| Aimed at the situation of limited and unevenly distributed rainfall in Longdong dryland area,especially the problem of drought and low temperature during the growing period of corn,the experiment was conducted to evaluate the effects of furrow catchment and plastic mulching on the growing environment of corn and the use efficiency of rainfall.The results indicated that the mode of whole-year film-mulch cultivation could improve the moisture and heat condition of soil and increase the yield of corn in dryland.Therefore,it was the ideal cultivation mode to increase the use efficiency of rainfall and to realize high and steady yield in Longdong dryland. |