Application of biochar to improve maize performance on volcanic and sediment soil based parent materials in dry land

Abstract

The study had been conducted in two dry land sites in East Java, where first site was in Situbondo District (volcanic soil), and the second in Sampang District (sediment soil) during the dry season I, 2018. The research was designed in RBD, 3 replicates, and 9 treatments, namely : A = FAF + 1,000 kg organic fertilizer ha-1, B = FAF + 1,000 rice husk biochar ha-1, C = FAF + 1,000 corn cob biochar ha-1, D = FAF + 500 g biofertilizer ha-1, E = RRIF, F = RRIF + 1,000 kg organic fertilizer ha-1, G = RRIF + 1,000 kg biochar rice husk biochar ha-1, H = RRIF + 1,000 kg corn cob biochar ha-1, and I = RRIF + 500 g biofertilizer ha-1. The results showed that the application of RRIF + 1,000 kg corn cob biochar ha-1 in Situbondo District obtained dry seeds yield of corn 7.87 t ha-1 (increased 36.16%), C-organic (increased 19.40%), soil CEC (increased 62.27%) from the RRIF and R/C ratio 2.28, while in Sampang District obtained of dry seeds yield of corn 7.63 t ha-1 (increased 28.89%), C-organic (increased 46.51%), soil CEC (increased 22.98%) from the RRIF and R/C ratio 2.17.