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1.追肥防早衰:地膜覆盖烟草,常常由于施肥水平、地力及种植品种等因素,在生育后期出现脱肥现象,影响增产效果。据1981年试验,脱肥烟田进行追肥不仅可提高单位面积产量,也可提高烟叶质量。7月中旬,每亩追施10斤硫铵的较不追肥的每亩增加收入11.5％。追肥方法多采用扎眼水追或者破膜刨坑埋施。追肥时应尽量少损坏薄膜。追肥数量应根据烟株长势和品种特性而定。2.消灭杂草:烟草地膜覆盖栽培有时会因整地质量不好,除草剂施用不当,而发生草荒,可在杂草基本
1. Top-dressing anti-premature senility: mulching tobacco, often due to fertilization levels, fertility and planting varieties and other factors, appear in the late fertilization phenomenon, affecting the yield. According to the 1981 test, top-dressing for removing fat in the tobacco fields can not only increase the output per unit area but also improve the quality of the tobacco. In mid-July, a hectare of 10 kg of ammonium sulphate per hectare did not top up 11.5% of revenue. Dressing methods and more use of eye-chasing chase or shaved planing pit buried. Top dressing should minimize damage to the film. Dressing quantity should be based on tobacco plant growth and variety characteristics. 2. Elimination of weeds: tobacco mulch cover cultivation sometimes due to poor soil preparation, improper application of herbicides, and the occurrence of grassland shortage, weeds in the basic