2007-02-06 13:04:45 · 5 answers · asked by Kevin G 2 in Science & Mathematics ➔ Botany
lime,Phosphorus
2007-02-06 13:08:02 · answer #1 · answered by Monet 6 · 0⤊ 0⤋
A glauconitic sandstone could yield fertility. It has sand grains for structure, and glauconite has potassium which is a soil nutrient. Frequently clays are in association, and these are critical for soil. A glauconitic sandstone may also be called a glauconitic lithic arenite if little clay is in the rock.
Many rocks contain soil nutrients, in fact all soil ultimately comes from rocks.
2007-02-06 21:11:34 · answer #2 · answered by David A 5 · 0⤊ 0⤋
volcanic rock yields very fertile soil.
2007-02-06 21:12:08 · answer #3 · answered by Anonymous · 1⤊ 0⤋
Examples of the volcanic rocks mentioned would be basalt and other igneous types of rocks over many generations of water and wind action and weed-like plants breaking down the basalt.
2007-02-06 22:40:40 · answer #4 · answered by Professor Armitage 7 · 0⤊ 0⤋
what about volcanic rock?
2007-02-06 21:11:49 · answer #5 · answered by cajunrescuemedic 6 · 1⤊ 0⤋