Ammonium bicarbonate

Molecular formula: NH4HCO3

Sexual: colorless or white prismatic crystals with a slight ammoniacal odor.

Use: useful as a neutral fertilizer for a wide range of soils and various crops. It can also be used as the raw material for producing potassium carbonate, producing reagent carbonate, blanching, electrolyte, and producing the auxiliary material of phosphor powder. It is also used as an extractant for vitamin B1, an amination treatment agent for the intermediate phenylalanine of ampicillin, a foaming agent for foam rubbers, a buffer for tanning.

Method of administration:

1. Principles of fertilization for undissociated soil undissociated water and for first fertilizing soil and then fertilizing seedlings. Ammonium carbon is applied deeply to the soil so that it is free from soil, held by the soil particles and continuously fed to the crop. Application depth of bottom fertilizer, full-thickness application, and stratified deep application; Groove Shi and burrowing for dressing usage et al. In which ammonium carbon was applied as a base fertilizer depth in combination with a plowing raking operation, which was more convenient and effective, while the hypertrophic effect was stable. It is also more effective when applied intensively to drought crops such as wheat and maize, although attention must be paid to the appropriate amount, to prevent burning seedlings, and should be combined with irrigation to fully exert its hypertrophic effect.

2. Principles for avoiding application during high-temperature seasons and periods of high temperature. Ammonium carbons, which should be applied as far as possible in the season when the air temperature is less than 20 ◦ C and as far as possible in the day when it is low in the early and late temperatures, can obviously reduce the decomposition volatilization and improve the hypertrophic effect when applied. The application of ammonium carbon paired with other nitrogen fertilizer cultivars, such as using ammonium carbon as a base fertilizer, is advocated for low-temperature seasons, and urea, sulphur ammonium, and so on, are applied as dressing for high-temperature seasons.

Ten contraindications were applied:

1. Contrarily foliar spray. Ammonium bicarbonate is more corrosive to crop leaves and burns leaves easily.

2. Contrarily dry soil to fertilize. Soil is dried and fertilizers, even when applied deeply to cover, cannot be dissolved in time for adsorption to be utilized by the crop for absorption.

3. Avoid high-temperature fertilization. The volatility of ammonium bicarbonate is closely related to high and low temperatures, and the higher the temperature is volatilized, the more intense.

4. • avoid mixing with alkaline fertilizers. If applied mixed or simultaneously, it can lead to volatilization of nitrogen loss, loss of hypertrophic effect.

5. Avoid mixing with manure. Ammonium bicarbonate, which emits a certain concentration of ammonia, in case of contact with the manure, will cause the viable bacteria in the manure to die and lose the increasing yield of the manure.

6. Avoid use overnight after mixing with calcium superphosphate. Calcium superphosphate is more hygroscopic and will turn the mixed fertilizer slurried or agglomerated and will not be utilized.

7. Avoid mixing with urea. It would cause a short-term acidic reaction of soil solution after mixing, which would accelerate the volatilization loss of nitrogen from urea.

8. Avoid mixing with pesticides. Blending is easier to produce chemical reactions, reducing hypertrophic effects and drug efficacy.

9. Avoid use of seed manure. Ammonium bicarbonate is highly irritating and corrosive, decomposing ammonia and after seed contact, it fumigates bad seeds, and even burns seed embryos, affecting germination and emergence.

10. Avoid surface application. Ammonium bicarbonate was applied as a substrate, and 7 ― 10 cm was to be ditched or littered deep on the dry land, and side drenching water was applied on the edge of the lid; Application of a vomer and plow followed by a rake at the edge of Shuitian Yi to make manure and improve the utilization rate.

Executive Standards:GB3559-2004