Soybean seed [Glycine max L.] coated by fertile soil-applied sodium bicarbonate at alluvial soil

Soybean yields in Indonesia tend to be low, on average <1.5 Mg ha-1
and many of
the needs are met through soybean imports. The purpose of this study was to determine the
effect of seed coating and sodium bicarbonate on the growth and yield of soybeans in alluvial
soils. The experiment was carried out at Alluvial soil in Padang, with an altitude of 10 m above
sea level. The experiments were arranged in a completely randomized design in the factorial
form. The first-factor was the application of coating material to soybean seeds consisting of 2
levels; uncoated and coated. The second factor was the application of sodium bicarbonate in
the leaves of the plant consisting of 4 concentrations; 0%; 0.125%; 0.250% and 0.375%, with 3
replications. Data were analyzed statistically using F-tests 5% significance level. If the
treatment had a significant effect, it will continue using the LSD test 5% significance level.
The parameters of observations were made; plant height when the generative phase, the
number of primary branches, the number of nodules, the number of pith pods, the weight of
100 seeds, dry weight of seeds per plot. The result showed that the application of coating
materials on soybean seeds and 0.125% sodium bicarbonate sprayed on the leaves increase the
growth and yield of soybean Anjasmoro variety with the highest seed yield was 1.90 Mg ha-1
.