1. The characteristics of foliar dressings are as follows: (1) Small amount and economical efficiency; (2) Enhancing root vigor and preventing premature senescence; (3) Increasing fertilizer utilization rate and reducing pollution; (4) Strong pertinence and not affected by soil environmental factors; (5) The effect is rapid and the effect is obvious; (6) The short-lived time is short, and not all fertilizers can be used for foliar dressing. 2. The main technical points for foliar fertilizer application are: (1) selecting suitable fertilizers; (2) mastering the amount of acre and spraying concentration; (3) selecting a spraying period; (4) selecting spraying time and weather; (5) mastering The number of sprays. 3. Pay attention to the foliar dressing matters: (1) The selection of foliar fertilizer should be targeted; (2) The solubility of foliar fertilizer is better, the acidity should be suitable; (3) When mixed spraying, do not blindly mix; (4) leaf The surface fertilizer should be used along with the use; (5) Pay attention to the sprayed area; (6) The foliar dressing should be combined with soil fertilization. Non-Medical Face Mask,Disposable Face Mask,Disposable Medical Face Masks,Non Sterile Medical Masks Henan Xianghe Medical Materials Co., Ltd. , https://www.xiangheweicai.com