Thursday, April 21, 2011

Benefits of Earthworm Both for Farmer Gardner & Nature

Earthworm is a creature of nature which giving is a lot of benefits including our everyday's food which came from cultivation. It helps to fertilize land to grow corp and visitable including all other plant.

In one word nobody can describe the benefits of earthworm in soil. Earthworm activities can be summarize by term of Biological, Chemical and physical structure of soil to grow plant. Some body believe that earthworm is harmful for plant though garden and it destroy plant root by eating it up. This is totally wrong. Earthworm don't eat or destroy any part of plant at all!

In a Biological term, earthworms play a major role in converting large pieces of organic matter (e.g. dead leaves) into rich humus (food of plants) by this conversion the soil get more fertility. This is achieved by the worm's actions of pulling down below any organic matter deposited on the dried dirt, such as leaf fall or manure, either for food or when it needs to plug its burrow. Once in the burrow, the worm will shred the leaf and partially digest it, then mingle it with the earth by saturating it with intestinal secretions. Worm casts (see below) can contain 40% more humus than the top 9" of soil in which the worm is living.

As well as dead organic matter, the earthworm also ingests any other soil particles that are small enough—including stones up to 1/20 of an inch (1.25mm) across—into its gizzard wherein minute fragments of grit grind everything into a fine paste which is then digested in the intestine. When the worm excretes this in the form of casts which are deposited on the surface or deeper in the soil, minerals and plant nutrients are made available in an accessible form. Investigations in the US show that fresh earthworm casts are 5 times richer in available nitrogen, 7 times richer in available phosphates and 11 times richer in available potash than the surrounding upper 6 inches (150 mm) of soil. In conditions where there is plenty of available humus, the weight of casts produced may be greater than 4.5 kg (10 lb) per worm per year, in itself an indicator of why it pays the gardener or farmer to keep worm populations high. - Chemical Conventions by Earthworm Taken from Wikipedia.Org

Physical soil structure on a garden or corp field, earthworm play a vital role. By its burrowing actions, the earthworm is of great value in keeping airflow inside soil creating a multitude of channels which allow the processes of both aeration and drainage to occur.

By sliding in their tunnels, earthworms "act as an innumerable army of pistons pumping air in and out of the soils on a 24 hour cycle (more rapidly at night)". Thus the earthworm not only creates passages for air and water to traverse, but is itself a vital component in the living biosystem that is healthy soil. Earthworms continue to move through the soil due to the excretion of mucus into the soil that acts as a lubricant for easier movement of the worm - Point out by Permaculture co-founder Bill Mollison

Earthworms as invasive species: From a total of around 6,000 species, only about 120 species are widely distributed around the world. These are the peregrine or cosmopolitan earthworms.

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