Why should I use organic fertilizers in your garden? Just because they're good for your plants and good for the environment. Nearly 70 percent of water pollution comes from agricultural areas using chemical fertilizers, according to the EPA. These chemicals leach into the water and cause soil erosion. While large farms are an important source of chemical fertilizers in the water, domestic farmers are also guilty of such pollution. There are many producers in an attempt to correct their mistakes by using organic agricultural fertilizers are methods.Organic the organic soil used to increase nutrient content and soil properties of a garden to improve. The addition of organic matter decomposition in an organic garden provides a natural fertilizer, providing plants with the nutrients they need for optimal growth. These fertilizers also improve the nature of your garden soil, no matter what type you have. If your garden has clay soil, organic fertilizers to keep their field, which prevents bunching. Organic fertilizers are also excellent means of exploitation of soil water. This is a blessing when the sandy soil in your garden. Fertilizers made from organic materials with properties that micro-nutrients like iron and zinc availability for plants.Plants garden three major nutrients needed for growth: nitrogen, phosphorus and potassium. All three of these are found in organic fertilizers. The organic matter, manure, for example, not all three of these nutrients, however. Therefore, most suppliers of organic fertilizers to combine and mix different materials to ensure a good mix. Alfalfa meal is a green manure favored by gardeners who grow roses. It is a good source of nitrogen, phosphorus and potassium, and contains triacontanol. This is a hormone that helps regulate the growth of your plants. Blood meal is a good organic fertilizer. It is an excellent source of readily available organic nitrogen. Bone meal is a good source of calcium and phosphorus in length. Both materials can be mixed for best results. Kelp meal is high in potassium, but no phosphorus. This mulch should be used along with bone meal to compensate for their lack phosphorous.It is important for producers to control the exact composition of an organic fertilizer to buy fertilizer because some may contain micronutrients and may lack other essential nutrients needed for healthy plant growth. Any missing nutrients are added using one of the previous blood meal, bone meal and kelp meal.