Aplikasi Pupuk SP-36 dan Pupuk Kandang Sapi terhadap Ketersediaan dan Serapan Fosfor pada Tanah Inceptisol Kwala Bekala

Rino Lindri Chuaca (University of North Sumatera)
MMB Damanik (University of North Sumatera)
Posma Marbun (University of North Sumatera)

AGROEKOTEKNOLOGI
Vol 5, No 1 (2017)

The objective of this study is to determine the effect of SP-36 fertilizer application and cow manure on the availability and P uptake on Inceptisol taken from Kwala Bekala. This research conducted in gauze house, Soil Fertility Chemical Laboratory, Faculty of Agriculture, University of North Sumatra and PT. Nusa Pusaka Kencana & QC Analytical Laboratory (Asian Agri Group). This study used Randomized Block Design which consist of two factors with three replications Factor I: SP-36 fertilizer (P) with 4 levels dose (ppm / 10 kg BTKO) ie: P0 (0), P1 (100), P2 (200), P3 (300) and factor II: cow manure (S) with 4 levels dose (g / 10 kg BTKO), namely: S0 (0), S1 (50), S2 (100) and S3 (150). The results showed that SP-36 fertilizer application significantly increased soil available P and P-plant uptake. Cow manure significantly increased P-plant uptake. The interaction between SP-36 fertilizer and cow manure significantly increased P-plant uptake. The best treatment was the application 300 ppm P2O5 SP-36 and cow manure 20 tons/ha