How important is straw for yield of no-till crops on heavy soils in the low rainfall southern Mallee?

To test if no-till crops grown on clay soils in the low rainfall, southern Mallee environment would yield better if more straw could be retained on the soil surface from the previous crop.本研究旨在验证：在低降水的南部马尔利（Mallee）区域的黏质土壤上种植免耕作物（no-till crops）时，若保留更多前茬作物秸秆覆盖于土壤表面，是否可提升作物产量。