The role of potassium sulfate fertilizer:
1. Potassium sulfate fertilizer is suitable for various soils, especially in neutral and alkaline soils. In some sandy loam or red soil soils, applying potassium sulfate fertilizer can supplement the potassium and sulfur required for crop growth and improve soil fertility. Potassium in potassium sulfate fertilizers is generally not adsorbed by the soil and has a high utilization rate.
2. Potassium sulfate fertilizer is applied to various crops and can quickly supplement the potassium element required for crop growth. Especially suitable for sweet potatoes, potatoes, watermelons, tobacco, and fruits and vegetables in greenhouses. It not only improves crop growth, but also enhances taste, which is not achieved by potassium chloride.
The use of potassium sulfate can also improve the quality of garlic. Because garlic loves sulfur, the use of potassium sulfate can enhance the flavor of garlic and promote bulb growth.
3. After the use of potassium sulfate fertilizer, it is beneficial to improve the stress and cold resistance of crops.
The use of potassium sulfate fertilizer:
Potassium sulfate fertilizer is more expensive than potassium chloride and should be prioritized for use on crops that avoid chlorine, such as sweet potatoes, potatoes, watermelons, and other crops.
Potassium sulfate fertilizer is mainly used for base fertilizer, seed fertilizer, and topdressing, and the amount of fertilizer required varies depending on the crop. Potassium sulfate moves less in the soil and performs better as a base fertilizer than as a topdressing. When applying base fertilizer, potassium sulfate fertilizer should be combined with nitrogen and potassium fertilizers, usually using 30-40 kilograms per acre.
When potassium sulfate fertilizer is used as topdressing, the earlier the topdressing time, the higher the utilization rate. Generally, 10-15 kilograms are used per acre. Potassium sulfate can also be used for foliar spraying, with a spraying concentration of 0.2% to 0.3% for vegetables.
When applying potassium sulfate fertilizer at the root, it is best to cover the soil deeply and use it in combination with nitrogen fertilizer, phosphorus fertilizer, and medium and trace elements to achieve the effect of increasing yield.
Potassium fertilizer includes potassium sulfate fertilizer, potassium nitrate fertilizer, and potassium chloride fertilizer, and there are also differences in their use. For example, when planting fruits and vegetables in greenhouses, potassium sulfate and potassium nitrate are mainly used, which is beneficial for the expansion of the fruit. However, during the color changing period, potassium sulfate should be used, which is beneficial for the color changing of the fruit and improves its marketability.
