Worksheet: Stars and the H-R Diagram. Background: The Hertzsprung-Russell diagram is actually a graph that illustrates the. relationship that exists between the average surface temperature of stars and their. absolute magnitude, which is how bright they would appear to be if they were al the. same distance away.
The most important time to fertilize your lawn is in the fall to help you lawn develop a strong root system. Apply 1.5 to 2.5 pounds of nitrogen per 1,000 square feet. Use a lawn fertilizer with a higher amount of nitrogen, if your grass type is Kentucky bluegrass or perennial ryegrass, or soil is sandy, or grass clippings are not returned to the lawn. Greenview recommends applying Greenview Fairway Formula Fall Fertilizer 0 Phosphate in early September.
1 The grass will be ready for your cat to eat in 10 to 14 days after sprouting, or once it has reached a height of four inches, and will last one to three weeks. 2  Continue to keep it in natural light and water daily with a spray bottle.  Do not over water, as this causes mold.