Organic Gardening : Get To Know About Organic Fertilizers
July 15, 2008 on 5:13 am | In Gardening |Why should you use organic fertilizers in your garden? Simply because they are good for your plants and good for the environment. Nearly 70 percent of water pollution comes from agricultural areas that use chemical fertilizers, according to the EPA. These chemicals leach into the water and cause soil erosion. While large-scale farming operations are a chief source of chemical fertilizers in water, home gardeners are also guilty of such pollution. However, many growers are attempting to correct their mistakes by using organic growing methods.
There are several types of organic fertilizers available in the market, such as fish emulsions, seaweed extracts, bone meal, kelp extract, corn meal, etc. You can purchase them in a liquid or pelletized form. Some require being sprayed on, powdering the foliage, or spreading pellets around the base of the plant. These may come in different forms, e.g. liquid, powder, granular or pelleted organic fertilizers. The liquid organic fertilizer is basically applied via foliage spray while the powder form can be applied like tea. The liquid version gives your plants an instant feeding, while the pelleted is more of a slow release or longer lasting version.
If your garden has clay soil, organic fertilizers preserve its tilth, which prevents it from clumping together. Organic fertilizers are also an excellent means of holding water in the soil. This is a boon if you have sandy soil in your garden. Fertilizers made of organic materials have properties that make micro-nutrients like iron and zinc available to your garden plants.
Plants need three important nutrients in order to grow: nitrogen, potassium, and phosphorous. All three of these are found in organic fertilizers. One organic material - manure, for example, does not have all three of these nutrients, however. Therefore, most organic fertilizer suppliers combine and mix different materials to ensure an appropriate mix. Alfalfa meal is a green manure favored by gardeners who grow roses. It is a good source of nitrogen, phosphorous, and potassium, and it also contains Triacontanol. This is a hormone that helps to regulate the growth of your plants.
Natural organic fertilizer raises the organic matter content levels of the soil and aid in its conditioning. Nitrogen and other nutrients in soil are quickly drained because of the looseness of the soil granules but by using organic fertilizer that is no longer a problem to worry about.
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