Chemical Weathering. Chemical weathering takes place in almost all types of rocks. Smaller rocks are more susceptible, however, because they have a greater amount of surface area. Chemical reactions break down the bonds holding the rocks together, causing them to fall apart, forming smaller and smaller pieces.
Autos generally are ready to harvest sooner than photoperiod. Most autos are ready to harvest 65-90 days after being sprouted from seed. Some super autos have been bred to grow very big and can take up to 100 days before harvest.
âMany of our (professional) customers still rotate equipment every three years,â he relates. âAssuming they put on an average of 600 hours of mowing a year, they would be replacing the mower before that first large engine repair bill.â. Landscape professionals have two other options, Emmett adds.