Screening of Microorganisms from Homemade Biofertilizers to Promote Plant Growth

摘要

Excessive usage of chemical fertilizers is on the rise, polluting the groundwater because of the synthetic Nitrogen (N) content in it.Experiments were conducted to determine the potential use of a microorganism from a homemade biofertilizer as a source of Nbiofertilizer.First, two homemade biofertilizer sources, vegetables and food waste, were selected and inoculated with microorganismsfor the growth of the Chinese cabbage. During the experiment, the early growth of the plant was higher than control group and wasstatistically significant. Next, the best microorganisms, which could synthesize the plant-growth promoting elements, were selectedfrom the homemade biofertilizer sources. Six strains of microorganisms were screened and tested for production of N through theamount of total ammonia by Kjeldahl method and the ability of microorganisms in N-cycle. The end results showed thatmicroorganisms promoted the growth of Chinese cabbage more compared to that without biofertilizer (control).