Organic Fertilizers- As opposed to Chemical Fertilizers, Organic Fertilizers increased biomass activity and the positive effects of microbial activities on both soil and land. The presence of more organic matters encouraged the growth and existence of more microbial communities, which suppressed the occurrence of plant diseases.
Nonetheless, the use of organic materials as fertilizers should be approached with caution, particularly compost and Municipal Solid Wastes (MSW). The quality of good organic fertilizer should consider the absence of heavy metal contents or other organic pollutants that will produce adverse results through repeated applications. It is important that the compost or MSW used will enhance soil organic matter and propagate soil microbial communities.
Biofertilizers- This type of soil augmentation is considered as harmless and will not result to “fertilizer burn". The fertilizers are made up of live microorganisms that will immediately act to release nutrients found in the soil. Handling and application however, requires knowledge about the limitations of its use. First off, biofertilizers and chemical fertilizers including pesticides or herbicides should not be combined. In addition, the use of biofertilizer should be a part of a whole agricultural system that relies only on things or supplements that are organic.
To date, assessments of long term effects of its application are still lacking. Farmers have been provided with limited knowledge regarding its use, since certain technological issues still need to be threshed out.
As we get to understand more about soil microbes and different farming practices, the deeper our understanding of how the environment works. However it also comes with the knowledge that land became degraded. Nevertheless, there is also the matter of appreciating present-day efforts to rehabilitate our resources.