地膜小麦与套种的增产和减沙效益研究

The Reaserch of Increasing Production and Reducing Erode of Plastic sheet covered Wheat and Inter plant

通过三年试验 ,渭北地区种植地膜小麦一般增产 16 .2 %～ 2 2 .6 % ,若套种秋作 (马铃薯 ) ,增产幅度达5 8.7%。地膜小麦的增收效益显著 ,分别达 6 2 81元 / hm2 和 10 45 6 .7元 / hm2 。地膜小麦起垄耕作 ,或套种秋作起垄管理 ,水土保持效益明显。仅起垄种植可减沙 2 8.3% ,起垄留残茬减沙 5 4.6 % ,起垄套种马铃薯减沙 86 .5 %以上。建议在渭北地区推广地膜小麦与套种秋作 ,对实施“山川秀美”工程和农民脱贫致富均有重要意义。

According to three year’s experiment in Weibei areas, it generally shows that plaslic sheet covered wheat’s production increase from 16.2% to 22.6%, while inter plant autumn crop’s production (for example potato) can increase 58.7%. Plastic sheet covered wheat contributes to the increase of beneficial result so greatly that the income reach 6 281 Yuan per hm 2 and 10 456.7 Yuan per hm 2. Plastic sheet covered wheat ridge tillage or inter plant autumn crop ridge tillage is significant to soil and water conservation. Ridge tillage can reduce erode materials 28.3%; ridge tillage stubble field reduce erode materials 54.6%; ridge tillage potato reduce erode materials more than 86.5%. It has significant meaning in carrying out “mountain and plain elegance” project and lifting peasants from poverty for spreading plastic sheet covered wheat and inter plant autumn crop in Weibei areas.