土壤保墒剂DQ-1在黑龙江省西部风沙土中保水效能研究与分析

在试验室稳定蒸发条件下测试了ＤＱ－１型保墒剂在黑龙江省西部风沙土中的保墒性能。结果表明，ＤＱ－１型保墒剂可在一定程度上增加土壤持水性能并增加土壤有效持水量。在风沙土中该保墒剂施用量得当可明显增强风沙土的保墒性能；其最佳保墒阶段在该土壤中为重量含水量的１０％～２０％。ＤＱ－１型保墒剂在风沙土中施用量在５．０‰左右表现出最好的保墒效果。

RESEARCH AND ANALYSIS ON THE SOILWATER RETENTION EFFICIENCY OF THE ABSORBENT DQ-1 IN THE SANDY SOIL OF THE WEST HEILONGJIANG PROVINCE

The soil water retention properties of the absorbent of DQ-1 were tested in the sandy soil of west Heilongjiang Province under the conditions of the laboratory. The results showed that the absorbent could strengthen the sandy soil water retention and increased the available water retention of the soil in a certain extent. If the application was appropriate in quantity, the soil water retention properties would obviously improved. The best water content stage, in the untreated, was between 10%～20%. In addition, the application of 5.0‰ absorbent in the sandy soil made the ldeal effects in increasing soil moisture keeping properties.