Pustaka Ilmiah Universitas Padjadjaran

Abstrak

Effects Of Steel Slag And Bokashi Of Husk On Soil Bulk Density, Aggregate Stability And Porosity Of Andisol

Andisol has a distinguishing soil physical characteristic, but it has problem with the P retention. Giving ameliorant to reduce the P retention is expected to maintain, moreover to improve some soil physical characteristics. The objective of this research was to find out the interaction between steel slag and bokashi of husk to bulk density, aggregate stability, soil porosity and biomass of broccoli on Andisol Lembang. This study used a randomized block design factorial with two factors. The first factor was steel slag and the second factor was bokashi of husk. Each of them consisted of 4 levels : 0%, 2.5%, 5.0% and 7.5% with two replications. The result of this research showed there was not interaction between steel slag and bokashi of husk to soil bulk density, soil aggregate stability, soil porosity and biomass of broccoli. The statistical results showed that bokashi of husk influence independently to decreasing soil bulk density until 0.53 g cm-3, decreasing soil aggregate stability until 3.25 and increasing soil porosity until 80.22%, but the provision of steel slag and bokashi of husk didn’t influence to biomass of broccoli.