Methods for Improving the Survival Rate of Seedlings In addition to cultivating seedlings in relatively dry winter and spring seasons, in addition to basic revitalizing measures, certain methods of drug treatment can be selectively selected to increase the survival rate of seedlings. 1, water retention agent. The water-retaining agent has the functions of water absorption, water retention and water release, non-toxic and neutral reaction. How to use: Pour 1 kg of water-retaining agent dilution per plant, with concentration of 0.1%--0.15%, or mix the water-retaining agent with the roots in the mud; if the water source is extremely low, use 0.8% water retention for broad-leaved trees. The agent solution colonizes after rooting. 2, aspirin. Dissolve 3 grams of aspirin in 5 kilograms of warm water, dilute 2.5 kilograms of thin soil, stir in the slurry, and then apply aspirin slurry to the seedling root; pure aspirin solution to treat the whole plant The proportion of medication used is exactly the same, but the soaking time should be more than 1 minute. The prepared aspirin slurry or aqueous solution can treat 4000-5000 seedlings. 3, potassium dihydrogen phosphate. Use 1 Kg of potassium dihydrogen phosphate and 1 g of water retention agent, add 1 kg of water, add a little loess and mix the roots with mud. First dip the roots with 0.2% potassium dihydrogen phosphate solution for 15 hours, then dip with 0.8% of water-retaining agent. After planting. This method is applicable to broad-leaved trees and conifers. 4, humic acid sodium. After soaking the roots with 0.5% sodium humate solution for 12 hours, use 0.8% water-retaining agent to root the roots; or add 1 kg of water and 1 g each of sodium humate and water-retaining agent, and mix the appropriate amount of loess to prepare the mud for rooting. This law applies to broad-leaved forests. 5, ABT rooting powder. ABT 3 rooting powder 50 mg / kg - 80 mg / kg soaked roots for half an hour to 1 hour, the survival rate after planting up to 95% - 9 8%. 6, sodium fulvate. 1 g of water and 1 kg of sodium fulvate and water retaining agent are added to the water and 1 kg of water is added to the loess to make afforestation; or 0.2% of sodium fulvic acid is used to dip the root for 12 hours, and then 0.8% of water-retaining agent is used to remove the roots. afforestation. This method has been selected for use in hardwood forests.
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