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
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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
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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 |
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