Ammonium Sulfate
Ammonium sulfate [(NH4)2 SO4] was one of the first and most widely used nitrogen (N) fertilizers for crop production. It’s now less common but especially valuable where both N and sulfur (S) are required. Its high solubility provides versatility for a number of agricultural applications.
Production
Ammonium sulfate (sometimes abbreviated as AS or AMS) has been produced for more than 150 years. Initially, it was made from ammonia released during manufacturing coal gas (used to illuminate cities) or from coal coke used to produce steel. Today, manufacturers make it by reacting sulfuric acid with heated ammonia. To get the crystal size best suited for the application, they control the reaction conditions by screening and drying the particles until achieving the desired size. Some materials are coated with a conditioner to reduce dust and caking.
Byproducts from various industries meet most of the current demand for ammonium sulfate. For example, the nylon manufacturing process produces ammonium sulfate as a co-product. In another, certain byproducts that contain ammonia or spent sulfuric acid are commonly converted to ammonium sulfate for use in agriculture.
Although the color can range from white to beige, ammonium sulfate is consistently sold as a highly soluble crystal with excellent storage properties. As described earlier, particle size can also vary depending on the intended purpose.
Agricultural use
Growers apply ammonium sulfate primarily where they need supplemental N and S to meet the nutritional requirement of growing plants. Since ammonium sulfate contains only 21percent N, other fertilizer sources more concentrated and economical to handle and transport often make a better choice for N-deficient fields. However, it provides an excellent source of S, which supports or drives numerous essential plant functions, including protein synthesis.
Because the N fraction is present in the ammonium form of ammonium sulfate, rice farmers frequently apply it to flooded soils, since nitrate-based fertilizers are a poor choice due to denitrification losses.
A solution containing dissolved ammonium sulfate is often added to post-emergence herbicide sprays to improve their effectiveness at weed control. This practice of increasing herbicide efficacy with ammonium sulfate works particularly well when the water supply contains significant concentrations of calcium (Ca), magnesium (Mg) or sodium (Na). A high-purity grade of ammonium sulfate often works best for this purpose to avoid plugging spray nozzles.
Management practices
After addition to soil, the ammonium sulfate rapidly dissolves into its ammonium and sulfate components. If it remains on the soil surface, the ammonium may be susceptible to gaseous loss in alkaline conditions. In these situations, agronomists advise incorporating the material into the soil as soon as possible. Other options include an ammonium sulfate application before irrigation or a predicted rainfall.
Most plants can utilize both ammonium and nitrate forms of N for growth. In warm soils, microbes will rapidly begin to convert ammonium to nitrate in the process of nitrification [2 NH4+ + 3O2à 2NO3- + 2H2O + 4H+]. During this microbial reaction, acidity [H+] is released, which will ultimately decrease soil pH after repeated use. Ammonium sulfate has an acidifying effect on soil due to the nitrification process, not from the presence of sulfate, which has a negligible effect on pH. The acid-producing potential of ammonium sulfate is greater than the same N application from ammonium nitrate, for example, since all of the N in ammonium sulfate converts to nitrate, compared with only half of the N from ammonium nitrate that converts to nitrate.
Non-agricultural uses
Food companies commonly add ammonium sulfate to bread products as a dough conditioner. It’s also a component in fire extinguisher powder and flame-proofing agents. And it serves many purposes in the chemical, wood pulp, textile and pharmaceutical industries.
liquid and solid nitrogen fertilizer,
CHEMICAL
FERTILIZERS
FORMULATIONS
ENCYCLOPEDİA
is enough.
This encyclopedia has many formulas about NPK fertilizers,NP fertilizers,liquid poliar fertilizers, powder fertilizers, granulas fertilizers, micro nutrients fertilizers,macro nutrients fertilizers,chelated fertilizers etc.
All chemical fertilizers in the encyclopedia are producible easily.You need no help and no technıcal support. The encyclopedia is enough to produce chemical fertilizers itself.
CHEMICAL
FERTILIZERS
FORMULATIONS
ENCYCLOPEDIA
is written clear and understandable.
RELATED TAGS: What is nitrogen fertilizer,making amonium nitrogen fertilizers, how to make liquid potassium sulfate fertilizers, making ammonium nitrate fertilizer, properties of nitrogen fertilizers, effects of ammonium nitrate fertilizers, benefits of ammonium chloride fertilizer, advantages of ammonium chloride fertilizers, formulations of ammonium nitrogen fertilizer,compounds of nitrogen fertilizers, powder ammonium sulfate fertilizers making, properties of solid nitrogen fertilizer, urea fertilizer composition,using liquid micronutrients fertilizers, solid microelement fertilizers,using micronutrient fertilizers,plants to calcium, urea nitrogen fertilizers in agricultural, how to make microelement fertilizers,making powder micronutrient fertilizers,micro elements fertilizers,properties of ammonium fertilizers, liquid calciumammonium nitrate fertilizers, to make ammonium nitrate fertilizers, preparation of liquid nitrogen fertilizers,production of copper fertilizers, granular nitrogen fertilizer production,productions,types of chemical fertilizers,fertilizer types, ammonium sulphate fertilizers,micronutrient fertilizers, combi fertilizers, manufacturing fertilizers,how to use chemical fertilizers,foliar fertilizers,drip fertilizers, npk fertilizers, balance fertilizers, to make balance fertilizers,powder fertilizers manufacturing,granules fertilizer making,compositions of fertilizers, formulations of fertilizers, how to programme of fertilizers, using fertilizers.
E - BOOKS AND HARD BOOKS
HOW TO BUY
AGRICULTURE ENCYCLOPEDIAS AND VIDEOS
|
|
|
|
|
|