Potassium fulvic acid, a fertilizer derived from natural organic matter, has been widely used in the aquaculture sector in recent years. Its main function is to fertilize water and improve water quality, provide rich nutrients for farmed organisms, and promote their healthy growth.
First, let's take a look at the basic usage of potassium fulvic acid. When determining the dosage, it is generally recommended to use 500-1000 grams of potassium fulvic acid per mu of water surface (about 667 square meters). However, this dosage is not fixed and needs to be adjusted according to the specific farming environment. For example, factors such as water quality, water depth, breeding density and season can all affect the effectiveness of potassium fulvic acid. In the case of poor water quality or high breeding density, it may be necessary to increase the amount of potassium fulvic acid appropriately;In winter or low temperature season, due to the slowdown of biological metabolism, the use of potassium fulvic acid can be appropriately reduced.
This is followed by the process of dissolving the dilution. Sprinkle potassium fulvic acid evenly into a portion of water and stir well to dissolve it completely. In order to ensure the effective utilization of potassium fulvic acid, a dilution ratio of 1:1000-1:2000 is generally recommended. This can not only ensure the dispersion of potassium fulvic acid, but also avoid the negative impact of excessive concentration on farmed organisms.
Then there is the step of spreading evenly. The diluted potassium fulvic acid solution is evenly sprinkled on the surface of the pond, which is a very critical operation. It is best to do it in the morning or evening on a sunny day, when the sun is weaker and the wind is less, which can reduce the effect of direct sunlight and strong winds on potassium fulvic acid, so that it is better dispersed in the water body.
In the process of using potassium fulvic acid, top dressing adjustment is also required. According to the water quality and the growth of cultured organisms, the amount and frequency of potassium fulvic acid can be appropriately increased or decreased. In general, it is sufficient to use it every 7-10 days. However, this also needs to be flexibly adjusted according to the actual situation, such as the deterioration of water quality or the slow growth of farmed organisms, which may need to increase the frequency of potassium fulvic acid.
Although potassium fulvic acid is a natural and organic fertilizer, it can also have a negative impact on water quality and farmed organisms if used in excess or inappropriately. Therefore, in the process of use, we should pay close attention to the changes in water quality and the reaction of farmed organisms, and adjust the use plan in time. At the same time, it should also be combined with other water quality management measures, such as regular water change, oxygenation, disinfection, etc., to maintain a good breeding environment.
In general, the application of potassium fulvic acid in aquaculture is a scientific and delicate work, which needs to be flexibly adjusted and integrated management according to the actual situation. Only in this way can we give full play to the role of potassium fulvic acid, improve the efficiency of aquaculture, and protect our water resources and ecological environment. It is hoped that this article will help farmers to better understand and master the use of potassium fulvic acid, and contribute to the realization of sustainable and efficient aquaculture.