Yield, Dry Production, And Revenue Cost Ratios Of Pennisetum Purpureum Of Cv. Taiwan In Ultisol Soil With Biotechnology Of Bisozyme Mixed Arbuscular Mycorrizal Fungi

Abstract

This study investigates the effects of Bisozyme mixed with Arbuscular Mycorrhizal Fungi (AMF) CV. Glomus manihotis on yield, production, and revenue cost ratio (RCR) of Pennisetum purpureum of CV. Taiwan in ultisol soil for the first harvest in West Sumatra, Indonesia. The N, P, and K fertilizers for AMF CV. Glomus manihotis inoculation is used at recommended doses of 100%, 75%, 50%, and 25%. Whereas, AMF is inoculated with a dose of 10 grams/grass plant clump. This research employed Bisozyme DT 1000 type and Bisozyme MK 1000 type. This research was conducted using a randomized group design, four groups, and five variables. The groups were P0 (Manure + Fertilizer N, P, and K), P1 (Bisozyme), P2 (AMF CV. Glomus manihotis), P3 (Bisozyme + AMF CV. Glomus manihotis), and P4 (Bisozyme + AMF CV. Glomus manihotis + N, P, and K). The variables were yield, dry production, and RCR. The results of the statistical analysis have shown that the treatments are not significant (P < 0.05) for yield and dry production. Meanwhile, the RCR of grass is significantly different (P > 0.05). The yield, dry production, and RCR range from 57.50 (P1) to 66.53 (P4) ton/ha/year, from 12.18 (P1) to 14.93 (P4) ton/ha/harvesting, and from 1.54 (P2) to 6.71 (P0). These results conclude that Bisozyme mixed with FMA could be used as organic fertilizers to substitute N, P, and K fertilizers.