Potential of Indole Acetic Acid Producing Bacteria as Biofertilizer in Increasing Production of Corn (Zea mays L.)

Sondang, Yun and Anty, Khazy and yuliarti, Netti and Siregar, Ramond (2019) Potential of Indole Acetic Acid Producing Bacteria as Biofertilizer in Increasing Production of Corn (Zea mays L.). In: CONFERENCE PROCEEDING 3rd INTERNATIONAL CONFERENCE ON SECURITY IN FOOD, RENEWABLE RESOURCES, AND NATURAL MEDICINES 2019 (SFRN 2019). pusat penelitian dan pengabdian pada masyarakat Politeknik Pertanian Negeri Kupang. ISBN 9786025126284

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Abstract

Increasing national corn production continues to be the government’s priority to meet the needs of the community and the National poultry feed industry. Inoculant-based biological fertilizer is one alternative to optimize the productivity of soil and plants. This study aims to test the ability of IAA-producing bacteria as biological fertilizer in increasing the growth and production of corn. The research took place at the Greenhouse and the Politeknik Pertanian Negeri Payakumbuh Experimental Garden from May to September 2019. The research consisted of two stages. First, the production of biological fertilizers inoculated by bacteria in the Greenhouse. In the first stage, a Completely Randomized Design (CRD) repeated three times with biological fertilizer treatment without bacterial inoculation (K0), inoculated Bacillus cereus (K1), Brevibacillus brevis (K2), Bacillus wiedmannii (K3), Pseudomonas azotoformans (K4), and Pseudomonas nitritireducens K5-is used. Second, the application of biological fertilizer on corn plants using a Randomized Complete Block Design (RCBD) repeated three times. The treatment was the same as the experiment in stage one. Plant height, number of leaves, length and width of leaves, the content of N, P, K leaves, and corn production were the object of observation. The results showed an increase in the growth of all treatments inoculated with IAA-producing bacteria and significantly different compared without bacteria (K0). The best corn production is in the treatment of biological fertilizers inoculated with Bacillus cereus.

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