In low fertility soils, the effects of organic materials on soil microbial biomass nitrogen was rather apparent, about 4 times of high fertility soil.
土壤肥力不同，有机物料对微生物体的影响效果不同，在低肥力土壤上的效果突出，约为高肥力土壤的4倍。
From the experimental results on the impact of crop growth, high fertility soil crops growing well, not the performance of phosphorus deficiency symptoms.
从实验结果对作物生长的影响来看，高肥力土壤的作物长势良好，没有缺磷症状的表现。
The paddy soil probably had a long history of tillage, and furthermore it had formed gley horizon and illuvium, but its fertility was not high either.
水稻土有较长耕作历史，并已形成了潜育层和潴育层，但土壤肥力并不高。
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