Effect of asparagus’ cultivation years on physio-chemical properties, microbial community and enzyme activities in greenhouse Soil Effects of Different Air Temperature in Different Cropping Years on Development of Seed Endosperm and Germination Characteristics in ‘Over-expression OsPIN1a’and Wild Type Rice Effects of Relay Strip Intercropping Years between Flue-cured Tobacco and Soybean on Rhizospheric Microbes Quantities  Nicotine accumulation and distribution in tobacco under continuous cropping