Influence of Straw and Plastic-Film Mulching on Sustainable Production of Farmland

The experiments were conducted on two mulching methods on the Loess Plateau farmland, considering the dry land sustainable farming principle. The results show that the plastic-film mulching technique can result in higher soil moisture and yield within a short period; however, for a long term, this technique will result in lower soil fertilizer soil water contents, as well as lower yield. On the slope land, plastic-film mulching will increase the loss of soil and water. The other problem resulting from plastic-film mulching is the residual mulch. However, the straw mulching can increase the contents of organic and soil water. It will result in a good cycle of sustainable development of arid land farming.