Taimväetamine

Taimväetamine, also known as foliar feeding, is a horticultural technique where a liquid fertilizer solution is sprayed directly onto the leaves of plants. This method allows for rapid nutrient absorption through the stomata, the small pores on the leaf surface. Unlike soil fertilization, which relies on root uptake and can be subject to soil pH and nutrient availability issues, foliar feeding bypasses these limitations.

The primary advantage of taimväetamine is its speed. Nutrients are often absorbed within hours, making it an effective way to address nutrient deficiencies quickly. This is particularly useful for crops experiencing stress from drought, extreme temperatures, or pest damage, as it can provide immediate support. It can also be a supplementary method to soil fertilization, ensuring plants receive a balanced supply of essential elements.

Commonly applied nutrients via foliar spray include nitrogen, phosphorus, potassium, and micronutrients such as iron, zinc, and manganese. The concentration of the fertilizer solution is crucial; too strong a solution can damage the leaves, while too weak may be ineffective. The timing of application is also important, often best performed during cooler parts of the day, such as early morning or late evening, to minimize evaporation and potential leaf burn. While an efficient method for quick nutrient delivery, it is generally not a substitute for a comprehensive soil fertility program, as it cannot provide the same volume of nutrients that roots can absorb over time.