UTILIZATION OF WARETHA AS A SOURCE OF PHOSPHATE SOLUBILIZING BACTERIA AND NPK FERTILIZER TO ROOT PERFORMANCE AND PRODUCTION OF Clitoria ternatea

Abstrak

This study aimed to determine the best dosage of NPK mutiara fertilizer and waretha on root performance
and production of Clitoria ternatea on ultisol soil. This study used a completely randomized design experimental
with 4 treatments and 5 replications. The treatments given were: P0=NPK mutiara fertilizer 100% (control),
P1=NPK mutiara fertilizer 75% + waretha, P2=NPK mutiara fertilizer 50% + waretha, and P3=NPK mutiara
fertilizer 25% + waretha. The variables observed were root mass (g), root length (cm), root and shoot ratio,
shoot fresh weight (g), root dry weight (g), and fresh production (kg/ha) of Clitoria ternatea. Data were
analyzed using analysis of variance, and if there was a significant effect on the measured variables, a further
test was carried out with the Duncan Multiple Range Test (DMRT). The results of the analysis of variance
showed that the treatment had a significant effect (P<0.05) on root length, mass and root dry weight, and
fresh shoot weight and fresh production of Clitoria ternatea, but had no significant effect (P>0.05) on root
and shoot ratio Clitoria ternatea. The average root length in this study ranged from 20.90 cm - 26.30 cm,
the root mass ranged from 0.49 g - 1.25 g, root dry weight ranged from 0.40 to 0.73, shoot fresh weight
ranged from 7.40 g - 14.51 g and fresh production of Clitoria ternatea in the range of 3.70 tons/ha - 7.25
tons/ha. Based on the results of the study, it can be concluded that the dosage of 25% NPK mutiara fertilizer
and Waretha gave the best root performance and production results of Clitoria ternatea on ultisol soil.
Keywords: phosphate solubilizing bacteria, Citoria ternatea, NPK, root performance, waretha