- Plant growth depends on proper nutrient availability for plants which can be successfully achieved with organic fertilizers, according to Utah State University. Organic fertilizers increase the organic matter in soil, leading to better soil properties and thus better nutrient delivery for plants. Disadvantages of organic fertilizers include high salt levels that burn plants when applied too thickly. Too little nitrogen may cause slower growth in plants, also.
- Advantages of inorganic fertilizers include the wide variety available and specific levels of nutrients such as sulfur or iron. Inorganic fertilizers may not provide information regarding the amounts of such minerals in their composition due to wide variations. Inorganic fertilizers may contain herbicides that will stress or even kill vegetables and flowers, according to Utah State University.
- Whether a fertilizer is organic or inorganic does not necessarily affect the plant growth rate. Test your soil to determine specific nutrient needs and choose fertilizer based on the nutrients it provides, as recommended by the University of Utah.
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