覆盖地膜要严把质量关有不少菜农只知覆盖地膜，不管地膜覆盖的质量怎样，具体有以下问题：畦面凹凸不平，地膜覆盖松散不紧，播种或栽苗的膜孔没有封严，地膜四边埋压不平。这样就使在蔬菜栽种后不久，膜下的杂草大量生长，胀破地膜，且与蔬菜争夺光、温、肥、水，从而大... Mulch mulching to strict quality There are many farmers only know that cover mulching, no matter what the quality of mulching, specifically the following problems: 畦 surface uneven, loose loose mulching, sowing or planted film hole is not sealed, Underground filming uneven. So that soon after planting vegetables, large numbers of weeds under the film growth, dilapidated film, and vegetables compete for light, temperature, fertilizer, water, and thus ...