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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三点.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,久旱施肥还要灌水.二忌高温季节施用。碳铵在夏季施用最易分解挥发,若在苗木早期施用,温度低于20℃以下.氨挥发少,且易被苗木根系吸收,促进苗木生长。三忌粘附茎叶。碳铵粘附茎
During the management of tree seedlings, such as improper fertilization, will result in weak seedlings, seedlings withered, so the application of ammonium bicarbonate should pay attention to three points. A bogey on the soil surface .According to the determination, when the temperature 29 ℃ .Ammonium bicarbonate In the surface layer, nitrogen loss of 90% within 12 hours, and deep cover 12 hours of soil loss of nitrogen less than 1%. Therefore, carbon ammonium fertilizer for top dressing, the best ditch, buried deep hole, cover soil, long Dry fertilizer but also irrigation. Two bogey season application. Ammonium bicarbonate is most easily decomposed and volatilized when applied in the summer, and if it is applied early in the seedling, the temperature is lower than 20 DEG C, ammonia volatilization is less, and it is easily absorbed by the seedling root to promote the growth of the seedling. Three avoid sticking stems and leaves. Ammonium bicarbonate sticks stems