Respon Tanaman Jagung terhadap Cara Aplikasi dan Jenis Bakteri Endofitik Penambat Nitrogen

Abstrak

The increase in corn plant growth is greatly influenced by cultivation techniques including
fertilization. However, the use of inorganic fertilizers for a long period of time can reduce soil quality.
An alternative environmentally friendly technology that can substitute for the use of inorganic
fertilizers is the biological fertilizer of nitrogen-fixing endotypic bacteria. These endophytic bacteria
have benefits as growth stimulants for plants in increasing nitrogen supply through N2 fixation
through the air. This study aims to increase the growth of corn plants through the application method
and type of nitrogen-fixing endophytic bacteria. This study used a Randomized Block Design (RBD).
The treatment of types and application methods consisted of treatments without endophytic bacterial
isolates, endophytic bacterial isolates Gluconacetobacter diazotrophicus Corrig, G. diazotrophicus
strain 4L, and Burkholderia gladioli with three application methods, namely seed treatment, soil
treatment, and their combinations. The results of the study showed that G. diazotrophicus 4L bacteria
applied by seed and soil treatment gave the best effect on the growth of corn plants on the parameters
of the endophytic bacterial population in leaf tissue, wet weight and dry weight of corn by 1 and 3
times compared to the control and there was also a tendency to increase the dry and wet weight of the
corn plant crown.