Answer to Question 1
The plant organic matter that is not decomposed between the turfgrass and the soil
surface is called thatch. Thatch is caused by an accumulation of excess grass stems,
stolons, rhizomes, and roots in the turf. It is important to note that grass clippings do
not contribute to thatch; rather, thatch is caused by overfertilization. Therefore,
maintaining a moderate fertilization program will prevent thatch.
Answer to Question 2
Clippings should be removed when they do not readily sift down into the turf.
Controlled cold compression unit.
Schedule for Controlled Substances
Overview of a computer-controlled high-pressure common rail V-8 diesel engine.
Normal combustion is a smooth, controlled burning of the air–fuel mixture.
Skin color is a polygenic trait controlled by three or four genes, producing a wide range of phenoty
Controlled genetic crosses of pea plants