长江中下游稻区不同水旱轮作模式和氮肥水平 对稻田CH4排放的影响
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Effects of Various Paddy-Upland Crop Rotations and Nitrogen Fertilizer Levels on CH4 Emission in the Middle and Lower Reaches of the Yangtze River
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图6. 不同轮作模式及氮肥梯度下稻季土壤氧化还原电位变化规律 |
Fig. 6. Variations of soil redox potential in rice season under different rotation systems and N fertilizer rates |
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