Response of some varieties of corn (Zea mays L.) toward applying granular bio-fertilizer on dry land

The Central Bureau of Statistics (2013) corn production in
Indonesia in 2012 amounted to 19.37 million tons, but Indonesia still
imported 3.2 million tons of corn from abroad. The cause of the decline in
corn production is due to climate change and nutrient-deficient (dry) land
conditions. Rhizobaktery biological fertilizers have the ability to increase
plant drought tolerance, increase crop production and produce growth
hormone IAA. The aim of the study was to determine the interaction
between the types of corn plant varieties and the doses of liquid
biofertilizers, the effect of the types of varieties and the effects of liquid
biofertilizer doses on the growth and yield of corn plants. Methods include
bacterial propagation, biofertilizer production, cultivation according to
recommendations and statistical analysis of Split Plot Design with 5% HSD
follow-up test. The results indicated interactions between treatments of corn
varieties and liquid biofertilizer doses on dry land. Corn variety had a
significant effect on the Bisi 99 treatment on the growth and yield of corn
plants. Liquid biological fertilizer had a significant effect, the 50 ml dose
treatment was the best for corn yields, while the 100 ml dose treatment was
the best for corn growth.