Spatial distribution pattern of water chestnut beetle (Galerucella birmanica Jacoby) STUDY ON THE BIONOMICS OF NORBANUS AIOLOMORPHI YANG ET WANG Spatial Distribution and Variation Pattern of Soil Fertility at Different Altitude on South Slope in Qinling Mountains Spatial distribution pattern of Populus euphratica and P. pruinosa clonal ramets in Tarim River Basin, China. Study on Root Space Distribution in Soil and Nutrient Uptake in Elephant Grass and Imperial Grass Space distribution type of Trifolium pratense on the Hongchiba grassland Characteristic Analysis of Biomass Material Flow in Log Harvesting Production Fractions of phosphorus in cultivated and vegetable soils in northern China PHOSPHORUS STATUS OF BLACK SOIL IN VEGETABLE SOIL
AFTER DIFFERENT PLANTING DURATION