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.
采用琼脂培养和土壤培养试验研究了根系氧化能力不同的水稻品种磷、锌的营养状况。
Results of AGAR culture and soil culture indicated that the amounts of plaque iron on rice cultivars with different oxidizing power of roots were different.
采用好气土壤培养试验，研究了尿素配施有机物料和DCD条件下土壤不同氮库的动态。
Dynamics of different soil nitrogen pools after application of urea with DCD or organic materials were studied by aerial incubation method.
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