Identify the main purpose of irrigation in agriculture.

The main purpose of irrigation in agriculture is to ensure growth and maximize yield. Through the provision of adequate water to crops, irrigation supports the physiological processes necessary for plant life, including photosynthesis, nutrient uptake, and growth. Consistent water supply helps maintain soil moisture levels, which is essential for seed germination and root development. With the right amount of water, plants can reach their full potential in terms of size and productivity, leading to higher crop yields.

While removing weeds, supplying nutrients, and preparing soil are all important agricultural practices, they do not encompass the primary function of irrigation itself, which is directly related to providing the necessary water for optimal plant growth and productivity. Thus, ensuring growth and maximizing yield stands out as the central objective of implementing irrigation strategies in agricultural practices.