Macronutrients Uptake of Lahi-Lahi (Syzygium Acuminatissimum, Blume) Nursery Seedlings as Mediated by Biofertilizers in Heavy Metal Contaminated Mined-Out Soils in Surigao Del Norte, Philippines

63 Pages Posted: 31 Mar 2023 Last revised: 25 May 2023

See all articles by Mitz Campugan Tapi-on

Mitz Campugan Tapi-on

MSU-Iligan Institute of Technology

Nelly S. Aggangan

University of the Philippines Los Baños - University of the Philippines Los Banos

Hernan P. Bacosa

MSU-Iligan Institute of Technology

Dennis M. Gilbero

Department of Environment and Natural Resources - Forest and Wetland Research, Development and Extension Center. Ecosystems Research and Development Bureau

Jaime Q. Guihawan

MSU-Iligan Institute of Technology

Ruben F. Amparado, Jr.

Mindanao State University-Iligan Institute of Technology

Abstract

Mined-out areas and soils following the termination of mining activities are considered marginalized and unproductive. The prospects of rehabilitating them are not only difficult but costly as well. Cost-efficient strategies to rehabilitate mined-out areas include using microbial biofertilizers as an enhancer to promote better growth and performance of plants. This study was conducted to determine the potential use of biofertilizers to that will enhance the growth of Lahi-lahi (Syzygium acuminatissimum, Blume) seedlings in heavy metal contaminated mined-out soils from Claver and Placer, Surigao del Norte, Philippines under nursery conditions. Soil collection in Claver was done in randomly chosen 10 grids (1m x 1m each) in a one-hectare plot while in Placer, the soil was collected from a stockpile beside the run-off pathway of the mined-out area. The substrate for the nursery experiments was prepared by mixing mined-out soil and vermicompost (1:1 v/v). A total of 300 seedlings were prepared in each soil, with 6 treatments each in ten blocks following the Randomized Complete Block Design (RCBD). Biofertilizers were inoculated into Lahi-lahi seedlings grown for 30 days for the microbes to infect the roots and then repotted into the mined-out soil mixed with vermicompost and complete fertilizer (14-14-14). Nursery monitoring showed that MYKORICH® treatment promoted (p < 0.01) shoot height and diameter growth of Lahi-lahi seedlings in both mined-out soils while MYKOVAM® and control treatments are comparably the highest in both growth parameters above. In the control or uninoculated treatment, there could be the presence of potential and beneficial indigenous species of microbes in the mined-out soil, which necessarily need to be isolated and further studies to test its effectiveness. MYKORICH® inoculation was the first to reach a sturdiness peak and is considered more robust, with enhanced seedling dry biomass, plant volume, water content, and root shoot ratio. This also increased the uptake of essential nutrients such as phosphorus (P), nitrogen (N), and potassium (K). Computed indices: Quality index (Qi) and Biovolume (Bv) in Ni mined-out soil revealed that MYKORICH® has the highest (p < 0.05) (1.58) and Bv of 68.65 while the lowest was obtained in the control and dual inoculation of NEWMYC and NEWNFB, respectively. Qi in Au mined-out soil was observed highest in the MYKORICH® (1.13) while the Bv was likewise recorded the highest in the MYKORICH® treated seedlings. The results indicate that microbial biofertilizers, specifically the arbuscular mycorrhizal fungi (AMF) present in the commercially available MYKORICH®, promoted the overall growth performance of Lahi-lahi seedlings in the heavy metal contaminated mined-out soil.

Keywords: Syzygium acuminatissimum, Mined-out soils, Microbial biofertilizers, MYKORICH®, Biomass index.

Suggested Citation

Tapi-on, Mitz Campugan and Aggangan, Nelly S. and Bacosa, Hernan P. and Gilbero, Dennis M. and Guihawan, Jaime Q. and Amparado, Jr., Ruben F., Macronutrients Uptake of Lahi-Lahi (Syzygium Acuminatissimum, Blume) Nursery Seedlings as Mediated by Biofertilizers in Heavy Metal Contaminated Mined-Out Soils in Surigao Del Norte, Philippines. Available at SSRN: https://ssrn.com/abstract=4406156 or http://dx.doi.org/10.2139/ssrn.4406156

Mitz Campugan Tapi-on (Contact Author)

MSU-Iligan Institute of Technology ( email )

Andres Bonifacio Avenue
Iligan City, 9200
Philippines

Nelly S. Aggangan

University of the Philippines Los Baños - University of the Philippines Los Banos ( email )

Batong Malake
College
Los Banos, 4031
Philippines

Hernan P. Bacosa

MSU-Iligan Institute of Technology ( email )

Dennis M. Gilbero

Department of Environment and Natural Resources - Forest and Wetland Research, Development and Extension Center. Ecosystems Research and Development Bureau ( email )

Jaime Q. Guihawan

MSU-Iligan Institute of Technology ( email )

Ruben F. Amparado, Jr.

Mindanao State University-Iligan Institute of Technology ( email )

HOME PAGE: http://www.msuiit,edu,ph

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