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利用有机玻璃管土柱模拟田间试验的方法,研究了在滨海粉砂淤泥质土壤中加入不同厚度的半腐熟玉米秸秆肥、稻壳和河沙对提高土壤渗透性的效果。结果表明:施入河沙后的水分入渗速度和单位时间渗水量与对照差异不显著;施入稻壳后,虽然水分入渗速度和单位时间渗水量与对照相比显著提高,但远不及施入半腐熟玉米秸秆肥的效果好。改善滨海粉砂淤泥质土壤渗透效果的适宜技术为铺5 cm半腐熟玉米秸秆肥,混入0～40 cm土层。
The effects of adding semi-composted corn stalks, rice hulls and river sand with different thicknesses on the permeability of silt in the coastal sea area were studied by using pillared soil column with plexiglass tube to simulate the field experiment. The results showed that the water infiltration rate and water infiltration per unit time were not significantly different from those of the control. After the rice husk was infused, the water infiltration rate and infiltration rate per unit time significantly increased compared with the control Application of semi-corn straw fertilizer effect is good. The suitable technology to improve the infiltration effect of coastal silt and muddy soil is spreading 5 cm semi-corn stover fertilizer mixed with 0-40 cm soil layer.