PENGARUH PUPUK FOSFOR DAN PUPUK KOTORAN AYAM TERHADAP KANDUNGAN SERAT DAN PRODUKSI TANAMAN KENAF (Hibiscus Cannabinus) PADA TANAH ULTISOL
Dry land in South Kalimantan is mostly dominated by ultisol soils that have low fertility and acid levels. So it is highly fertilized fertilizer that can improve soil conditions such as with the use of phosphorus fertilizer (P) and chicken manure. The purpose of this research is to know the effect of the combination of treatment of fertilizer P of chicken manure on the production of kenaf plant on ultisol soil. This research was conducted in Cempaka Sub-district, PLN Banjarbaru main substation sub-office for 5 months. The study used a Randomized Block Design with two factors with the first factor dose of phosphorus fertilizer (k) consisting of 5 levels and the second factor was chicken manure consisting of 4 levels (p). In each of these studies it was repeated as many as 2 replications so that there were 40 treatment combinations overall. The observed variables of kenaf plant production. Data obtained from each treatment, then analyzed by analysis of variance using F test at 5% and 1% real level. If the interaction effect on the F test is real or very real, then the analysis is continued with Duncan Multiple Duncan Test (DMRT) at 5% level if the treatment interaction is not significant while the single treatment in F test is real or very real, then the analysis is continued with the real difference test The smallest (BNT) at the 5% real level to know which treatment gives the best growth. The results showed that there was interaction between the dosage of P fertilizer and chicken manure on the highest fiber content in P4K3 treatment that is 60.04 g and there was interaction between the dosage of P fertilizer and chicken manure on the highest fiber production at P4K3 treatment that was 1.50 ton ha-1.