Ammonium bicarbonate, I still had this fertilizer in elementary school, and the first two fertilizers in my impression are: ammonium bicarbonate and calcium superphosphate. It cannot be denied that in the early stage, ammonium carbon has brought benefits to domestic economic production. But it's not as good as you think
First of all, 1, the price is generally about 50 yuan to buy, not 35 yuan. Only nitrogen 17.1 this price is not cheap, two packs of ammonium carbonaceous can buy a low-grade compound fertilizer containing chlorine.
2, the use of ammonium carbon planted out of the crop, the quality can not be compared with the compound fertilizer, do not believe can be compared. (Unless it is the kind that only grows leaves and does not hang fruit)
3, the use of ammonium carbonitic crops to resist diseases and insect pests is poor, such as in rice, borers and planthoppers will be a lot of trouble. (You can experiment with rice, only with ammonium carbonitride borers and planthoppers will erupt, and the number of blight is unimaginable, it can not be compared with the field where compound fertilizer is applied), the result is that the cost of pesticides has increased, not to mention, but also polluted the environment.
4, ammonium carbon is able to kill some nematodes, ants, but it is the first major murderer to kill frogs, destroying an important link in the ecological chain. Moreover, the large amount of ammonium carbon is a blow to the ecological environment of the field, and various insects such as earthworms, yellow flies, fish and shrimp, are all dead in large areas. (When we were young, we dug up yellow flies in paddy fields to eat, and after the ammonium carbon was fielded, it was almost extinct)
5, ammonium carbon is not a long-term fertilizer, the yield of crops planted with it is not high, easy to lodging. So a lot of people have discarded it and used compound fertilizer. Especially peanuts and the like
6, who said that ammonium carbon is non-toxic and harmless, we sell fertilizer most afraid of it, smoke you to death! It was so hot that the eyes could not be opened, and the volatilizing ammonia gas burned the skin and throat. You come and help me guard the warehouse, and I'll give you double your salary. The production process of ammonium carbon is the use of a large amount of coal, the finished product placed in the warehouse to pollute the environment, applied to the field, affecting the ecology. When it is sold, people and gods are indignant! Spicy and heavy and laborious and lumpy and rotten packaging also tmd losses.
7, the matter of smoking crops, affecting the relationship between neighbors, let's not mention it, everyone knows this.
8, ammonium carbon is after all a single nitrogen fertilizer, the agricultural products grown can not be compared with other crops in terms of yield and quality. Mixed with other fertilizers, time-consuming and laborious and inconvenient (ammonium carbon is powdery and a little wet, not granular, mixed application is very troublesome) and the process is spicy, sour.
9, work efficiency problems, such as: rice bottom fertilizer with ammonium carbon 40 kg + phosphate fertilizer 40 kg, first stir and then apply. A person's fertilizer is about 10 acres to 20 acres. Fertilize with granular rice BB fertilizer, 35 catties per mu, and can spread about 60 mu. In the busy time of farming, basically large households will consider using rice fertilizer.
Therefore, only suitable is the best. The application of ammonium carbonide is mainly to save money, and if it is compared with other fertilizers, there are not many defects.