Glen Allen, VA Government County Parish. About Search Results. About Search Results. YP - The Real Yellow PagesSM - helps you find the right local businesses to meet your specific needs. Search results are sorted by a combination of factors to give you a set of choices in response to your search criteria.
Graduate study, travel, work make me an expert in benthics, European languages, wildlife mapping, world fauna and flora. Humus is what the organic constituent of soil is called. It's dark brown, fresh smelling, nutrient rich organic matter. It's formed from the break down of dead and decaying animal and plant matter, and from animal waste products, in the soil.
Soil is essential for plant growth for several reasons. Soil provides plant roots with nutrients, water and air. Soil also serves to anchor the plant. There are different types of soil, and it is very common to find the foundation soil around your house to differ from your property line soil. Soil is comprised of three mineral particle sizes: sand, silt and clay. Large, course mineral particles are sand, fine mineral particles are silt, and very fine mineral particles are clay. An ideal soil is composed of 45 percent mineral (sand, silt and clay), five percent organic material (humus or plant debris and soil organisms), 25 percent water and 25 percent air.