3. The film is closed. If it encounters continuous cold weather, in addition to the above-mentioned anti-freezing and warming measures, erecting scaffolding, film covering or piling should be used to tie the film to the pile to prevent cold wind attack or serious freezing damage. Yingmumu safely winters. Siemens
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Du Yingmiao antifreeze and warm measures
I. Du Ying Briefing: Du Ying is an evergreen fast-growing tree, which has strict requirements on soil and strong anti-pollution noise, making him a popular tourist in urban greening and roadside trees. In recent years, Du Yingmiao has been in short supply, the price of goods is high, and the high profit makes the Du Ying planting area of ​​our town exceed 1,500 mu, becoming the second fist variety after the town's success. However, according to our analysis of seedlings last year, Du Ying's ability to resist cold is slightly worse than that of Shannon, and it is necessary to do warm work. 2. Antifreeze measures: 1. Foliar topdressing (spraying borax or potassium dihydrogen phosphate solution), speed up the progress of Du Yingmiao lignification, and enhance the anti-freezing and anti-harm ability of Du Ying saplings. The specific use of two kinds of foliar fertilizer: Borax: The concentration of borax solution is 700-1000 times (that is, one or two borax can be added with three backpacks). In the preparation, the borax is first dissolved in a small amount of boiling water, and then diluted with cold water and mixed. Potassium dihydrogen phosphate: This solution is used at a concentration of 600 times (25 g of potassium dihydrogen phosphate per backpack) and mix thoroughly. The above two kinds of foliar fertilizer application should be selected on a cloudy day or a sunny day by spraying method, and spray the amount of water. The first spraying time is in the middle of October, and it is required to spray once every 10 days, even spraying 2-3 times. . When spraying borax or potassium dihydrogen phosphate solution, do not blindly increase the concentration to avoid fat damage. 2. Do a good job of drainage, combine the soil on the bed surface, spread the cover between the lines, and build a windproof wall to prevent freezing. The method of building the wind wall is: it is required to build a windproof wall on the west and north side of Du Ying sapling to prevent the cold wind from attacking. The windproof wall should be higher than the Du Ying sapling by more than 50 cm, and the wind curtain wall material can be used to construct the windproof wall. Do it well before the cold wave comes.
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