英语词典
On sand the application of carborundum tube for the determination of decomposition rate of plant residues under field conditions
田间测定植物残体分解速率的砂滤管法
互联网摘选
The residual ratios of root materials of different crops measur-ed by carborundum tube method were 30%, 26%, 33% and 41% for corn, sorghum, soy bean and millet respectively.
用砂滤管测定根茬腐解残留率玉米、高粱、大豆及谷子分别为30%、26%、33%和41%。
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