Humic acid liquid fertilizer improves soil and nourishes roots, and its application method matters

Humic acid liquid fertilizer is a liquid fertilizer made with humic acid as the main raw material, combined with nitrogen, phosphorus, potassium and secondary and trace elements. Humic acid mostly comes from natural raw materials such as peat, lignite and weathered coal, and after processing it has good water solubility and activity. This type of fertilizer can be applied by flushing with water or drip irrigation, and is also often used for foliar spraying.

In terms of characteristics, humic acid liquid fertilizer supplies nutrients relatively gently, has good water solubility, and a relatively high absorption and utilization rate. Humic acid can promote the formation of soil aggregate structure, enhance the soil's water- and fertilizer-holding capacity, and also stimulate root growth, helping crops absorb nutrients better. Therefore, it is widely used on crops such as fruit trees and vegetables.

When applying it, the first thing is to master the concentration well. For foliar spraying, it should be diluted according to the product instructions before use, as too high a concentration can easily burn the leaves. For flushing or drip irrigation, it is best to apply small amounts multiple times, avoiding sensitive stages such as the crop seedling stage. It can be used together with water-soluble fertilizers, but do not mix it directly with strongly alkaline substances, so as to avoid reducing fertilizer efficiency.

Overall, humic acid liquid fertilizer has both the function of supplementing fertilizer and improving soil, and is suitable for use in the middle and late stages of crop growth or during key fertilizer-demand periods. When purchasing, pay attention to checking the humic acid content and nutrient labeling, and when storing it, avoid direct sunlight and freezing to ensure stable fertilizer efficiency.