Top dressing 第1页

ACCUMULATION, DISTRIBUTION AND UTILIZATION OF TOP DRESSING N-FERTILIZER
BY  15N TRACER METHOD IN FLUE-CURED TOBACCO GROWING ON YELLOW SOILS Nitrogen Use Efficiency of Base Fertilizer and Top Dressing in Flue-Cured Tobacco in Rainy Regions Effects of fertilization and plastic film mulched ridge-furrow cultivation on yield and water and nitrogen utilization of winter wheat on dryland