三种一年两熟地区小麦免耕播种机适应性试验与分析

免耕播种是保护性耕作技术最重要的作业环节之一，为了在一年两熟旱作区选择适合的播种机来实施保护性耕作技术，对国内目前可选用的JOHN DEERE 1590型小麦免耕播种机、2BMD-12型小麦对行免耕播种机、2BMFS-6/12型带状浅旋免耕播种机在3种地表覆盖状况下进行田间播种适应性试验，结果表明：参照播种机国家标准和农业部农机试验鉴定总站对小麦免耕播种机播种质量的检测指标，3种免耕播种机在秸秆粉碎覆盖地面条件下基本上都能满足播种要求。JOHN DEERE 1590型小麦免耕播种机不适合于在直立秸秆情况下

Experiment and analyses of the adaptabilities of three wheat no-tillage drills on corn stubble in the areas with two ripe crops a year

No tillage planting is one of the important tasks in conservation tillage technique and the performance of no-tillage drills directly affect the realization of that technique. In order to select suitable no-tillage drills for areas with two ripe crops a year, suitability experiments have been done using JOHN DEERE 1590, 2BMD-12 No-Tillage Drill and 2BMFS-6/12 No-Tillage Drills in three different surface condition fields. The results of field test show that three kinds of no-tillage drills can all meet the national standards of drill testing when the corn stalks were chopped and returned to the field. JOHN DEERE 1590 No-Tillage Drill could not plant under the condition of the corn stalks standing in the field. 2BMD-12 No-Tillage Drill and 2BMFS-6/12 No-Tillage Drill with Strip Rotary Tiller can both work under three different soil surface conditions. JOHN DEERE 1590 No-Tillage Drill does not adapt to be used in China because the price of the machine is too high, the plot of China is small, working time is short, therefore, the drill capacity could not be fully realized. It should base on the field surface condition, the size of plot and the economic status and so on to select adaptive wheat no-tillage drills for areas with two ripe crops a year.