Does humic acid fertilizer belong to organic fertilizer? How do I use it? What are the precautions?

In agricultural production, fertilizers are mainly divided into organic fertilizers and inorganic fertilizers, and inorganic fertilizers are mainly chemical fertilizers. Organic fertilizers generally refer to substances rich in organic matter, such as plant residues or animal excreta after fermentation. So, does humic acid fertilizer belong to organic fertilizer? How do I use it? What are the precautions?

Does humic acid fertilizer belong to organic fertilizer?

Humic acid organic fertilizer is a kind of organic fertilizer mainly containing humic acid, which is formed by the decomposition of plant residues. It widely exists in soil, river mud and shallowly buried weathered coal, peat and lignite. Contains carbon, hydrogen, oxygen, nitrogen and other elements, there are certain fertilizers, but most of them are insoluble in water, if combined with potassium, sodium, ammonium and other substances, drying ammoniation, it is easy to be absorbed by plants as nutrients.

Second, how to use humic acid fertilizers?

1. As base fertilizer

Each mu is mixed with 300,400 kg of aqueous solution containing 0.02% humic acid and 0.05% humic acid with farm manure, or basic application of trenching and digging holes. Paddy field can be combined with land preparation irrigation.

2. Topdressing

At seedling stage and heading stage, 250 kg of aqueous solution containing 0.1% humic acid per mu is irrigated near the root system (do not touch the root system). When sodium humate or potassium humate is applied in rice fields, it can be irrigated or poured with water to lift seedlings and strong ears to promote growth and development.

3. Spraying outside the root

From the late flowering stage to the early filling stage, spraying humic acid 0.01%-0.05% aqueous solution 50-75 kg per mu with an interval of 10 days, spraying 2-3 times in a row, can make the grain full, increase the 1000-grain weight and reduce the hollowing rate. It is better to spray at 2: 6 p.m.

4. Soaking seeds

Soak seeds in an aqueous solution containing 0.01% humic acid, 0.05% humic acid, soak seeds such as vegetables and wheat for 5 hours for 10 hours, and rice and cotton for more than 24 hours. It can improve the germination rate, emergence earlier and enhance the rooting ability of seedlings.

5. Dip in seedling root

Rice, sweet potato, vegetables and other transplant crops, soak the roots with 0.05%-0.1% humic acid sodium and potassium humate solution for several hours before transplanting, or dip the seedling roots when transplanting seedlings to soak the fruit tree cuttings. Root quickly, increase secondary roots, shorten the slow seedling period, and improve the survival rate.

What matters needing attention do humic acid fertilizers have?

1. Concentration

Humic acid fertilizer and auxin play some similar, in the process of use, we should pay attention to the concentration of fertilizer, if the concentration is too high or too low, the effect on crops is not very obvious, if serious, it will also affect the growth and development of crops.

2. Temperature

Potassium humate and sodium humate are hormone fertilizers, and the general temperature should be more than 18 hours. If the temperature is higher than 38 ℃, it will accelerate the respiration of crops and reduce the accumulation of dry matter, resulting in a reduction in yield, so application should be stopped or reduced.

To sum up, humic acid fertilizer belongs to organic fertilizer. In addition, it should be noted that humic acid fertilizers can give full play to the effect of humic acid fertilizers only in places with sufficient soil moisture and good irrigation conditions.