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在林木幼苗管理期间,如施肥不当会造成苗弱、苗枯,因此在施用碳铵时应注意五忌。一忌施在土表层。据测定,当气温29℃时,若将碳铵施于表层,12小时内损失氮素90％;而深施盖土的,12小时损失氮素不到1％。因此,施碳铵作追肥,最好开沟、开穴深埋,盖土。久旱施肥后还要灌水。二忌高温季节施用。碳
In the management of seedlings in the forest, such as improper fertilization will result in weak seedlings, seedlings withered, so in the application of ammonium bicarbonate should pay attention to five bogey. Avoid applying on the surface of the earth. It was determined that, when the temperature was 29 ℃, if ammonium bicarbonate was applied to the surface layer, 90% of nitrogen would be lost in 12 hours, while less than 1% of nitrogen would be lost in 12 hours. Therefore, carbon ammonium fertilizer for top dressing, the best ditch, buried deep hole, covering soil. After a long time to fertilize irrigation but also irrigation. Second, avoid high temperature season application. carbon