In order to help everyone in-depth understanding and correct use of potassium fulvic acid in agricultural production, in the previous article, the agricultural technology small back basket is aimed at everyone who is often used in crop planting but often chooses the wrong one, using the wrong potassium fulvic acid. Functional fertilizers, focusing on "why should "potassium" be added to potassium fulvic acid? Is potassium fulvic acid potassium fertilizer? What is the difference between potassium fulvic acid and fulvic acid? Potassium fulvic acid is an acidic substance Or is it an alkaline substance? The main classification and types of potassium fulvic acid, and what are the differences between biochemical potassium fulvic acid and mineral potassium fulvic acid?".

In this article, the agricultural technology small back basket will continue to focus on introducing "what fertilizer characteristics and functional effects of potassium fulvic acid? What are the misunderstandings of potassium fulvic acid that should be avoided, and how farmers should use it correctly How to judge the quality of a potassium humate product?".

I believe that through the comprehensive and systematic introduction of these two articles, everyone will have an in-depth understanding of potassium fulvic acid, and can clearly understand how to use potassium fulvic acid well and correctly.

Well, without further ado, let's get to the point of this article!

1. What are the fertilizer characteristics and functions of potassium fulvic acid? How to correctly understand and use potassium fulvic acid, and how to avoid the misunderstanding of potassium fulvic acid?

First, potassium fulvic acid has good water solubility, absorbability, quick-acting, and high efficiency. It can be used on different types of soil and different crops, and can be used as base fertilizer and top dressing by soil application, flushing application, and drenching. Watering, root irrigation, spraying, root dipping, seed dressing, etc., can also be used as an additive ingredient with other fertilizers, drugs, etc. (such as compound fertilizers, organic fertilizers, bacterial fertilizers, control drugs, plant growth regulators, etc.) , and potassium fulvic acid is an environmentally friendly fertilizer, as long as it is used properly, it will generally not have adverse effects on soil and crops. Generally speaking, potassium fulvic acid is used in planting furrows, planting holes, or spraying, watering roots , drip irrigation and other methods will greatly improve the use efficiency of potassium fulvic acid. The method of field spreading or flooding is relatively inefficient, and the use effect is poor. Agricultural technology small back baskets are generally not recommended for everyone to use it.

Second, although potassium fulvic acid is suitable for use in most soils and most crops, it also has the best soil type and best use period. From the perspective of applicable soil types, potassium fulvic acid is more It is suitable for use in farmland with poor soil fertility, poor soil and low organic matter content, because it has the fertilizer characteristics of "supporting the weak but not the strong". From the perspective of the growth period of the crops used, potassium fulvic acid is more suitable for the physiological functions of crops. It is used in the stage of strong activity and vigorous growth, and it is also more suitable for use when the crops encounter poor growth conditions, such as the germination stage, rooting stage, colonization stage, tillering stage, flourishing branches and leaves, flower bud differentiation stage, flowering and fruit-setting stage. , Use in the expansion period of young fruit, for example, when the weather is high temperature and drought, when low temperature freezes, when water accumulates, when root growth is poor, etc. In the above cases, the effect of using potassium fulvic acid will be more obvious, because it It can play the role of "sending charcoal in the snow".

Third, although the use effect of potassium fulvic acid is good, you can't use it blindly and uncontrollably. It is recommended that you master the frequency of its use. Generally speaking, if it is used in the process of crop growth, everyone As long as it is used 2-3 times in the key periods mentioned in Article 2, too much and frequent use will not be of great benefit to crop growth. But everyone should pay attention that potassium fulvic acid is in the fruit expansion period. Try not to spray it directly on young fruits, because potassium fulvic acid is a dark liquid after being dissolved in water. If it is sprayed directly on the fruit, it will easily contaminate the fruit surface and reduce the appearance quality of the fruit. Generally, it is in the middle and late stages of fruit expansion or before the fruit begins to color. Can't use it anymore.

Fourth, the main function of potassium fulvic acid is to activate and improve soil conditions, promote the absorption of other nutrients by crops, improve the growth activity of crops, stimulate the growth of crops, and enhance the resistance of crops to various adverse growth environments. The function does not include adding a lot of nutrients to the soil and crops. Generally, it needs to be used together with other nutrient fertilizers such as nitrogen, phosphorus and potassium. It improves the absorption and utilization rate of other fertilizer nutrients by crops, so there is no need to use so many other fertilizers. .

Fifth, potassium fulvic acid is a functional fertilizer. When using potassium fulvic acid, it can neither be used directly, nor can the dosage and concentration be increased at will, otherwise it will inhibit the growth of crops in light, and will also cause crops to appear in severe cases. The situation of burning roots and burning seedlings. For example, potassium fulvic acid water-soluble fertilizer, its concentration is actually relatively high. If we use too much water or foliar spray, and the concentration is too high, it is easy to Cause the crops to burn seedlings, roots, leaves, small seedlings, weak seedlings or even dead roots and dead trees. Especially in the seedling stage of crops, the dosage must not be too large or the concentration is too high. Therefore, we use yellow rot When potassium acid is used, it generally needs to be diluted twice, and the best way to use it is "a small amount and many times". Using it too much or too frequently will not only increase the cost of use, but also be useless.

Sixth, the amount of potassium fulvic acid is small and the effect is good. It can improve the absorption capacity of crops to other nutrients. Therefore, when we use potassium fulvic acid in combination with other nutritional fertilizers (such as nitrogen, phosphorus and potassium fertilizers, etc.) , the amount of fertilizer used can be appropriately reduced by 10-15%. However, everyone should pay attention that the nutrient content of potassium fulvic acid is very small and can only promote the absorption of other nutrients by crops. We must not use it as a nutritional type. It is not recommended to use it directly as a fertilizer. It is recommended that you use it together with other conventional fertilizers (compound fertilizers, water-soluble fertilizers with a large number of elements, etc.), let alone use it as a fertilizer that can replace conventional fertilizers such as nitrogen, phosphorus and potassium. , otherwise it is you who suffers from planting losses.

7. Potassium fulvic acid is not suitable for long-term storage and shelving. Generally, it is better to use it now. Because potassium fulvic acid is stored for too long or too much, there will be problems such as moisture absorption, differentiation, and sludge. Diluted Precipitation, flocculation and other problems will also occur when the potassium fulvic acid solution is placed for a long time, especially the biochemical potassium fulvic acid is more likely to occur, and the mineral potassium fulvic acid is slightly better.