Aplikasi Pupuk Organik Cair dari Sabut Kelapa dan Pupuk Kandang Ayam Terhadap Ketersediaan dan Serapan Kalium serta Pertumbuhan Tanaman Jagung pada Tanah Inceptisol Kwala Bekala: The application of liquid organic fertilizer from coconut fibre and manure chicken on the availability and absorption of potassium as well as the growth of corn on the Inceptisol Kwala Bekala

Penelitian ini bertujuan untuk mengkaji pengaruh aplikasi pupuk cair organik sabut kelapa dan pupuk kandang ayam terhadap ketersediaan dan serapan K dan pertumbuhan tanaman jagung (Zea mays L.) pada tanah Inceptisol Kwala Bekala. Penelitian ini menggunakan rancangan acak kelompok dengan dua faktor dan tiga ulangan. Faktor pertama, pupuk organik cair sabut kelapa dengan 4 taraf; K0(0 ml/pot), K1(100 ml/pot), K2(200 ml/pot), dan K3(300 ml/pot). Faktor kedua, pupuk kandang ayam dengan 4 taraf; A0(0 ton/ha), A1(10 ton/ha), A2(20 ton/ha), dan A3(30 ton/ha) dengan total 48 unit percobaan. Hasil penelitian menunjukkan bahwa pemberian pupuk organik cair sabut kelapa berpengaruh nyata terhadap bobot kering tajuk dan serapan K tanaman sedangkan pupuk kandang ayam berpengaruh nyata terhadap pH tanah, C-organik, K-dd, bobot kering tajuk dan serapan K. Interaksi antara keduanya hanya berpengaruh nyata terhadap bobot kering tajuk.   This research aims to determine the effect of combination/interaction from liquid organic fertilizer of coconut fibre and chicken manure on availability and absorption of K on Kwala Bekala Inceptisol and growth of corn (Zea mays L). This research used a factorial randomized block design (RAK) with 2 factors and 3 replications. The first factor, liquid organic fertilizer of coconut fibre with 4 levels,0 ml (K0), 100 ml (K1), 200 ml (K2) and 300 ml (K3). The second factor is chicken manure with 4 levels 0 ton/ha (A0), 10 tons/ha (A1), 20 tons/ha (A2), 30 tons/ha (A3) which acquired 48 experiment units. The results showed that the liquid organic fertilizer of coconut fibre had significant effect in improving plant dry mass and K adsorption of plants while the chicken manure had significant effect in improving soil pH, C-Organic, K-exchange, plant dry mass and K adsorption of plants. Interaction of liquid organic fertilizer of coconut fibre and chicken manure had significant effect only in improving plant dry mass