Effects of Soil Application of Natural and Processed Oyster Shell on Physicochemical Properties of Soil and Grapevine Growth

摘要

This experiment was conducted to evaluate the soil application effects of natural and lime fertilizer of oyster shell on physicochemical properties of soil and the growth of 'Campbell Early' grapevine. The natural oyster shell contained 450,6 g-kg~(-1) of alkalinity, 449 g-kg~(-1) CaO, 1.6 g-kg~(-1) MgO, 0.38 g-kg~(-1) SiO_2 and 1.3 g - kg~(-1) salt, and was not greatly different from the processed powder of oyster shell. The pH and Ca content of soil were higher in natural oyster shell, Ca(OH)2, andCaCO_3 - MgCO_3 fertilizer treatment to soil than those of the control. Grapevine growth effect showed no difference between the control and lime fertilizer application. Consequently, soil application of natural oyster shell was value to soil improvement agent of vineyard.