Plants suffering from a lack of potassium are smaller and have a short, limp stem. In addition, you can recognise the deficiency by smaller flower tops and pale fruits. Leaves can turn yellow or die off. This starts at the edges. There may also be brown or burned spots visible. A potassium deficiency is initially visible at the older, lower leaves. This is because potassium is mobile. This means the young leaves draw the potassium from the older leaves. Potassium deficiency results in a low yield that is also of a poor quality.
To prevent a potassium deficiency, you can use our Bat Guano. This bat manure is very rich in potassium. Use one of our base nutrients (like Cocos A&B) to reduce the likelihood of a deficiency. Also keep abiotic factors in mind. These include temperature, light intensity, acidity, amount of moisture and wind strength.
To stop a potassium deficiency, you can use a liquid fertiliser with a high potassium content. Examples include Green Sensation and PK 13-14.
Potassium improves the resistance of the plant and helps strengthen the cell wall. It regulates the opening and closing of stomata. These are used to regulate the absorption of carbon dioxide, water vapor and oxygen. Proper functioning of the stomata is essential to the plant. It uses them for photosynthesis, transporting nutrients and remaining cool.
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