How can unripe organic fertilizer do so much harm to crops?

What harm does unripe organic fertilizer do to crops?

Most farmers use farm manure in addition to machine fertilizer, but also farm manure such as livestock manure, so is immature farm manure harmful to crops? What are the hazards?

With the continuous improvement of living standards, people have higher and higher requirements for the quality of food, fruits and vegetables, in addition to the use of compound microbial agents, spray granulation, amino acid flushing and fertilization and other organic fertilizers, farmers also pay more and more attention to the application of organic fertilizers such as pig, cow and sheep manure, but in general, farmers apply base fertilizer is not mature organic fertilizer, causing a lot of hidden dangers to crops.

The main results are as follows: 1. The harm of uncooked farm feed to crops causes burning roots and seedlings. When the unfermented livestock manure is applied to the farmland, because the fermentation is not complete, the phenomenon of "secondary fermentation" will occur. When the fermentation conditions are available, under the activity of microorganisms, the manure will be fermented; when the fermentation site is close to the root or the crop plant is small, the heat generated by fermentation will affect crop growth, cause "root burning, seedling burning", and serious will lead to plant death.

2. The threat of diseases and insect pests caused by immature farm feed to crops. Feces contain coliform, nematode and other bacteria and pests, which will lead to the spread of diseases and insect pests, crop disease, and also have an impact on the health of people who eat agricultural products; when unripe organic matter is fermented in the soil, it is easy to breed germs and insect pests, leading to the occurrence of plant diseases and insect pests.

3. The harm of uncooked farm feed to crops caused by toxic gas. In the process of decomposition, immature feces produce harmful gases such as methane and ammonia, which cause acid damage and root damage to soil and crops.

4. The harm of immature farm feed to crops leads to soil anoxia. In the process of decomposition, immature manure will consume oxygen in the soil, making the soil temporarily in a state of hypoxia, which will inhibit the growth of crops.

5. A large amount of nutrient loss caused by the harm of immature farm feed to crops. In the traditional process of composting manure, due to natural decomposition, wind and rain and other reasons, the waste and loss of nutrients such as nitrogen, phosphorus and potassium is very serious, and the general utilization rate is only 50%.

6. The fertilizer effect of uncooked farm feed on crops is obviously slow. Most of the nutrients in unfermented and mature organic fertilizers are organic or slowly available, which can not be directly absorbed by crops, but can only be absorbed and utilized by crops by decomposing and transforming into rapidly available state. Therefore, direct application of unfermented fertilizer will slow down the fertilizer efficiency.

Thus it can be seen that raw manure or unripe animal manure can not be directly applied to the farmland, otherwise it will bring harm to crops. Immature farm manure does great harm to crops. I hope everyone will pay more attention to it when using it again. (organic fertilizer agrochemical encyclopedia)