小麦播量与减氮对潮土微生物量碳氮及土壤酶活性的影响
石柯,董士刚,申凤敏,龙潜,姜桂英(),刘芳,刘世亮()
Effects of Wheat Seeding Rate with Nitrogen Fertilizer Application Reduction on Soil Microbial Biomass Carbon, Nitrogen and Enzyme Activities in Fluvo-Aquic Soil in Huang-Huai Plain
SHI Ke,DONG ShiGang,SHEN FengMin,LONG Qian,JIANG GuiYing(),LIU Fang,LIU ShiLiang()

图13. 不同处理不同时期作物地上部氮素积累量

Fig. 13. The above-ground nitrogen accumulation under different treatments in different crop seasons