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my science fair project. its my hyphotesis =]
please help me its due tomorrow. thankerss!
^^

2007-11-12 08:46:38 · 3 answers · asked by IzzahyLovely 1 in Science & Mathematics Botany

3 answers

There are many species of grass so the specific grass you chose is necessary to know its specific soil requirements. Each grass has nutrient, water, pH, and mineral preferences however most grasses prefer neutral soil at pH6.5-7.0. Soil is considered neutral over the range 6.5-7.0. Most plants grow best at a pH of 6.5 because most plant nutrients are available for uptake by the roots at this pH level. Nutrient availability is in direct relation to the soil's pH.


Acidity or alkalinity of the soil is determined by the mineral content of the soil. Clay soil or loamy humus rich soil loose their calcium slower that wet sandy soil so usually are less acid. The presence of calcium & magnesium (Ca++, Mg++) ions is usually what determines the pH of soil. Water from rain or irrigation separates into positive H+ and negative OH ¯ ions. The calcium & magnesium (Ca++, Mg++) ions bind the basic, negative OH ¯ ions, leaving the H+ to make the soil acid. Slightly acid soil is 6.0-6.5, acid is 5.5-6.0, then very acid is 5.0-5.5.
Another difference in soils is their water infiltration time. Sandy soil may take only 30 minutes for water to penetrate 2 inches while clay can take many hours.
Grasses for southern climates are different from those selected for northern cool season lawns.

2007-11-12 09:54:41 · answer #1 · answered by gardengallivant 7 · 0 0

sandy soil

2007-11-12 09:11:00 · answer #2 · answered by glenn t 7 · 0 0

Ya.. i did this last year too.. like i said, email me... unkowndreamer@yahoo.com

2007-11-12 10:05:11 · answer #3 · answered by Wabagoo {MCRmy} 6 · 0 0

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