potassium sulphate

Potassium Sulfate

Packaging: 25 kg, 50kg bags or 1000 kg. big bags

Packaging material: New pp or pe bags

Delivery locations: Worldwide

Delivery terms: FOB, CIF, CFR

Delivery time: Up on destination

Payment terms: bank transfer, transferable letter of credit – Negotiable

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Product Description

Potassium is a very important element needed for plant growth, but it is not easily available in garden soils potassium is famously known as the HEALTH ELEMENT. Lack of potassium or its shortage affects the plants yield as well as the quality.

Even before the noticeable signs of potassium deficiency show, the plant can still be affected and suffer from hidden hunger. Potassium is also an essential cofactor in the production of ATP which is the energy molecule of the plants. Since ATP powers so many crucial chemical reactions in a plant, there is need for sufficient potassium at every stage of the plant growth.

Lack of potassium in plants makes the growth of plants stall, it also reduces the ability of plants to resist against drought and diseases, it also compromises the quality of fruits, this consequently makes the plant become yellow and they eventually die. Therefore, it is important for plants to be supplemented with potassium because it is beneficial for all plants in your garden, unless the analysis for solid suggests otherwise.

On the other hand, potassium sulphate is a good source of potassium for farms. It gives potassium in a very stable condition, the PH is neutral form. There even brands that indicate the potassium sulfate as purely organic. Organic farmers usually have limited choice when it comes to when it comes to potassium fertilizers.

For instance, formulated composts are a great source of potassium, but the potassium in this composts leaches easily when it rains heavily. Another great source of potassium is hardwood. As a matter of fact, the word POTASH refers to the act of dissolving as in water so as to use as fertilizer. However, wood ash is not ideal because it as a very high PH and can have a negative impact on alkaline soils. Other great sources of potassium include granite dusts and greensand, but unfortunately, they are easily soluble and may take a very long time to become available to the plants. If a small amount of potassium is needed, potassium chloride can be used instead but it is also soluble, the chloride content is also dangerous because it can destroy essential microorganisms. The good thing about potassium sulfate is that it get rids of all the disadvantages. Therefore, a great potassium sulfate fertilizer is the ideal choice for both organic and conventional gardeners.

All potassium sulphate fertilizers are the same. The synthetic potassium sulfate is not approved by OMRI, nor is any type of potassium sulfate fertilizer by chemical reaction or acidulation. In order to be certified organically, potassium sulfate fertilizer must be produced naturally from natural resources or mined resources that have little processing. Sadly, some of these unprocessed raw materials are highly non soluble in water, and are filled with unwanted minerals. There are only a few sources of potassium sulfate that satisfy the required conditions of solubility in water, purity and very low levels of chloride needed for garden fertilizers. If you are in doubt, it is important to inquire more from the sales staff and you should be able to know different sources of fertilizers, whether the product is approved by OMRI or not.

The GRADE of a potassium sulfate fertilizer is also imperative. Huge amounts of potassium sulfate are barely soluble and are not the best choice. The most ideal choices are reffered to as SOLUBLE FINES, which have a very small particle size of less than 0.015mm. The good thing about fine grades is that it dissolves in water more easily and is ideal for foliar sprays or irrigation. Foliar feeding is a great way to provide potassium sulfate to the plants, especially if they start to show early signs of potassium deficiency. Signs of potassium deficiency are normally seen first on the lower parts of the leaves. The margin of the leaves usually turn their color to yellow first, and then brown spot or yellow spots on the leaves. A fines potassium sulfate will stop the problem and prevent from spreading all over the plant. You also need to know that too much potassium sulfate can burn the leaves. Therefore, consider low concentrations of foliar sprays with a number of applications in required.

Direction for use of potassium sulfate for garden plants

There are over a thousand species of different plants in this world. All plants require a regular flow of water, sufficient sun light a rich, well-drained, almost acidic soil and also nutrients such as micronutrients for maximum growth. The potassium sulfate is certainly   one of the best fertilizer to use. As noted earlier, potassium sulfate is made up of potassium oxide and sulfur, which is highly soluble in water. This fertilizer proves plants with additional nutrients. These nutrients are very important to the growth of the plants, in order to produce large, healthy and colorful products.

Nutrients needs

For you to achieve the best results with your plants, you must be able to provide crucial nutrients such as phosphorus, nitrogen and potash. Many plants do not need excess fertilizer. For instance, the hibiscus flower only needs a small amount of phosphorus and thus you need to buy a fertilizer that has very low amounts of phosphorus.

Apart from the above important nutrients, there are other micronutrients that are still needed by the plants to flourish.

Out of all these micronutrients, the most important ones are potassium and sulfur. While sulfur is readily available in many fertilizers, there are some kinds of fertilizers that do not have all the necessary nutrients; they only have one or two main nutrients. For this matter therefore, make sure that the plants only get enough potassium and sulfur during the growing period. Also, make sure that you include the potassium sulfate fertilizer in your fertilizing schedule.

Importance of potassium sulfate fertilizer

Potassium sulfate contains about 50% potassium and about 17% sulfate. The sulfur that is in this compound is highly soluble in water. Potassium is a very important element that helps plants a great deal. It has so many functions in plants. It strengthens the plants by helping them use nitrogen compound efficiently. It helps the plants produce stronger stems, leaves as well as flowers. It also helps strengthen the immune of the plants, so that they are resistant to drought and diseases.

Sulfur which is soluble in water is very important because it makes the roots even stronger and it also helps the plants use proteins.


Ensure that you use potassium sulfate at the same period that you are giving your plants nitrogen fertilizer. Use potassium sulfate very well when you are applying the fertilizer into the soil. Make sure you also spray the potassium fertilizer around the plant. Additionally, do not forget to water your plants on a regular basis. Make sure your plant receives enough water so as to ensure that potassium sulfate fertilizer sinks well into the soil and that it works well while in the soil. This way, it will be able to reach deep within the roots of the plant for great uptake.


During the planting or rather the growing season, there are usually many shops that sell cheaper sources of potassium sulfate fertilizer. For the best results apply the fertilizer at the rate of one pound per every 1000 square feet. Your plants will give you the best results if you continue to apply the potassium sulfate fertilizer once in every three weeks- do this on a regular basis. However, you may manage to get away with very little nitrogen, but this depends on the quality of the soil. Do forget to apply the potassium sulfate fertilizer the same period you are applying the nitrogen fertilizer- they work great together. Spray the fertilizer every three weeks, during the entire growing season.


Of course there are many other types of fertilizers in the market. There are also cheaper versions of potassium sulfate fertilizers. But it is very important to spend extra cash to use high quality fertilizer, this way your plants will benefit from the fertilizers, and at the end of the day you will enjoy the benefits as well. Remember that extreme levels of chloride inside the soil may damage your plants.

Prices of potassium sulfate fertilizers

There are many types of potassium sulfate fertilizers, and different types of sulfate of potash have different prices.

Many customers do not enough knowledge about the various prices of the sulfate of potash. The potassium sulfate fertilizers are sold per pounds. Currently, one pound of potassium sulfate costs around $8.49. The 10 pounds package is selling at $25.99.


It is very important to make sure that you check the products that you buy. There are also counterfeit dealers out there. Therefore, when looking for potassium sulfate to buy, you should first of all ensure that it is fully certified by OMRI, and that it carries the OMRI label. Secondly, make sure the package has all the ingredients and the amounts listed on the side of the package.


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