本文通过土壤培养和框栽试验，探讨了硫磺与磷矿粉配合施用肥效方面的问题。
Soil culture experiment and frame experiment were carried out to study effects of application of elemental sulfur and phosphate rock.
本文通过土壤培养和框栽试验，探讨了硫磺与磷矿粉配合施用肥效方面的问题。
Soil culture experiment and frame experiment were carried out to study effects of application of elemental sulfur and phosphate rock.
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