Avoid spraying the ammonium bicarbonate on the leaf surface has strong corrosiveness to the crop leaves, and it is easy to burn the leaves and affect the photosynthesis.
Avoid using dry soil to dry the soil. Even if covered deeply, ammonium bicarbonate cannot be dissolved and adsorbed and used for crops. Only in the case of soil with a certain humidity, the application of ammonium bicarbonate can be dissolved in time, so as not to lose volatilization.
Avoid volatilization of high-temperature application of ammonium bicarbonate is closely related to the level of temperature, the higher the temperature, the faster the volatilization, so the ammonium bicarbonate should not be applied under high temperature in the sun.
Avoid application of ammonium bicarbonate mixed with alkaline fertilizers, if mixed with alkali ash, lime, etc., or with them, will cause more loss of nitrogen volatilization, so ammonium phosphate should be applied alone.
The application of ammonium bicarbonate mixed with urea into the soil will cause the soil to become acidic in the short term and accelerate the loss of nitrogen in urea.
Avoid mixed with pesticides, ammonium bicarbonate and pesticides are susceptible to moisture hydrolysis reaction. There are many pesticides that are alkaline. The two are mixed together and are prone to produce chemical reactions that reduce the effectiveness and efficacy of pesticides.
Avoid use of ammonium bicarbonate as a seed fertilizer has strong irritating and corrosive properties. When ammonia is volatilized from the decomposition, it will smoke the seeds and even burn the embryos, which will affect germination and emergence.
The application of topsoil was determined. When the temperature reached 29°C, ammonium bicarbonate applied to the topsoil lost 8.9% of nitrogen in 12 hours. However, the loss of nitrogen within 12 hours was less if 10 cm of soil was applied deep. In the paddy fields, ammonium per aqua applied, equivalent to 10.6 kg of rice per kilogram of nitrogen can be increased; 17.5 kilograms of deep production. Therefore, the application of ammonium bicarbonate as the base fertilizer, in the dry land to ditch or play nest deep 7-10 centimeters, while applying side cover soil while pouring water; in the paddy fields should be applied side plough, plow after the hoe, so that the fertilizer into the mud ,improve the utilization. (Jiang Hongtao)
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