Chicken manure has always been a very important organic fertilizer. In many areas of China, chicken manure is considered as an important fertilizer for crops, fruits, and vegetables. Usually, people also regard this fertilizer as a purely natural and pollution-free fertilizer. The fruits and vegetables raised by this fertilizer are often more popular. However, in the future, this view may need to be changed, because the actual situation is that chicken manure is a "toxic" fertilizer.
A. Why is chicken manure toxic?
In the case of the chicken industry, the use of antibiotics by chicken farmers of all sizes is a common practice. Most of these antibiotics are not absorbed by chickens, but are directly excreted with feces. When these chicken manures are used as fertilizer for fruits and vegetables, it will directly pollute the farmland. Finally, people will eat antibiotics in chicken manure by eating fruits and vegetables.
In fact, livestock and poultry fertilizers, as organic fertilizers that people have always admired, are in a very embarrassing situation, because the important source of antibiotics in farmland is it. Not only for the threat of soil, livestock and poultry fertilizers containing excessive antibiotics are used after farmland, and the pollution of groundwater is also very serious. In view of the serious situation, the authorities have begun to strictly manage this.
Recently, the state has issued standards for the detection of several antibiotics in organic fertilizers, which will be implemented in March 2017. At that time, chicken manure with excessive antibiotic content may not be sold at will, and the official may even order chicken farmers to treat chicken manure.
B, chicken manure and other organic fertilizers lead to antibiotic contamination
Organic fertilizers with livestock and poultry manure as the main raw material have become an important source of antibiotic pollution in farmland. In the current animal husbandry, antibiotics have become a necessary means of farming, especially the organic fertilizers such as chicken manure and pig manure commonly used, and the content of antibiotics is also horrific.
In order to prevent the infection of poultry, farmers often feed large doses of antibiotics, and most of these antibiotics are not absorbed. About 60%-90% of the antibiotics are discharged in the form of original drugs and metabolites. These feces are often applied directly to the field, or other forms of organic fertilizer are applied to the field. Some of this antibiotic is likely to be absorbed by the plant and eventually absorbed by the body, while the other part is enriched in the soil, giving Groundwater and other threats.
C, chicken manure and other organic fertilizers may be restricted or eliminated
As a low-cost organic fertilizer, chicken manure is still very common in China's planting industry. However, due to its low price, it often does not pay attention to antibiotics and does not deal with the problem of excessive antibiotics.
Once organic fertilizer manufacturers face the problem of antibiotic restriction, they will inevitably need to deal with antibiotics, which will lead to a significant increase in production costs, and will make such products uncompetitive. Chicken manure is only a by-product of aquaculture. Industry norms and technological innovations. Obviously, there is no way for the organic fertilizer industry to guide the upstream industry, which will inevitably lead to restrictions and elimination of chicken manure use.
D. Why are the antibiotic residues of livestock manure organic fertilizers being concerned?
The main reasons are as follows:
First, the amount of livestock and poultry manure is large. The State Environmental Protection Administration has conducted surveys of 32 provinces, autonomous regions, and municipalities directly under the Central Government, showing that livestock manure has increased to about 2.7 billion tons in 2000, and livestock manure emissions in 2010 reached 4.5 billion. Ton;
Second, the addition of antibiotics in large-scale intensive farming is widespread, resulting in soil or ecological environmental non-point source pollution and dietary safety, because antibiotics will not be completely absorbed after entering the livestock, most of them pass through the digestive tract along with livestock manure. Excreted from the body, and even through the food chain, which threatens people's diet.
This article URL: Chicken manure or will be restricted to use as fertilizer? What are the problems with animal manure?
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