What is the function of a seed drill?

A seed drill plays a crucial role in modern agriculture by sowing seeds in a precise manner, ensuring they are placed at the correct depth and spacing in the soil. This method promotes optimal germination and growth by providing seeds with the appropriate conditions, such as moisture and nutrient access. When seeds are sown too shallow, they might be exposed to environmental conditions that could inhibit germination, while sowing them too deep could prevent them from getting the necessary light and warmth.

Choosing a seed drill for this purpose helps in efficient planting, as it allows for uniform seed distribution across the field. This not only enhances crop yield but also reduces seed waste, as opposed to broadcasting seeds randomly, which can lead to overcrowding or under-planting in certain areas. Consequently, a seed drill contributes significantly to sustainable farming practices by improving efficiency and resource management.

The other options, such as harvesting crops, applying pesticides, or irrigating fields, pertain to different agricultural processes and equipment. Each of these serves distinct functions that do not involve the specific task of sowing seeds with precision.