Physicochemical properties of different organic substrate mixtures and their effects on growth and yield of sweet pepper (Capsicum annuum L.) cultivars

Volume 5, Issue 1, February 2020     |     PP. 1-19      |     PDF (471 K)    |     Pub. Date: May 10, 2020
DOI:    214 Downloads     3608 Views  


M. Jahedur Rahman, Professor, Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
Md. Shahjahan Ali, PhD Fellow, Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesm
Farzana Islam, PhD Fellow, Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesm
Most. Zannat Zakia, MS Fellow, Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

Carbonized rice husk, coco peat and sawdust are considered as good growing substrate components, but high water holding capacity causes poor air-water relationship, thus affecting oxygen diffusion to roots. Incorporation of coarser materials into these substrate components could improve aeration status. The present experiment aimed to assess the physicochemical properties of four growing substrate mixtures (M1 = 50% coco peat + 45% bora + 5% shodo, M2 = 50% coco peat + 45% perlite + 5% shodo, M3 = 50% carbonized rice husk + 45% perlite + 5% shodo and M4 = 50% sawdust + 45% perlite + 5% shodo) and their effects on growth and yield of two sweet pepper cultivars (V1 = ‘Papari new-E-red’, V2 = ‘AVRDC PP045-6006’). Results revealed that pH, electrical conductivity (EC), air-filled porosity (AFP) and wettability were higher in M3, whereas bulk density and dry weight were higher in M1 and the lowest in M3. Improved properties of M3 and M2 positively reflected in growth, dry weight, yield and mineral compositions in leaves of sweet pepper. Furthermore, V2 showed significantly better growth and higher yield as compared to V1 cultivar. Therefore, we concluded that incorporation of coarser materials improved physicochemical properties of carbonized rice husk (M3) followed by coco peat (M2) that positively influenced the growth and yield of sweet pepper cv. ‘Papari new-E-red’.

Carbonized rice husk; Coco peat; Sawdust, Growth; Dry weight, Tissue mineral contents

Cite this paper
M. Jahedur Rahman, Md. Shahjahan Ali, Farzana Islam, Most. Zannat Zakia, Physicochemical properties of different organic substrate mixtures and their effects on growth and yield of sweet pepper (Capsicum annuum L.) cultivars , SCIREA Journal of Biology. Volume 5, Issue 1, February 2020 | PP. 1-19.


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