Other problems occur with soluble nitrogen fertilizers. They are carried by runoff from rain or irrigation into lakes, wells, rivers, and bays. Do not exceed one pound of nitrogen per 1000 square feet per application. Weed Problems Mowing grass to short and removing lawn clippings are among the reasons many lawns are in poor condition. The higher a lawn grass is cut, the deeper its roots grow, because grass leaf blades actually manufacture food that makes the roots grow.
Deeper roots increase grass vigor and drought tolerance.
Taller grass competes better with weeds, reducing the need for weed control. Grass clippings return nutrients to the soil, and do not cause thatch. Improve your maintenance practices to solve problems stemming from incorrect watering, fertilizing and mowing. If plants are in unsuitable places, the best solution is to replace them with ones adapted to the site. If necessary, use chemicals to minimize, not eradicate pests and their effects.