Humic acid fertilizers are based on peat soil, coal slime, and weathered seam coal containing humic acid as the key raw materials, which have undergone ammonia hydrolysis, nitrification, salt industry and other organic chemical solutions, or added nitrogen, phosphorus, potassium, nutrients and other elements. A class of organic fertilizers made of modulators, called humic acid fertilizers, in which Meijia’s income and profits are all in the classics, which can improve the soil layer, adjust the pH value of the soil layer, and increase the pH value of the soil layer. Root promotes the growth and development of rhizomes, improves the utilization rate of nutrients, improves the drought resistance of green plants, promotes the specificity of beneficial microbial species in the soil layer, expands fruit and sweetens, and improves yield and quality. How to give full play to the maximum effect of humic acid fertilizer ?How to choose a good humic acid fertilizer?

1. Bad weather: high temperature, rain, and drought are very harmful to the fertility of humic acid.

There is such a name for humic acid fertilizers: after the application of humic acid fertilizers (such as potassium humate, sodium humate), humic acid fertilizers can promote the growth and development of green plants and improve the drought resistance of crops ( drought resistance, cold resistance, disease resistance, etc.), so the application of humic acid fertilizers in extreme weather can reflect the stronger actual effect of humic acid fertilizers. The actual effect of humic acid fertilizer will still be better than that of general fertilizers. Especially after waterlogging, because the crop rhizomes cannot get sufficient inhalation, the leaves can be sprayed with potassium fulvic acid to improve the photosynthesis of leaves and plants and save the production.

2. Pay attention to the selection of humic acid fertilizers! This proposal is for your reference

First, choose humic acid fertilizer according to the application method. If it is used for flushing, irrigation or leaf spraying, it is recommended to use potassium humate, ammonium humate and other fertilizers, or choose humic acid with the least molecular weight and the greatest specificity. Potassium fulvic acid or ammonium fulvic acid is made from mineral fulvic acid that can be immediately digested and absorbed by green plants. It is especially suitable for flushing, irrigation or leaf spraying, and potassium fulvic acid has a strong ability to withstand drought; if it is used as a base fertilizer, it is recommended to choose fertilizers such as ammonium humate or nitroammonium humate, and pay attention to burying it in the soil when applying Because ammonium humate is a fusion substance of humic acid and potassium nitrate, it is very easy to evaporate, so flushing or leaf spraying is not recommended. In addition, it is not necessary to apply humic acid in the soil layer with high pH value (saline-alkali soil). sodium.

Secondly, humic acid fertilizers are selected according to crop hobbies and connection points of growth and development. Taking peach trees as an example, phosphorus and potassium fertilizers and potash fertilizers are the key to fertilizing in autumn, base fertilizers are the key to fertilizing in early spring, and phosphorus and potassium fertilizers are the key to budding and splitting. When the fruit grows, it is necessary to apply basal fertilizer, potassium fertilizer, calcium fertilizer and micro fertilizer. Therefore, when using humic acid fertilizer, it is necessary to select high nitrogen, high phosphorus, high potassium or high calcium according to the elements necessary for the growth and development stage of crops. Humic acid fertilizer; in addition, it is also necessary to combine the hobbies of crops with fertilizers. For example, some crops are potassium-loving, such as: peach trees, solanaceous vegetables and fruits, cigarettes, sweets, etc., for potassium-loving crops, humus can be applied Potassium acid fertilizer. The same is true when choosing humic acid fertilizer for crops that like phosphorus or zinc.

Also, choose humic acid fertilizers according to the type of crops and cost. Humic acid fertilizers are divided into: humic acid hydroxide fertilizer, humic acid compound (mixed) fertilizer, humic acid organic chemical fertilizer, humic acid Organic chemistry-inorganic compound fertilizer, nutrient element fertilizer in humic acid, etc. It is recommended to choose humic acid compound (mixed) fertilizer for street crops. First, it is convenient to use, and it is also cost-effective; for vegetables, fruits and peach trees, Can choose humic acid organic chemical fertilizer, humic acid organic chemical-inorganic compound fertilizer or humic acid nutrient element fertilizer, the soil organic matter in this fertilizer can be 20-45% different, which can reasonably improve the taste of crops and color; if it is used for flushing or leaf spraying, it is recommended to choose a water-soluble fertilizer containing humic acid or fulvic acid. Although this type of fertilizer is expensive, it has good effect and very good effect, so it is mostly used for higher use value. Crops with high economic development. Although humic acid can be applied in the whole growth period of crops, due to economic development considerations, it can be applied 1-2 times in each of the four critical periods of crop planting, flowering, blooming, and color change. Second, the actual effect of combined spraying in the Pengda period and the bag removal period will be better.

3. How to distinguish the pros and cons of humic acid

The pros and cons of humic acid fertilizer can be judged according to its water solubility. Put the humic acid fertilizer into the water, observe the rate of melting, whether it can all melt, and whether there is any precipitation. Generally, the main performance of cost-effective humic acid fertilizer is All are excellent.

Secondly, distinguish whether humic acid is active. Some humic acid fertilizers add humic acid raw powder with no activity or low activity level, and the humic acid fertilizer made from it has poor actual effect and slow effect. Taking phosphate rock powder as an example, although phosphate rock powder also has phosphorus components, the actual effect is relatively slow and poor, and the production and processing into phosphate fertilizer can give full play to the best actual effect. Humic acid is the same, it must be active Fertility can only be fully exerted in the future. If you see a humic acid fertilizer with a very cheap price, it is very likely that it is a humic acid fertilizer with original powder, so you must pay attention.