Water-soluble fertilizer: It is a quick-acting fertilizer with good water solubility and no residue. It can be completely dissolved in water and can be directly absorbed and utilized by the roots and leaves of crops. The use of water and fertilizer, the use of water and fertilizer, to achieve water and fertilizer integration, its effective absorption rate is more than double the common fertilizer, reaching 80% -90%; and fertilizer efficiency, can solve the nutritional needs of high-yield crops in the rapid growth period . The water requirement of the drip irrigation system is only 30% of that of ordinary fertilizer, and the application of fertilizer can be done almost without labor, which greatly saves labor costs.
Compound fertilizer: The total amount of compound fertilizer is generally high, and there are many nutrient elements. The compound fertilizer is applied at one time, and at least two main nutrients of the crop can be supplied at the same time. For example, ammonium phosphate does not contain any useless by-products, and its anion and cation are the main nutrients absorbed by crops. The nutrient distribution of this fertilizer is relatively uniform. Compared with the powdery or crystalline unit fertilizer, the structure is tight, the nutrient release is uniform, and the fertilizer effect is stable and long. Due to the small amount of sub-components, the adverse effect on the soil is small.
the difference:
First, the nutritional ingredients.
Water-soluble fertilizer refers to a compound fertilizer that is completely soluble in water. The form is mainly divided into solid and liquid. The nutrient content is divided into a large amount of elements, medium-quantity elements and trace elements of water-soluble fertilizers. Functional water-soluble substances such as amino acids and humic acid are also commonly found on the market. fertilizer. There are not only many kinds of water-soluble fertilizers, but also various ratios, such as balanced fertilizers with high balance of nitrogen, phosphorus and potassium, high-nitrogen fertilizer, high-potassium fertilizer and high-phosphorus fertilizer. At the same time, the fertilizer itself also contains various kinds of key functions for different crop growth. Trace elements, while traditional compound fertilizers are fertilizers containing two or more elements, but the main ingredients are only NPK, and the formula and nutrient elements are relatively single.
Second, the method dosage.
The water-soluble fertilizer is widely used in various areas of China. The application methods are mainly foliar spraying, drip irrigation under the membrane, root irrigation and mountain sprinkler irrigation. It can be developed according to the characteristics of different regional planting environments. The application method, unlike the compound fertilizer, must be completely used under the soil for growing the crop. The water-soluble fertilizer is usually a concentrated powder or a liquid, and the amount of use is generally small. Taking an ordinary balanced type of water-soluble fertilizer as an example, if it is used, the amount of the required amount per acre is only about 5 KG, and the use of the compound fertilizer is at least 40 KG. about.
Third, the effect.
Water-soluble fertilizer is mainly used as top dressing for crops. The difference from other traditional top dressings such as urea is that water-soluble fertilizer is a quick-acting fertilizer. The speed of crop absorption is fast, but the duration of effect after application is relatively short, and it is only suitable for crop growth. At the peak of the fertilizer, the compound fertilizer is generally used as the initial base fertilizer for planting. The absorption and utilization rate of water-soluble fertilizer is relatively high. According to experiments, if the application method is proper, it can generally reach about 90%, up to 95%, almost all absorption, while the traditional compound fertilizer has the highest absorption and utilization rate during crop growth. Only about 60%.
advantage:
First, the nutrition is sufficient and the fertilizer effect is remarkable.
Compared with traditional compound fertilizers, the biggest advantage of water-soluble fertilizers is that they have various nutrients required for the growth of different crops, such as iron, manganese, zinc, copper and calcium. Because most of the nutrients contained in the traditional compound fertilizer formula are only nitrogen, phosphorus and potassium, it is not enough to meet the basic needs of most economic crops, and water-soluble fertilizer can not only improve specific nutrients, but also improve crop quality and reduce Physiological diseases have a great help, so at present, water-soluble fertilizers are gradually applied to the cultivation of economic crops, and the effect is remarkable.
Second, energy conservation and environmental protection, high utilization.
For the production and use of water-soluble fertilizers, the degree of pollution to the environment is lower than that of compound fertilizers. Formal water-soluble fertilizer production enterprises must have a set of production pollution purification systems that meet the standards, and with advanced production technology, the pollution generated will be few and less; the water-soluble fertilizer contains less metal elements and chlorides than traditional compound fertilizers. Avoid soil nutrient imbalance and structural damage. In the process of application, the water-soluble fertilizer not only saves agricultural water, but also greatly reduces the input of human resources, saving time and high efficiency. Because water-soluble fertilizer can change a variety of methods according to different crops, so that the fertilizer can directly contact the crops directly, reducing the waste of fertilizer, so the utilization rate is much higher than the traditional compound fertilizer.
In summary, water-soluble fertilizer is one of the hottest new types of fertilizers. Although it has significant advantages in composition, fertilizer efficiency and utilization rate compared with traditional compound fertilizers, today's water-soluble fertilizer market in China is still in its initial stage, so the terminal Users should be cautious in the process of purchasing water soluble fertilizer.
In the process of fertilization of water soluble fertilizer, in order to achieve the best effect, it is necessary to combine the characteristics of water-soluble fertilizer to master certain fertilization techniques.
1, to avoid direct application, to take a second dilution method.
Because the water-soluble fertilizer is different from the general compound fertilizer, the farmers can not use the conventional fertilization method, resulting in uneven fertilization, the phenomenon of burning seedlings, seedlings and seedlings weakening, secondary dilution to ensure uniform fertilizer, and improved fertilizer utilization. rate.
2. Strictly control the amount of fertilizer applied.
The water-soluble fertilizer has higher nutrient content than the general compound fertilizer, and the amount is relatively small. Because of its quick-acting effect, it is difficult to remain in the soil for a long time. Therefore, it is necessary to strictly control the amount of fertilizer to avoid the loss of fertilizer, that is, to reduce the economic benefits of fertilization, and to achieve the goal of high yield, high quality and high efficiency.
3. Try to use it alone or in combination with non-alkaline pesticides.
For example, when vegetables are deficient in deficiency or root growth is poor, many farmers use water-soluble fertilizers to alleviate them. Remind farmers that water soluble fertilizer should be applied alone or mixed with non-alkaline pesticides to prevent metal ions from reacting to produce sediment, causing leaf damage or phytotoxicity.
More pesticide encyclopedia, please pay attention to China Pesticide Network
(Source: Good Agricultural Resources Network)
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