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Potassium humate benefits farming

Potassium humate is important in agricultural production

Potassium humate is important in agricultural production ,due to Potassium humate is a high-efficiency organic potassium fertilizer, because humic acid is a biologically active preparation, which can increase soil available potassium content, reduce potassium loss and fixation, increase crop potassium absorption and utilization, and improve Soil, promote crop growth, improve crop resilience, improve crop quality, and protect agricultural ecosystems. With the deepening of the concept of balanced fertilization, the source of humic acid has been accepted by more and more people, and is expected to be high. This article will introduce the effect of potassium humate.

Potassium humate is the best “companion” for improving quality and enhancing fertilizers. In recent years, the National Agricultural Technology Extension Service Center has carried out “two highs and three lesss”, “three doses” and “three effects” in the demonstration of Potassium humate fertilizer. “The new results have fully proved the superior effect of potassium humate to enhance the efficiency of chemical fertilizers.

Potassium humate regulates soil acid and alkalinity – potassium humate has a molecular weight ranging from several hundred to millions, and contains a variety of reactive functional groups. It can be developed through a variety of processes to adapt to alkaline or acidic soils. product.

Potassium humate meets the requirements of agricultural production – potassium humate can be adapted to local conditions, meet the needs of soil production under different time and space, zone and natural environment conditions, and meet the current agricultural production status and requirements.

Potassium humate rapidly increases soil fertility – the soil organic matter is less than two or three years old, and more than one hundred years. Industrial development using potassium humate can shorten the time of decomposing organic matter, benefiting it in the current year and even benefiting in the current season.
The combination of organic and inorganic humic acid potassium is good. Potassium humate can be combined with large, medium and micro nutrients and beneficial elements. Once combined, the best state of matching can be achieved. In the case of equal nutrients, potassium humate increased by an average of 10 percentage points or more, equivalent to a net increase of 30% to 40%.

Potassium humate can repair heavy metal pollution in soil – potassium humate can not only reduce the content of heavy metal pollutants in the soil, but also improve the “self-repairing” function of the soil, which is an excellent choice for soil remediation.

Potassium humate is a climatic factor of indigenous soils. Soil humic acid potassium itself has low carbonization properties. It uses humic acid potassium fertilizer and its derivatives to feed agriculture, save energy, low carbon, reduce emissions, and increase green color. It is more effective in developing climate agriculture. .

Four advantages of Beijing carbon source power high activity humic acid potassium
First, the use of modern technology to purify the mineral source of water-soluble humic acid potassium, provides a favorable guarantee for the production of green health food, reduce environmental pollution, reduce farmers’ production costs.

Second, it can greatly increase nitrogen, dissolve phosphorus, and promote potassium in the soil, cultivate soil fertility, and promote crop root development.

Third, it can be widely applied to food crops, cash crops, oil crops and flowers, etc. It has a wide range of crops and a wide range of use concentrations.

Fourth, the combination of potassium humate and nutrients is reasonable and has a synergistic nutritional effect, which can greatly reduce the use of chemical fertilizers and pesticides.

Potassium humate is the most active element of organic matter in soil. The role of potassium humate can be summarized as “five doses”: soil improvers, fertilizer synergists, good pesticides, and antidote to pollutants. , a promoter of plant growth.

humic acid function

Potassium humate for Cr(VI) removal

Potassium humate possesses a wide variety of oxygen-containing functional groups and has good adsorption and complexion properties for many kinds of transition metal ions.

In this work, a simple and separable route had been developed to synthesize Fe3O4/graphene nanocomposite, derived from potassium humate, were employed for the effective adsorption of Cr(VI) in aqueous phase. In addition, the Fe3O4/graphene nanocomposite prepared at 600 °C (S-600) showed a maximum adsorption capacity of 280.6 mg/g for Cr(VI) and good cycling performance, which was much higher than those reported graphene-based adsorbents and other conventional adsorbents.

The adsorptive behavior was well fitted to the Langmuir isotherm model. The adsorption kinetics for removal of Cr(VI) agreed with pseudo-second-order equation, which indicates a kind of chemical adsorption. Its superior adsorption performance might be due to the effective adsorption sites at the surface and formation of FeOH2+ on the surface of Fe3O4/graphene. This work provided a promising approach for the removal of Cr(VI) from wastewater using a Fe3O4/graphene nanocomposite, which shows a huge number of application prospects.

Sodium Humate

Potassium humate is used to Desulfurize of flue gas

Flue-gas desulfurization is the main method of coal desulfurization. Potassium humate (KHA) solution was used to remove SO2 from flue gas, and the effects of the potassium humate concentration, solution temperature, SO2 concentration and oxygen content on SO2 absorption efficiency were explored.

The results showed that the desulfurization performance of potassium humate absorbent is much better than that of an equal volume of water or potassium hydroxide solution with the same initial pH. The SO2 concentration, reaction temperature and oxygen content greatly influence HEDT (high-efficiency desulfurization time).

When the concentration of potassium humate is between 0.024–0.120 g/L, HEDT increases as the potassium humate concentration increases; after desulfurization, the KHA product is poorly soluble in water and is easy to separate. Implementation of the desulfurization process by potassium humate mainly involves providing alkalinity and pH buffering agents in the desulfurization process.

structure-of-humic-acid

Iron Humate

The main aim of this work was to study the mechanisms of interaction between iron(II) ions and humic acids as a function of pH, iron concentration and various humic acids chemical properties, including the degree of humification, elemental composition, aromaticity and content of acidic functional groups. T

he results indicated that iron was bound by humic acids at pH 7 in amounts ∼2 times higher than at pH 5 (averaged capacities: 117 and 57 cmol/kg, respectively). Iron binding at pH 7 increased with increasing the total carboxylic and phenolic groups content and the degree of humification of humic acids (R-coefficients: 0.99 and 0.95, respectively).

The stability of humic acid-iron complexes at pH 7 were only slightly lower than at pH 5 due to iron hydroxides formed at pH > 5 (averaged stability constants: 5.18 and 5.26, respectively). Iron coordination mode varied depending on pH: at pH 5, the bidentate (chelate) mode dominated, whereas at pH 7 the bridging mode appeared prevalent.

The total amount of bound iron was much smaller than the content of the carboxylic and phenolic groups in humic acids, on average by ∼80 (pH 7) and ∼90.1% (pH 5) indicating the occurrence of steric effects in humic acid structure i.e. the reduction of the complexation capacity of free functional groups by adjacent groups occupied by iron and/or the formation of intramolecular aggregates with iron hindering the access of further metal ions.

At pH 5 the complexes were soluble in the iron concentration range positively correlated to carboxylic and phenolic groups content, showing the protective nature of negatively charged functional groups on the stability of the solution.

At this pH, the destabilization of the system was governed by the neutralization of humic acid charged structures by metal cations and the compression of the double electric layer.

At pH 7 the stability of the humic acid-iron solution was largely determined by the form of iron, mainly by the precipitation of metal hydroxides acting as a flocculant destabilizing the solution by co-precipitation of humic acid-iron complexes.

Method test K2O content in potassium humate

In order to optimize the determination method of potassium oxide content in potassium humate fertilizer products.

A comparison was made between the extraction method of hydrochloric acid solution and GB / T17767.3-2010 “Determination methods of organic-inorganic compound fertilizers. Part 3: Total potassium content” standard Differences in the determination method of potassium oxide.

The results show that the determination principle of the hydrochloric acid solution extraction method is the same as GB / T 17767.3-2010, except that the nitric acid-perchloric acid digestion method and sulfuric acid-hydrogen peroxide digestion method are not used in the preparation of the sample solution.

Instead, using the characteristics of humic acid precipitation, the sample was processed by extraction with hydrochloric acid solution; and the accuracy, safety and speed of this method were verified, and this was used to determine the potassium oxide content in potassium humate fertilizer products .

The development of standards provides a reference.