Key points of ammonium bicarbonate use

　　 1 , avoid leaf spray. Ammonium bicarbonate is highly corrosive to crop leaves and easily burns leaves, affecting photosynthesis, so it can not be used as fertilizer for crop surface spraying.

　　 2 , avoid dry soil application. The soil is dry, and even if it is covered, the fertilizer cannot be dissolved in time and absorbed and used for crop utilization. Only when ammonium bicarbonate is applied with a certain humidity in the soil , the fertilizer can be dissolved in time to reduce the loss of volatilization.

　　 3 , avoid high temperature application. The volatility of ammonium bicarbonate is closely related to the temperature. The higher the temperature, the stronger the volatilization, so ammonium bicarbonate should not be applied under high temperature .

　　 4 , avoid mixing with alkaline fertilizer. If the highly alkaline bicarbonate ash, lime mixed administration, or administered with them the same time, will lead to more volatile nitrogen loss, loss of fertilizer, so that a single application to ammonium bicarbonate.

　　 5 , avoid mixing with bacterial fertilizer. After the application of ammonium bicarbonate, a certain concentration of ammonia gas will be emitted. If it is in contact with the bacterial fertilizer, the living bacteria in the bacterial fertilizer will die, and the effect of increasing the productivity of the bacterial fertilizer will be lost.

　　 6 , avoid mixing with superphosphate and use overnight. The combination of ammonium hydrogen phosphate and superphosphate is better than the single application, but it should not be left for a long time after mixing , and it cannot be overnight. Because the increased hygroscopicity of the superphosphate causes the compost to become a slurry or agglomerate and cannot be used.

　　 7 , bogey and urea mixed application. Root crops can not directly absorb urea, urease only in the role of the soil, in order to be converted to be taken up after use ammonium; the ammonium hydrogen phosphate soil solution applied to the soil caused by the short acidic reaction, will accelerate the urea nitrogen Volatile loss, so ammonium bicarbonate can not be mixed with urea.

　　 8 , avoid mixing with pesticides. Ammonium bicarbonate and pesticides are chemical substances that are highly susceptible to moisture hydrolysis. Many pesticides are alkaline, and they are easy to produce chemical reactions, which reduce fertilizer efficiency and efficacy.

　　 9 , bogey and use of seed fertilizer. Ammonium bicarbonate has a strong irritant and corrosive, ran out of time after exposure to the decomposition of ammonia and seeds, will burn even smoked bad seed seed embryo, affect germination and emergence. According to the test, 12.5 kg of ammonium bicarbonate per acre was used for wheat seed fertilizer application, and the emergence rate was less than 40% . For example, ammonium bicarbonate was applied to the rice field of the rice field, and then planted, and the rotten germination rate was over 50% .

　　 10 , avoid the application of topsoil. According to the measurement, when the temperature is 29 °C, the ammonium bicarbonate applied to the topsoil loses 8.9% of nitrogen in 12 hours , while the deep application of 10 cm of cover soil loses less than 1% of nitrogen within 12 hours . In rice fields, the amount of hydrogen carbonate applied is equivalent to 10.6 kg of rice per kg of nitrogen and 17.5 kg of rice produced by deep application . Thus administration acid ammonium hydrogen carbonate as base, on dry land or to play nest ditching 7--10 cm deep application while applying the mulch side edge watering; paddy fields should be applied to the edge side plow, harrow plow after the fertilizer Into the mud, improve utilization.