腐植酸多功能可降解黑色液态地膜的应用研究

Application Research of the Humic Acid Multifunctional Degradable Black Liquid Mulching Film

对腐植酸多功能可降解黑色液态地膜进行了试验室盆栽试验和大田试验,通过应用表明,土壤表面喷洒系列液态地膜,可在地表面形成一层黑褐色土膜,提高土壤湿度,减少土壤水分蒸发,降低0～50cm土体中的盐分含量,增加土壤肥力,促进植物生长。通过对照表明,系列液态地膜对农作物的效果与不施加地膜相比具有明显的抗旱、增温作用和早熟增产效果,与塑料地膜相比效果相当,但液态地膜喷施后40～60天逐渐降解,2～3个月降解为腐植酸类(有机肥),没有白色污染;翻压入土后,可以改良土壤团粒和改善土壤通透性。

Carrie on the bonsy experiment and the big field experiment to the multifunctional degradable black liquid mulching film. By the application, it indicated that if sprayed the series liquid mulching film on the soil surface, it might form one brown soil membrane on the surface. The brown soil membrane can enhance humidity, reduce the evaporation of soil＇ s moisture, reduce the salinity content in 0 - 50 cm soil body, increase soil fertilityand promote the growth of plants. It indicates that, through the comparison, the series liquid mulching film has many advantages. Comparing with not using the mulching film, the series liquid mulching film can combat drought and increase the warm obviously, and it can make the crops precocity and increase it＇s production. Comparing with plastic mulching film, their effects are quite. But the black liquid mulching film can degrade gradually latter 40 - 60 days. There is no white pollution, because it degrades to humic acid in 2 - 3 months. What＇s more, it can improve the soil pellet and modify the soil permeability, by pressing it into earth.