### location | tract | field:

Lawn
* Avoid walking on frozen lawns.
* Fertilize the lawn with a slow release fertilizer
  - lawn, trees, and perennials
* Many lawns show drought symptoms because of inadequate water despire irrigation systems.
* Most lawns are combinations of Kentucky bluegrass, creeping red fescue, and perennial ryegrass
  - can get by with very little fertilization, often less than once a year
  - have trees
  - maintain shades
  - only require nitrogen to green up
  - receive twice as much water as they require for a healthy appearance
  - require a minimum of one inch of water per week
* Some lawns are thin in places.
* Some lawns create conditions
  - moist conditions
  - enhance growth
  - lead to erosion
  - require insects
* add insult to injury because grass lacks deep roots that help prevent erosion.
* also keep precious top-soil from eroding away
  - prevent soil erosion, reduce runoff and filters contaminants from rainwater
  - provide a monochromatic blanket of green
* appear to be sensitive to pool water.
* are a cultural entity
  - significant source of yard waste during the growing season
* are an additional source of nutrients and pesticides in the urban environment
  - ecological waste
  - dry when footprints remain in the grass long after being made
  - easier to establish during wet periods, when the temperature is moderately cool
  - gardens
  - home to many, many insects
* are located in backyards
  - front yards
  - golf courses
  - suburbs
  - moist fertile areas where the conditions usually support a plentiful supply of live food
* are more harmful to lakes than are toxic substances and waste derived from septic systems
  - toxic substances or waste from individual sewage systems
  - of little use to wildlife and they require extra water, fertilizer and pesticides
  - susceptible to several different diseases
  - the biggest water users in home landscapes
* are used for barbeques
  - weedings
  - useful in areas where people walk and stroll and picnic and play catch
  - wildlife deserts
* benefit from a raking to remove winter debris such as old leaves and moss.
* can absorb nutrients from decomposing grass clippings that are left on the lawn after mowing
  - do without water for a long time and turn green again when moisture is available
  - leach fertilizers, chemicals, and organic debris into the pond
* can survive with little or no fertilizer
  - without feeding, but fertilized lawns fight weeds better and look better
* comprise nearly one-quarter of urban and suburban landscapes.
* consist of whatever happens to grow in front of a house.
* do help oxygenate and cleanse our environment, just like trees and shrubs.
* eat nitrogen.
* grow at different rates depending on environmental conditions and management practices.
* grow best in soil with intermediate or loamy soils that have a mix of clay, silt, and sand
  - the spring and fall
* have problems
* is prone and vulnerable to the action of insects and pests.
* needing some lime and potassium can also benefit from wood ash.
* often look dull and brown by the end of winter
  - run right up to and under trees and shrubs
* provide safe playing surfaces for children and sports activities
  - sources
* rakes handle lawn debris such as grass clippings and leaves.
* recover from dollar spot injury when conditions are favorable for vigorous, healthy growth.
* reduce noise and improve air quality by trapping dust and pollutants
  - runoff and control erosion
  - the habitat available to wildlife
* replace native habitats, and so suburbs are less biodiverse than other areas.
* require about one inch of water once per week
  - fertilizer when they begin spring growth and again in the fall
  - more water when first planted
  - nitrogen, phosphorous and potassium in the greatest quantities
  - tremendous amounts of water
* suffer the most damage from dog urine in hot, dry weather where it sits without washing away
  - under layers of fallen leaves
* surround areas
  - homes
* take enormous amounts of water, fertilizer and energy.
* turn light green or yellow and thin out.
* use much more fertilizer and pesticides per acre than the forests and farmlands they replace.
* usually fill-in as conditions warm in spring
  - use the most water in a landscape