Abstract:
Steel slag and rice husk bokashi are the ameliorant that expected can decrease P-retention
increase available P in Andisols. The objective of this research was to compile the influence of
steel slag and rice husk bokashi to P-retention, available P and corn biomass. The treatments
were arranged in Randomized Block Designed in factorial pattern with two factors: steel slag and
rice husk bokashi, each consisted of four level: 0, 2.5, 5.0 and 7.5 % in 10 kg soil weight (w/w),
made 16 combined treatments and repeated three times. The treatments were incubated for four
months and then be analyzed the soil characteristics. The results showed that. Slag steel and
rice husk bokashi did not interact in decreasing P-retention and increasing available P, but 7.5%
of rice husk bokashi individually decreased P-retention to 84.58% and increased available P to
254.75 ppm P. Slag steel and rice husk bokashi interacted in increasing corn biomass, where the
combination of 2.5% and 5.0% steel slag with 7.5% rice husk bokashi resulted in biomass of
170.73 g and 217.68 g. |
