organic matter in soils is a good choice. Meanwhile, electrical conductivity increase with the increase of concentrations in N, P, K in soils, so rational fertilizing is provided.
Keywords：eco=agriculturepH valueelectrical conductivityavailable nutrientscorrelationLi-aocheng City
Publication Date：2011-04-02
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：9( 61-69 )