In recent years, corn stalk returning technology has gradually gained popularity, but some farmers have not mastered this technology comprehensively. Some problems have appeared in the application, and even have negative effects. Some crops have appeared to be low in the rate of emergence of wheat, yellow seedlings, weak seedlings, and even death. Seedling phenomenon. According to the analysis, the main reasons are the imbalance of carbon and nitrogen ratio, excessive comminution of straw and loose soil, and production should be guarded against. First, anti-carbon-nitrogen ratio imbalance. The carbon-nitrogen ratio of corn stover is 65-85:1, and the ratio of carbon to nitrogen suitable for microbial activity is 25:1. Nitrogen is insufficient in the soil after returning straw to the field. Microorganisms compete with crops for nitrogen. Wheat seedlings will be yellow due to nitrogen deficiency. Thin, poor growth. Solution: After the straw is crushed, spread 50 kg of ammonium bicarbonate or 20 kg of urea per acre on the surface of the straw, and then plow. Second, anti-stalk crushed too thick. Some crushed stalks are too long and the length is more than 10 cm, which is not conducive to ploughing and affects sowing. Solution: Use a large straw crusher with a relatively large horsepower, so that the straw is finely crushed, and the rotation is deeper, and the straw is evenly mixed with the soil. Third, the soil is too loose. After the straw is returned to the field, the soil is too loose and there are many large pores. The wheat seeds cannot be in close contact with the soil, affecting the germination and growth, being not firmly rooted, and even appearing as a phenomenon of “hanging rootsâ€. To solve this problem, in addition to improving the quality of straw smash, we must pay attention to the following aspects: (1) Apply enough nitrogen, phosphorus and potassium fertilizers. (2) Improve soil moisture. (3) Improve the quality of sowing. (4) Timely suppression and watering. After wheat sowing, it was air-dried for 1 day and was pressed with Dendrobium to densify the soil. In addition, the diseased straw can not be returned directly to the field, otherwise the summer corn is prone to disease. This kind of straw should be destroyed or put into the farmland after high-temperature composting.
Feline Infectious Peritonitis (FIP), referred to as Feline Infectious Peritonitis (FIP), is a fatal abnormal immune response that occurs in cats. It is caused by the mutation of the feline coronavirus carried by cats. As a high-incidence and fatal disease of pet cats, the current incidence of feline abdominal transmission is about 10%.
The symptoms of cats are usually divided into two categories, namely wet FIP and dry FIP, of which wet FIP accounts for the majority of all cases. About 70%, manifested as abdominal pleural effusion, abnormal bulging; dry FIP cats have different symptoms, depending on the type of organ affected by the virus.
So far, all feline feline feline treatments are based on the characteristics of the disease, and GS-441524 can play a role in the treatment of feline feline disease. Therefore, the therapeutic effect of GS-441524 is obviously more ideal, the dose used is less, the treatment cycle is shorter, and the efficacy, safety and convenience of operation are all good. Because of this, GS-441524 is considered by many pet owners and veterinarians to be a magic medicine that can effectively treat feline abdominal infection.
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