What impact does excessive nitrogen have on grassy lawns?

What impact does excessive nitrogen have on grassy lawns?

• A. It strengthens plant resilience against pests.
• B. It promotes healthy root growth.
• C. It can lead to increased susceptibility to diseases.
• D. It encourages better seed germination.

Answer: (C)

Excessive nitrogen can indeed lead to increased susceptibility to diseases in grassy lawns. When nitrogen levels are excessively high, it causes a rapid growth of foliage at the expense of root health and overall plant balance. This lush, dense growth can make grasses more attractive to certain pathogens and pests, creating a greater challenge for the lawn in terms of maintaining health and vigor. Additionally, with more leaf material to support, the plant may become stressed and less able to fend off disease pressures. This dynamic highlights the importance of maintaining balanced nutrient levels to promote a robust, disease-resistant lawn.

Excessive nitrogen can indeed lead to increased susceptibility to diseases in grassy lawns. When nitrogen levels are excessively high, it causes a rapid growth of foliage at the expense of root health and overall plant balance. This lush, dense growth can make grasses more attractive to certain pathogens and pests, creating a greater challenge for the lawn in terms of maintaining health and vigor. Additionally, with more leaf material to support, the plant may become stressed and less able to fend off disease pressures. This dynamic highlights the importance of maintaining balanced nutrient levels to promote a robust, disease-resistant lawn.