Field Trial on the Growth Performance and Yield of Vegetable Crops after Application of Organic Soil Amendments

Tang, Ing Qing (2017) Field Trial on the Growth Performance and Yield of Vegetable Crops after Application of Organic Soil Amendments. [Final Year Project Report] (Unpublished)

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Abstract

Assessment of the potential performance of organic soil amendments was conducted through field planting of Long Bean (Vigna unguiculata subsp. sesquipedalis), Okra (Abelmoschus esculentus) and Pak Choy (Brassica rapa subsp. chinensis) at farmland located in Kruin area, Sabal, Sarawak. In this study, 2 types of organic soil amendments were used, namely untreated and treated Oil Palm Empty Fruit Bunch (OPEFB) compost, which were without bacterial inoculation and with bacterial inoculation respectively. Treated OPEFB compost was inoculated with various bacteria strains namely Burkholderia unamae, Enterobacter cloacae and Bacillus amyloliquefaciens. For this field trial test, 11 treatments for each type of the planted vegetables consisting both untreated and treated OPEFB compost were applied with the combination of chemical fertilizer at the rate of 0%, 25%, 50%, 75% and 100%. One planting cycle of Long Bean and Okra were 3 months for Long Bean and Okra whereas Pak Choy was cultivated for 1 month. For the evaluation of growth performance and yield assessment, growth parameter such as plant height, stem diameter, number of leaf and leaf area were recorded at an interval of every two weeks. Yield collected were weighed and recorded for all vegetable crops. Meanwhile, the vegetable crops were harvested for biomass determination at the end of the experiment. From this study, the growth and yield of selected vegetable crops cultivated with untreated and treated organic compost were revealed. In general, both untreated and treated OPEFB compost promoted yield production of Long Bean. Treated OPEFB compost promoted yield production of Pak Choy. OPEFB compost did not showed positive effect on the yield production of Okra in this experiment.

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