What are the disadvantages of livestock manure organic fertilizer?

What are the common livestock and poultry manure? What are the disadvantages of applying livestock and poultry manure organic fertilizer? What are the disadvantages of organic fertilizer for livestock and poultry manure? The following land network is briefly introduced for netizens' reference. The common manure of livestock and poultry is chicken, duck, goose manure and pigeon manure or organic fertilizer with chicken, duck, goose manure and pigeon manure as the main raw materials. Livestock and poultry manure will have adverse effects on crops and soil in varying degrees. The following farming network introduces the shortcomings of livestock and poultry manure or organic manure with livestock and poultry manure as the main raw material. The main results are as follows: 1. Livestock and poultry manure or organic fertilizer with livestock and poultry manure as the main raw material contains heavy salt, which is easy to salinize the soil, increase the soil salt concentration, increase the critical point of fertilizer effect of nutrient elements on crops, and increase the amount of fertilizer application. In serious cases, it will lead to seed non-germination, seedling burning and root burning; 2. The nitrogen in livestock and poultry manure is mainly uric acid nitrogen, and uric acid can not be directly absorbed and utilized by crops. It consumes a lot of oxygen and releases carbon dioxide when it decomposes in the soil, so it is easy to damage the roots of crops. 3. Bacillus, Escherichia coli and more than ten genera of fungi and some parasites can be detected in livestock and poultry manure, which carry more bacteria and eggs, and are easy to cause diseases and insect pests. 4. The content of trace elements in some livestock and poultry manure exceeds the standard. In livestock and poultry feed, due to the addition of a large number of trace elements such as copper, iron, zinc, manganese, cobalt, selenium and iodine, many trace elements not absorbed by livestock and poultry are accumulated in livestock and poultry feces. According to the investigation of relevant units, the heavy metal pollution in the feed used in some large and medium-sized livestock and poultry farms is relatively serious, and the contents of copper, zinc, chromium, lead and cadmium generally exceed the national feed hygiene standards or pollution-free feed production standards. in particular, toxic elements such as arsenic and mercury also exceeded the standard. 5. Most of livestock manure or organic manure based on livestock manure is acidic and easy to produce bacteria, which must be neutralized with lime to cause soil hardening. 6. Livestock manure or organic manure mainly made of livestock manure is hot and easy to burn seedlings and roots when used in high temperature weather. 7. Livestock manure or organic manure based on livestock and poultry manure needs to be used after composting, artificial and has a long cycle. 8. Livestock and poultry manure or organic manure with livestock and poultry manure as the main raw material has many impurities, great purity deviation and unstable content, which can not guarantee the nutrient content and effect of application. 9. Bacillus, Escherichia coli, fungi and some parasites in livestock and poultry manure or organic manure with livestock and poultry manure as the main raw materials, as well as fungi and some parasites from more than a dozen genera, were applied into the soil by means of organic fertilizer or washed by Rain Water and transmitted to crops, resulting in biological pollution to the soil and the impact on the health of human beings and animals. 10. the content of trace elements in livestock and poultry manure exceeds the standard, especially toxic elements such as copper, arsenic and mercury also exceed the standard, resulting in heavy metal pollution to the soil, resulting in excessive heavy metal content in vegetables and fruits, posing a threat to the safety of green food. 11. Hydrogen sulfide and other harmful gases in livestock and poultry manure volatilize to produce stench, resulting in air pollution. 12. The salt in livestock and poultry manure makes the soil salinized, resulting in the degradation of soil tillage performance. For this reason, special attention must be paid to the application of livestock and poultry manure or organic manure with livestock and poultry manure as the main raw material, regardless of the application of livestock and poultry manure or organic manure as the main raw material, improper or indiscriminate application will have adverse effects on crops, soil and the environment, so we should deepen our understanding of them and take preventive and remedial measures as soon as possible. The above is the introduction of the shortcomings of livestock and poultry manure on the farming network, if you have a better supplement, please leave a message below to let us know.