The pros and cons of chicken manure fertilizers
Organic fertilizer is to point to straw, cake meal, animal and poultry excrement, mushroom residue and so on through the fermented fertilizer processing. On farms, chicken manure is often used as a raw material to produce organic fertilizer, but different farmers have different views on the application of chicken manure.
Raw or dried chicken manure, or even chicken manure that is not fully decomposed, has great hidden dangers, mainly manifested in:
1. Infectious diseases and pests
Raw chicken manure contains coliform, nematode diseases and pests, not completely rotten chicken manure easy breeding ground for germs and insect pest, which will lead to the outbreak of root knot nematodes at the root of crops and directly harm the root growth.
2. Heavy metal content exceeds the standard
Chicken manure contains a high amount of copper, mercury, chromium, cadmium, lead, arsenic and other heavy metals, which will lead to excessive heavy metals in agricultural products and pollute underground water sources and soil.
3. Ferment and burn seedlings
When unfermented chicken manure is applied to the soil, it is fermented as soon as conditions are available, and the heat from the fermentation can burn the roots of crops or, in worse cases, kill them.
4. Poison gas hazards
Are fermented chicken manure will release harmful gases such as methane, ammonia, make the soil and crop produces acid and root injury. Especially in the shed, the harm is more serious.
5. Soil hypoxia
Organic matter in the process of decomposition consumes oxygen in the soil, soil temporarily in hypoxia state, inhibit the growth of crops.
6. Slow fertilizer effect
Most of the nutrients of unfermented and decomposed organic fertilizers can not be directly absorbed and utilized by crops, only when they are decomposed and transformed into fast available state can be absorbed and utilized by crops.
7. Reduce production
Successive years of use of chicken manure, a large amount of sodium chloride in the soil, will seriously affect the soil permeability and activity, abnormal plant growth, flower bud thinning, fruit does not open a reduced-production phenomenon
However, well fermented chicken manure is a good organic fertilizer and can greatly help crop growth:
1. Prevent pests
After high temperature complete fermentation of chicken manure, the parasites have been basically killed, and will also produce a variety of enzymes, can inhibit continuous cropping disease, root-knot nematode disease, fusarium wilt, bacterial wilt and other soil pest diseases.
2. High content of nitrogen, phosphorus and potassium
Chicken manure is rich in organic matter, and the contents of nitrogen, phosphorus and potassium are very high. Generally, a portion of chicken manure contains 1.63% nitrogen, 1.54% phosphorus and 0.85% potassium. Such a high content is equivalent to cow dung NPK content of 4.5-7.7 times!
3. Replenish organic matter
After full fermentation, chicken manure belongs to bio-organic fertilizer, containing a large amount of organic matter and 18 kinds of trace elements, regulating the physiological function of crops, balancing the nutrition of crops and promoting growth.
4. Improve soil environment
Fully fermented chicken manure contains a highly active community of beneficial microorganisms that keep the soil soft and improve its ability to retain water and fertilizer.
5. Green environmental protection, improve fertilizer efficiency.
The organic fertilizer completely fermented with chicken manure has no toxic side effects, is safe to crops and soil environment, and can greatly improve the use efficiency of chemical fertilizer and save cost when mixed with inorganic chemical fertilizer.
To sum up, the key to whether organic fertilizer can be applied is whether the chicken manure is completely decomposed and fermented. Investigations have found that the soil is fertile and crops grow well when fully decomposed chicken manure is applied. However, application of untreated or not completely rotten chicken manure compaction is increasingly serious, crops are suffering. Therefore, if farmers want to use their own chicken manure, it is necessary to use scientific methods to compost chicken manure to prevent soil damage and pollution of the environment.
Post time: Apr-27-2022