Field performance of blonde red rice inoculated with actinomycetes (S. mutabilis Nb3) in Brgy. [barangay:village] Oma-Oma, Ligao, Albay [Philippines]
2018
Albao, J.G. | Cruz, J.A. | Chavez, J.R.
Upland rice production can contribute in attaining rice self-sufficiency in areas where there is limited irrigation water. But due to environmental constraints, upland rice production is still marginal. Moreover, supplementation by synthetic fertilizers is usually practiced. Actinomycete inoculation is considered as a strategy that could enhance crop production, and at the same time lessen the use of synthetic fertilizers. The study was conducted to assess the growth (plant height and tiller number) and yield performance of Blonde Red rice (weight of 1000 grain, panicle number and grain yield at 14% moisture content) inoculated with actinomycete inoculants/ CRHBCAI combined with 30kg/ha NPK (T5) produced the most average number of panicles, outnumbering T1 (30kg/ha NPK). Treatments inoculated with actinomycetes (except for T4, CRHBCAI), with or without fertilizer were able to produce comparable number of panicles to T1. With regards to the number of grains per meter square and grain yield at 14% moisture content, results revealed that T1, T3 (soil based carrier actinomycete inoculants/SBCAI + 30 kg/ha) and T2 (SBCAI) were the top three ranking treatments. In addition, grain yield at 14% moisture content obtained from T2 was significantly higher than T4 and significantly different to T1. It concurs with the study of Cruz (2014), wherein actinomycete inoculant with fertilizer increases grain yield. Actinomycetes is a microbial inoculants that stimulated the plant height, tiller number, panicle production and yield in Blonde Red rice. It can be a potential substitute or can be combined with synthetic fertilizers to lessen the use of inorganic inputs. Further investigations on actinomycetes' effect on other crops or other upland rice varieties can be explored.
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