"A flower of a crop depends entirely on fertilizer." It is impossible to avoid the problem of fertilizer when dealing with agriculture. Fertilizer selection is the key to good crop growth. However, there are so many fertilizer choices, organic fertilizer, inorganic fertilizer, biological fertilizer, which is the most suitable for your crops, and what is the difference between these three fertilizers,How reasonable collocation can play the biggest role?
Organic fertilizer:
Mainly derived from plants and (or) animals, applied to the soil to provide plant nutrition as its main function of carbon-containing materials. Through the processing of biological substances, animal and plant wastes and plant residues, the toxic and harmful substances are eliminated, and a large number of beneficial substances are rich, including a variety of organic acids, peptides and rich nutrients including nitrogen, phosphorus and potassium.
It can not only provide comprehensive nutrition for crops, but also has long fertilizer efficiency, can increase and update soil organic matter, promote microbial reproduction, improve soil physical and chemical properties and biological activity, and is the main nutrient for green food production.
Inorganic fertilizer is mineral fertilizer,
It refers to the fertilizer produced by chemical synthesis method, also called chemical fertilizer, referred to as fertilizer. Inorganic fertilizer includes nitrogen, phosphorus, potassium, compound fertilizer, etc. It has the characteristics of simple composition, high content of effective ingredients, easy to dissolve in water, fast decomposition, easy to be absorbed by the root system, so it is called "quick-acting fertilizer".
biological bacterial fertilizer
Biological fertilizer:
It is a product that causes crops to get specific fertilizer effects due to the life activities of microorganisms, and it is a kind of fertilizer used in agricultural production. The type of beneficial microorganisms in microbial fertilizers and whether their life activities are vigorous are the basis for their effectiveness, unlike other fertilizers that are based on the form and amount of major elements such as nitrogen, phosphorus, and potassium.
Because microbial fertilizer is a living preparation, its fertilizer efficiency is closely related to the number of living bacteria, strength and surrounding environmental conditions, including temperature, moisture, pH, nutrient conditions and the exclusion of native microorganisms living in the soil.
Advantages and disadvantages of three kinds of fertilizers
Advantages:
The nutrient content is high, the fertilizer effect is fast, and the effect of increasing yield is remarkable.
Disadvantages:
Nutrients are relatively single, usually need several kinds of fertilizer application; Nutrient release speed, vertical balance supply capacity is poor; I through volatilization, leaching, fixed and other ways of loss, fertilizer utilization rate is not high; Acid, alkali, salt strong, improper application, not only unfavorable to plant growth, but also may make the soil worse, reduce soil fertility.
Advantages:
Rich in organic matter and a variety of nutrients needed by plants. Organic fertilizer is also a very excellent soil improvement and soil fertility enhancement agent, which plays a good role in improving soil structure, increasing soil nutrient capacity, enhancing soil fertilizer and water conservation capacity, regulating soil pH, promoting soil microbial activity, and improving soil nutrient effectiveness.
Disadvantages:
The nutrient concentration is low and the fertilizer supply is slow, so the effect of increasing yield is not as significant as that of chemical fertilizer.
biological bacterial fertilizer
Advantages:
It can activate the fixed nutrient elements in the soil, stimulate the growth and absorption of the root system, and reduce the amount of fertilization of the corresponding nutrient elements.
Disadvantages:
It does not contain any nutrients, nor can it supply the nutrition of crops for a long time. Because bacterial fertilizer is composed of live bacteria, it is usually avoided to direct sunlight and mixed with pesticides, and the requirements for soil temperature, humidity, pH, organic matter content and other environmental conditions are also more stringent.
After understanding their advantages and disadvantages, we can draw the following conclusion:
The effect of chemical fertilizer combined with organic fertilizer and biological bacterial fertilizer is better than that of single application. However, in order to achieve the best fertilization effect, the following issues should be paid attention to when cooperating with the application.
How to match reasonably
First, pay attention to the application time.
Organic fertilizer is slow to take effect and should be applied early. Generally, it is applied at the bottom before sowing or planting. It is best to rot before use. The effect of later topdressing is not as obvious as that of base fertilizer.
Chemical fertilizer has quick effect. It is applied about one week in advance when it is used as base fertilizer. Topdressing should be applied before the critical period of crop nutrition or the peak period of nutrient absorption to meet its needs.
Biological bacterial fertilizer can only play the role of bacteriostasis by bacteria after a large number of reproduction in the soil. Therefore, it should be applied early before planting so that it can have time to multiply and grow. It can be applied into the soil together with organic fertilizer, or it can be applied in holes before or during planting.
Second, pay attention to the application method
The main function of organic fertilizer is to improve the soil and provide nutrients at the same time. It is generally applied to the soil as a base fertilizer. Therefore, it is necessary to combine deep tillage to completely mix the soil and organic fertilizer to achieve the purpose of improving the soil. When the soil problem is serious, it can also be used in conjunction with the use of sea elves. Biostimulant can better improve the soil environment, balance nutrition, and increase soil aggregate structure.
In the base fertilizer, because the nutrients in the organic fertilizer are mainly nitrogen, the nitrogen fertilizer matched with the organic fertilizer can be applied less, 30% can be used as base fertilizer and 70% can be used as top dressing. Phosphate fertilizer and potash fertilizer can be applied as base fertilizer at one time. Phosphate fertilizer has poor mobility and poor topdressing effect in the later stage, so phosphate fertilizer should be applied into the soil as base fertilizer.
It is best to use fully soluble and quick-acting fertilizers as the main fertilizer for topdressing, such as phosphorus and potassium source reservoirs. Such fertilizers can be quickly absorbed by vegetables after decomposition and have little impact on soil.
Bio-bacterial manure can be concentrated in the planting holes or applied with organic manure due to its small amount. In the later stage, the same biological bacterial fertilizer can be applied for many times to strengthen the flora, so as to improve the ability of phosphorus and potassium solution and the effect of disease prevention.
Again, pay attention to the amount of application
Different crops at different growth stages require different amounts of fertilizer, so they cannot be applied more or less. Fertilization should be carried out according to the different fertilizer ratios of crops, and attention should also be paid to the content of nutrient elements in the soil. It is best to conduct a soil test and follow the recommendations of soil testing and formula fertilization. Source: Soil Improvement and Restoration
