and concentration levels

but must be agitated before use

✅ Suppresses Poa annua growth through repeated use programs

which occurs naturally

Poa annua suppression

Sprint 138 Chelated Iron-5 lb Bag Category_Nursery & Hydroponics and concentration levelsSprint 138 is a chelated iron that will work on your plants and turf in extremely poor soil conditions up to a pH of 12. If you have poor soil but your pH isn't over 8, use Sprint 330. Iron is essential for the formation of chlorophyll, a vital component to ensure plant health. Since iron has low plant mobility, new growth in iron deficient plants often shows iron deficiency. In early stages, leaves have interveinal chlorosis where plant leaves are