Effect of Long-Term Application of Compost on Some Chemical Properties of Wheat Rhizosphere and NonRhizosphere SoilsEnglish Full Text
SHEN ALIN; LI XUEYUAN; T. KANAMORI and T. ARAO(Soil and Fertilizer Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002 China)(Depariment of Soil Science and Agricultural Chemistry, Huazhong Agriculture University, Wuhan 450070China)(Labora
Abstract: Compost of dtherent rates was applied to artificial field plots of a low humic andosol at National Agriculture Research Center （NARC） of Japan for 15 or 28 years, and their effects on the chemical properties of wheat rhisosphere soil and nonrhizosphere soil were measured.Continuous application of compost for 28 years resulted in raise of soil C, N, P, pH and exchangeable bases. The building up of organic matter in the soil occurred slowly A residual effect of the compost on soil chemical properties was still present after 13 years of no application, but this effect was weaker in comparison with that of the continuous application treatments. In the rhizosphere soil, NaHCO3-extracted P and exchangeable Ca were higher than those in the bulk soil. The removal of free organic acid slightly affected the soil pH, especially, the rhizosphere soil pH. The raise of soil pH may result from the increase of exchangeable base by the application of compost.
- Series：
(D) Agriculture
- Subject：
Crop
- Classification Code：
S512.106
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