Homeowner How To's
With a tape, measure the area of your planned lawn. Include these measurements
on a sketch of the lawn area with the length, width, and any unusual
features. NG Turf will be happy to help you determine the amount of turfgrass
sod you will need based on your drawing. Listed below are some sample
calculations for determining square footage.
Square Area = L X W
 |
Rectangle Area = L X W
 |
An example dividing the project in to squares and
rectangles:
Circle Area = 3.14 X R²
 |
Oval Area = 0.8 x L X W
 |
Triangle Area = ½ B X H
 |
Trapezoid Area = ½ (LA + LB) x H
 |
Installation and Soil Prep
"There is no better time to enhance a lawn's ultimate
beauty and success than by improving the soil before any planting
takes place."
Why is Good Soil Important?
For optimum growth, turfgrass needs just four things (in the proper
balance)...sunlight, air, water and nutrients. Reduce any of these,
or provide too much of any one and the grass may die or simply suffer. Int
the right proportions, the grass will flourish, providing beauty to the
landscape and a clean safe place to play plus many benefits to the environment.
Grass obtains three of the four essential factors
(air, water and nutrients, from the soil, but many soils are less than
ideal for growing grass. Some soils contain too much clay and may
be very compacted...great for roads, bad for grass, because air and water
aren't available to the roots and they can't grow. Other soils
may have too much sand...beautiful on a beach, but difficult to grow
grass because water and nutrients won't stay in the root zone long enough
for the plant to use. Another frequently observed problem with
many soils is that its pH (the degree of acidity or alkalinity) is too
high or too low for optimum growth.
How Deep Should The Soil Be For Turfgrass?
The absolute minimum quality soil depth
for a care-free lawn is 4 inches; however, for deeper root penetration
and the benefits that brings, the accepted standard is 6 inches.
Can Soils Be Improved?
Practically without exception, not
only can most soils be improved, they usually need to be improved to
get the maximum results with only a minimum of on-going effort.
The knowledge of what's necessary, the amount and
availability of materials and the immediate costs of time and money are
the factors that typically deter people from taking the steps necessary
to improve the soil.
The fact is that failing to improve the soil before
planting is only inviting a much greater and continual investment of
time and money that will never return its value as fully as good preparation.
"Step-By-Step Site Preperation"
"The beauty is in the blades, but the 'action' is in the roots," is
a good adage to remember when growing grass. Thus, the value of
proper site preparation and soil improvement, before any planting takes
place, is that it will be easier for the grass roots to penetrate deeply
and evenly. Deep roots will make the lawn more drought resistant,
a more efficient water and nutrient user and more dense as new grass
plant shoots emerge. A dense lawn crowds out weeds and better resists
insects and disease. Follow these simple steps for a beautiful,
healthy and trouble-free lawn:
- Clear the site of all building
materials (wood, cement, bricks, etc.) as well as any buried stumps,
rocks, stones, or other debris that are larger than 2-3 inches in diameter.
- Rough grade the entire
area to eliminate drainage problems on the property. This would
include sloping the grade away from building foundations, eiminating
or reducing severe slopes and filling low-lying areas. A tractor
mounted blade and/ or box are most often used for rough grading, but
if the area is small, it can be done with hand tools. The rough
grading will probably uncover more debris that should be removed and
not buried.
- Initial tilling to a depth
of at least 2 inches, should be completed prior to adding any topsoil
or soil amendments. This will control most annual weeds, alleviate
subsoil compaction, permit a bonding of the topsoil to the subsoil and
improve root penetration as well as air exchange and water movement.
- Add topsoil to achieve a
total topsoil depth of 4-6 inches, after firming. The topsoil should
be a loamy sand, sandy loam, clay loam, loam, silt loam, sandy clay loam
or other soil suitable for the area. To the extent
possible, practical, affordable and available, incorporate humus (fully
decomposed organic matter) into the topsoil.
- Test the soil pH with a
chemical soil test to determine if any pH correcting materials are required.
Acidic soils (pH of 6 and below) can be improved
with the addition of lime. The type (or source) and total amount
of applied lime will be determined by the level of acidity and should
be based on the recommendations of a reliable garden center, turf proffesional
or soil scientist.
Alkaline soils (pH of 7.5 and higer) can
be improved with the addition of sulfur or gypsum. As with acidic
soil correcting materials, the type and total amount of materials will
be determined by the level of alkalinity and should be based on a professional's
recommendation.
- Apply "starter fertilizer" that
is high in phosphate ("P" or the middle number on a bag of
fertilizer), at a rate recommended for the particular product. To
avoid root injury to the newly installed turfgrass sod, the fertilizer
should be raked into the top 3-4 inches.
- Finish grade the entire
site, maintaining the rough grading contours and slopes, with a tractor-mounted
box blade for large areas or a heavy duty rake for smaller sites.
- Roll the area with a lawn
roller one-third full of water to firm and settle the suface. Low
spots revealed by this step should be filled to match the surrounding
grade surface. If time permits, allow the area to settle further
with rainfall or by applying irrigation water.
The site is now ready for turfgrass sod. With
this degree of careful and thoughtful soil and site preparation, the
resultant lawn will be absolutely beautiful. It will require less
maintenance... smaller quantities of water, fertilizer and pesticides...
as it maintains a high degree of density and recovers rapidly from wear.