I have this lawn fertilizers in addition to normal fertilizer, applied to the Wolf Streuwagen 330, position 4. Now, after 10 days you can already see the success. Although my lawn is already 36 years old, he looks after this additional fertilization like a new plant with turf. Not believing, dense and hardwearing like a carpet, and a green as on the advertising leaflet. Have saved me an expensive new system, or at least delayed! My Fertiliser - recommendation is after this experience: First, mow, then fertilize with "normal" fertilizer and about 4 - 5 days later again additionally with Wolf L-PM 300 re-fertilizing. Should it then no rain, water necessarily. And then wait 10 days and you will be amazed!