| dc.description.abstract | The objective of this research was to study the effects of biogas effluent from durian shell and
seed combined with chicken manure on growth and yield of marigold. The experimental design was a
Completely Randomized Design. Six treatments were 5 ratios 0:1 (control), 1:9, 1:7, 1:5 and 1:3) of biogas
effluent:water and 5 g./plant chemical fertilizer. The experiment was conducted for 87 days at
Agricultural Technology Faculty in RambhaiBarniRajabhat University. The data of plant height and stem
diameter were collected every week. After flowering, number and diameterof blooming flower were
measured every day. The pH and electrical conductivity (EC) of soil, chlorophyll concentration of leaves,
nitrogen concentration of plant, fresh weight of roots, branches and leaves were measured at the end of
experiment.
The results showed that the fresh weight of stem and leave, total fresh weight, blooming flower
number, chlorophyll concentration, nitrogen concentration of marigold in the chemical fertilizer was
significantly higher than those of the other treatments. The growth of marigold in the control was lowest
as compared to that in biogas effluent and chemical fertilizer treatments. There was no significant
difference in the plant height and blooming flower diameter of marigold treated by the chemical fertilizer
and biogas effluent treatments. However, the stem diameter and fresh weight of root in biogas effluent
treatments were significant higher than those in the chemical fertilizer treatment. The pH of soil was
reduced by chemical fertilizer as compared to the control and biogas effluent treatments. | en_US |
