Why do farmer's organic fertilizers have to be decomposed? What are the hazards of unfertilized organic fertilizer? Farmyard manure generally refers to the excrement of humans and animals. Farmyard manure is a relatively economical fertilizer. When used properly, it can save a lot of money, but it needs to be reminded that Before using farmyard manure, it must be decomposed first. In addition to implementing organic fertilizer, farmers will also implement livestock manure. What harm does the unfertilized livestock manure have on crops? Let's introduce the following.
With the continuous improvement of living standards, people's quality requirements for food, fruits and vegetables are also increasing. In addition to the use of compound microbial agents, spray granulation, amino acid flushing and other organic fertilizers, farmers are paying more and more attention to the application of pigs. Organic fertilizers such as cattle and sheep manure, but in general, when farmers apply base fertilizers, they are unfertilized organic fertilizers, causing many hidden dangers to crops.
- Causes burnt roots to burn. The fermented livestock and poultry manure is applied to the farmland. Because the fermentation is not thorough, the phenomenon of “secondary fermentation†will occur. When the fermentation conditions are met, the fertilization is carried out under the activity of the microorganisms; when the fermentation site is closer to the root or the crop When the plants are small, the heat generated by the fermentation will affect the growth of the crops, causing "burning roots, burning seedlings", and in severe cases, the plants will die.
- The threat of pests and diseases. The feces contain pathogens and pests such as coliforms and nematodes. Direct use can lead to the spread of pests and diseases, and the incidence of crops. It also affects the health of people who consume agricultural products. When unfertilized organic substances are fermented in the soil, they are prone to germs. Pests cause the occurrence of plant diseases and insect pests.
- Produces a gas hazard. Unfertilized manure produces harmful gases such as methane and ammonia during the decomposition process, causing acid damage and root damage to soil and crops.
- Lead to soil hypoxia. Undecomposed manure consumes oxygen from the soil during decomposition, leaving the soil temporarily in an oxygen-deficient state, which inhibits crop growth.
- A lot of nutrients are lost. In the process of traditional dumping of manure, due to natural decomposition, wind and rain, and other reasons, the loss of nutrients such as nitrogen, phosphorus and potassium is very serious, and the general utilization rate is only 50%.
- The fertilizer effect is obviously slow. The nutrients in the unfermented and decomposed organic fertilizers are mostly organic or slow-acting, and cannot be directly absorbed and utilized by the crops. Only the decomposition and transformation into quick-acting states can be absorbed and utilized by the crops. Therefore, direct application without fermentation will slow down the fertilizer.
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