Why is it critical to remove excess water from irrigation systems?

Removing excess water from irrigation systems is essential primarily because it significantly enhances plant health and helps prevent diseases. Overwatering can lead to waterlogged soil conditions, which create an anaerobic environment wherein plant roots can suffocate, leading to reduced nutrient uptake. Saturated soils also create ideal conditions for various plant diseases, including root rot and fungal infections, as pathogens thrive in overly moist environments. Properly draining excess water ensures that roots can access oxygen and nutrients while minimizing the risk of disease development, ultimately contributing to robust plant growth.

While reducing costs and labor requirements or making systems operate faster could also be benefits under certain circumstances, the primary focus in irrigation management emphasizes maintaining an optimal moisture level for plant health. Management practices aimed at controlling excess water directly relate to enhancing the efficiency and effectiveness of irrigation in supporting healthy plants.