World of Turf Exam 2 Practice

Timing fertilizer when the turf is actively growing makes the most of the nutrients. For two applications a year, mid to late spring is ideal because soil warms up and growth accelerates, so the grass can quickly take up nitrogen and put it to work for new leaf production and a stronger root system. This sets up a healthy green-up and resilience as it heads into warmer months.

Late fall can lead to nutrient loss from rain or cold, and the grass isn’t growing vigorously enough to use the nutrients efficiently. Early winter is too cold for uptake, and late summer often coincides with heat stress, which can reduce uptake and increase the risk of nutrient burn or leaching.