Organic fertilizers also help foster a healthy environment for beneficial microbes in the soil. Organic fertilizers typically contain smaller amounts of N-P-K than synthetic fertilizers they’re more beneficial to plants because they are taken up slowly as needed where synthetic fertilizers are quickly consumed.
In addition, organic nitrogen sources feed the soil biology while synthetic materials kill the biology and drive out other contributors to good soil like earthworms or nature’s fertilizer producing machines. While plants react to synthetic nitrogen, it breaks down the organic matter faster than plant residue and the dead microbes that go through cycles of bloom, can replace it.