Cultivation experiments with sand filter pipe have been carried out to study the effect of different dosage of bentonite on sandy soil fertility.
在沙土上通过沙滤管培养，研究了不同膨润土用量对土壤肥力的影响。
2
The result showed that the use of bentonite and organic matter could improve the content of sandy soil water and soil organic matter. The analysis of variance showed a significant difference.