soil acidity 第1页

A Study On the Growth Natures and the Ecological Characteristics of Chinese Fir on the River Bank in North Jiangsu Provincer Effectiveness of alkaline fertilizer on the control of banana Fusarium wilt and regulation of soil acidity in banana orchard Soil acidity in larch plantations and its correlation with organic phosphorus types Analysis of the physical and chemical characteristics of Fujian tobacco-growing soils Effects of soil acidity on Pinus resinosa seedlings photosynthesis and chlorophyll fluorescence. Effects of soil acidity adjnstment on root growth and chemical compositions of the cured leaves in flue-cured tobacco THE SOIL ACIDITY AND NUTRIENT CONTENTS, AND THEIR CHARACTERISTICS OF SEASONAL DYNAMIC CHANGES UNDER 3 DIFFERENT FORESTS OF DINGHUSHAN NATURE RESERVE