Five years later,soil physico-chemical properties of the three raw soils with different matric changed greatly,and the yield of crop showed great difference in different soils and tratments.

 
  • 三種不同母質(zhì)的生土經(jīng)過(guò)5年的熟化后,土壤理化性質(zhì)發(fā)生了很大的變化,不同土壤和處理的作物產(chǎn)量也有較大的差異。
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