1、Foliar spraying of potassium sulfate during fruit development
Potassium sulfate (K2 SO 4) is the best source for potassium supplementation to improve citrus fruit quality. Six-time K 2 SO 4 foliar application throughout fruit development noticeably increased the fruit quality, specifically sugar accumulation.
2、Optimizing Strawberry Growth and Fruit Quality through Fertigation
Considering the importance of fertigation management in the hydroponic systems, the present study aimed to assess the frequency of fertigation and foliar application of potassium sulfate in a soilless culture of strawberries.
3、Foliar Feeding with Potassium: When and How
Foliar feeding with potassium offers a rapid and effective method to supplement this critical nutrient directly to plant leaves, improving plant health, yield, and stress resistance. This article delves into the timing, methods, benefits, and best practices of foliar feeding with potassium.
4、SOLU K 52
Targeted foliar fertilization will improve potassium uptake by the plant when potassium demand is very high or when potassium uptake by the roots is limited. In the following, we have compiled application recommendations for different crops from practice that have proven successful so far.
5、Effect of foliar application of potassium fertilizers on soybean plants
The research objective of this study was to investigate the effect of foliar application of potassium chloride and potassium sulfate fertilizers at the early growth stage of soybean under medium (6 dS/m) and high (12 dS/m) salinity stresses.
Foliar Nourishment with Different Potassium Sources to
Therefore, a wide range of farmers use potassium fertilizers such as potassium sulfate (K 2 SO 4), potassium nitrate (KNO 3), potassium chloride (KCl) and potassium carbonate (KCO 3) in huge quantities for most crops as soil applications (Hasanuzzaman et al. 2018).
(PDF) Effect of foliar potassium fertilization on yield and fruit
Two foliar sprays of potassium sulfate increased yield by 40%. A single foliar application during fruit growth stage increased yield by 29% but had no effect on yield when applied at...
Trop. Agr. Develop. p.17
Abstract The purpose of this study was to evaluate the effect of foliar spraying of Potassium Sulfate (K2SO4) on the fruit growth and quality of the low-chill early ripening peach ‘KU-PP1’.
Efficiency of foliar applications of potassium sulphate on
When it comes to nut and fruit trees, foliar applications are a fast and effective way to supply potassium during high demand growth stages. Nuts in general and walnuts in particular have the highest demand for potassium during fruit growth.
How to Apply Potassium Fertilizer Properly
This article provides an in-depth guide on how to apply potassium fertilizer properly to maximize its benefits. Potassium (K) is vital for maintaining plant vigor. Unlike nitrogen and phosphorus, it does not become part of the plant’s structural components but influences many crucial functions:
Potassium sulfate is a critical fertilizer that can significantly enhance plant growth rates and yield. proper usage is key to maximizing its effectiveness. Here are some guidelines for using potassium sulfate in foliar fertilization:
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Select the Right Potassium Sulfate Product: Various forms of potassium sulfate are available, including liquid, powder, and granular. Choose a product tailored to your crops. For example, fruit trees may require a high-potassium formulation, while vegetables might benefit more from a nitrogen-rich version.
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Timing Matters: Apply foliar fertilization during early growth stages, typically before flowering or fruiting, when plants have the highest nutrient demand. Avoid applying during hot weather, as high temperatures can reduce efficacy.
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Proper Application Technique: Spray the potassium sulfate solution evenly onto leaves, avoiding stems and fruits to prevent disease risks. For best results, apply in the morning or evening when temperatures are cooler, minimizing evaporation.
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Control Dosage: Excessive use can harm plants. Adjust dosage based on plant needs and soil fertility. Generally, 1–2 kilograms per mu (approx. 0.5–1 kg per 1,000 sqm) is sufficient.
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Safety First: Protect skin and avoid inhaling dust or fumes. If contact occurs, rinse thoroughly with water. Store and handle carefully to prevent environmental contamination.
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Combine with Other Fertilizers: While potassium sulfate is potent, it cannot replace other nutrients like phosphorus (essential for flowering and fruiting). Complement it with balanced fertilizers based on crop needs and soil tests.
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Monitor Plant Response: After application, observe for signs of overuse, such as stunted growth or yellowing leaves. Adjust dosage or methods if adverse effects occur.
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Regular Monitoring: Track plant health and soil fertility regularly to refine fertilization plans. This ensures optimal results and helps identify when additional nutrients are needed.
effective foliar application of potassium sulfate requires knowledge of crop needs, proper timing, and careful dosage. By following these guidelines, you can maximize yields while minimizing risks.

