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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。
After three years of experiment, the average yield of plastic film wheat in Weibei increased by 16.2% -2.26%. If the intercropping of autumn (potato), the yield increase reached 57.7%. The benefit of mulching wheat was significant, reaching 6 2 81 yuan / hm2 and 10 456.7 yuan / hm2, respectively. Film wheat ridge farming, or intercropping autumn ridge for management, soil and water conservation benefits. Only ridge planting could reduce sediment by 2 8.3%, ridge-ridden residual sediment sediment reduction by 5 4.6% and ridging-interplanted potato by 86.5%. It is suggested that poplar mulching wheat and intercropping autumn can be popularized in Weibei area, which is of great significance to the implementation of the “beautiful mountains and rivers” project and peasants’ striving to get rid of poverty.