Study of classification of the soil nutrient status of citrus orchard in Hubei Province Status of soil fertility in citrus orchards of Chongqing Sanxia Reservoir Area Effects of nighttime warming on winter wheat root growth and soil nutrient availability. Study on parameters of balanced fertilization for winter wheat in cinnamon soil in Northern China Effects of combined application of organic and chemical fertilizers on the yield of peanut, soil available nutrient and biological properties in the upland red soil in subtropical China A STUDY ON LONGTERM SOIL FERTILITY MONITORING FINDINGS IN NEWLY ESTABLISHED HIGHYIELD TIMBER PLANTATIONS OF MAIN SPECIES Effect of Rotation of Leguminous Plants on Soil Available Nutrients and Physical and Chemical Properties in Continuous Cropping Potato Field Dynamic simulation of photosynthate allocation in maize organs based on functional equilibrium hypothesis. Temporal and spatial variability of soil available nutrients in arable Lands of Heyang County in South Loess Plateau Effect of combined coated control-released fertilizer on winter wheat growth and soil available nutrient Field application of hyacinth (Eichharnia crassipes.), a strong nutrient accumulating plant