The well-known healthy soil conditions are:
* High soil organic matter content
* Rich and diverse biomes
* The pollutant does not exceed the standard
* Good soil physical structure
However, long-term application of chemical fertilizers causes the soil humus to not be replenished in time, which will not only cause soil compaction and acidification, but also seriously lead to soil cracking.
The organic matter in the soil can significantly improve the physical and chemical properties of the soil, improve soil cultivability, increase water seepage ability, improve soil water storage, fertilizer retention, fertilizer supply, and drought and flood prevention capabilities, and increase production significantly. This is not a substitute for chemical fertilizers. .
Fertilization with organic fertilizers as the mainstay and chemical fertilizers as a supplement can be a good solution.
Several major effects of organic fertilizers!
1. Improve soil fertility
Microbial metabolites contain a large number of organic acids, which can dissolve trace elements such as calcium, magnesium, sulfur, copper, zinc, iron, boron, molybdenum and other essential mineral elements for plants, and can be directly absorbed and utilized by plants. The organic matter in the organic fertilizer increases the organic matter content in the soil, so that the soil cohesion is reduced, and the soil forms a stable aggregate structure. After using organic fertilizer, the soil will become loose and fertile.
2. Improve soil quality and promote the reproduction of soil microorganisms
Organic fertilizers can make the microorganisms in the soil multiply. These beneficial microorganisms can decompose the organic matter in the soil, increase the soil aggregate structure, improve the soil composition, and also make the soil fluffy and soft, and the nutrients and water are not easily lost, which increases the soil storage. Water storage capacity to avoid and eliminate soil compaction.
3. Provide comprehensive nutrients needed by crops. Organic fertilizers contain a large number of nutrients and trace elements needed by plants. Organic fertilizer is decomposed in the soil and can be transformed into various humic acids. It is a kind of high molecular substance, which has a good adsorption effect on heavy metal ions, which can effectively reduce the poisoning of heavy metal ions to crops and prevent them from entering plants. , And protect the rhizomes of humic acid substances.
4. Enhance the ability of crops to resist diseases, droughts and floods
Organic fertilizer contains a variety of trace elements, antibiotics, etc., which can enhance the resistance of crops and reduce or prevent the occurrence of diseases. After the organic fertilizer is applied to the soil, it can enhance the water storage capacity of the soil, and in the case of drought, it can enhance the drought resistance of crops.
5. Improve food safety and greenness
Since there are various nutrients in organic fertilizers, and these substances are completely non-toxic, harmless, and non-polluting natural substances, this provides the necessary conditions for the production of high-yield, high-quality, and pollution-free green food.
6. Reduce nutrient loss and improve fertilizer utilization
7. Increase crop yields
The beneficial microorganisms in the organic fertilizer use the organic matter in the soil to promote plant elongation and growth, promote fruit maturity, promote flowering and fruit setting, increase the number of flowering, fruit retention, increase yield, make the fruit plump, fresh and tender, and can be marketed early. To increase production and income.
The benefits of organic fertilizers with chemical fertilizers:
1. Chemical fertilizer has high nutrient content and fast fertilizer effect, but the duration is short. Organic fertilizer is just the opposite. The mixed use of organic fertilizer and chemical fertilizer can complement each other and meet the nutrient needs of crops in each growth period.
2. After chemical fertilizer is applied to the soil, some nutrients are absorbed or fixed by the soil, which reduces the availability of nutrients. When mixed with organic fertilizers, the contact surface of chemical fertilizers and soil can be reduced, and the effectiveness of nutrients can be improved.
3. General chemical fertilizers have high solubility, which causes high osmotic pressure on the soil, and affects the absorption of nutrients and water by crops. Mixing with organic fertilizer can overcome this drawback and promote the absorption of nutrients and water by crops.
4. If the soil is only applied with acidic fertilizers, after ammonium is absorbed by plants, the remaining acid roots combine with hydrogen ions in the soil to form acid, which will increase the acidity and increase soil compaction. If mixed with organic fertilizer, it can improve the buffering capacity of the soil, effectively adjust the pH, so that the acidity of the soil will not increase.
5. The mixed use of organic fertilizer and chemical fertilizer can provide the vitality of microorganisms, thereby promoting the decomposition of organic fertilizer. The activities of soil microorganisms can also produce vitamins, biotin, nicotinic acid, etc., increase soil nutrients, improve soil vitality, and promote crop growth.
Thinking and Choice of Modern Agriculture
Due to the intensive use of agricultural resources, the application of organic fertilizers alone cannot meet the nutrient requirements of high-yield crops. Therefore, organic fertilizers and chemical fertilizers should be combined with reasonable application of fertilizers, and their respective advantages should be used to achieve the best effect of increasing crop production and income. According to the different needs of food crops and fruit and vegetable crops, according to crop yield, quality and price expectations and fertility of arable land, we should continuously summarize experience and determine the application ratio of scientific, reasonable and practical organic fertilizer and chemical fertilizer to ensure that agricultural products can get more Output benefits.
Disclaimer: Part of the data in this article is for reference only.
Post time: Sep-16-2021