Aluminium Sulphate For Plants

Aluminium sulphate is a water-soluble compound that contains aluminium, sulphur, and oxygen. It is commonly used as a coagulant in water treatment plants to remove impurities from drinking water. However, it can also be beneficial for plants when applied appropriately.

When used as a foliar spray, aluminium sulphate can help lower the pH of alkaline soils, making certain nutrients more accessible to plants. This is particularly useful for crops that prefer acidic soil conditions, such as blueberries, strawberries, and azaleas. It can also help prevent magnesium deficiency in plants by increasing the availability of magnesium in the soil.

Aluminium sulphate can also be used as a soil amendment to improve soil structure and increase water retention. When added to clay soils, it can help break up the soil particles, allowing for better drainage and root growth. However, it should be noted that excessive use of aluminium sulphate can lead to soil acidification and toxicity, which can harm plant growth and development.

It is important to use aluminium sulphate properly and follow recommended application rates based on soil type and plant needs. It is also advisable to conduct a soil test before applying any amendments to ensure that nutrient imbalances are addressed appropriately.