Soil culture results showed soil available sulphur had been increased significantly after different sulphur ferti1izer were appl ied.
英
美
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土壤培育试验结果表明,不同硫肥品种施入土壤后,土壤有效硫含量明显升高,在培育1周时有效硫含量达到最高值,并随着培育时间的延长,土壤有效硫含量表现出先升高而后降低的趋势;
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海词词典,十七年品牌