ABSTRACT

Organic agriculture techniques are the potential approach to reduces the bad effects on environment which can be eco friendly tactic and improve soil and environmental health. Okra (Abelmoschus esculentus L.) belongs to family Malvaceae, considered as one of the most important vegetable crop in Sri Lanka which needs good fertilizer management practices for the optimum production with less environmental hazards. Hence considering this a pot experiment was conducted during the period of January to April 2021 at the School of Agriculture, Palamunai, Sri Lanka to evaluate the different types of fertilizer over the practices of recommended chemical fertilizers in the growth and yield performances Okra. There were eight treatments as T1 (sand only-control ), T2 (sand : poultry manure=1:1), T3 (sand : cow dung =1:1), T4 (sand : goat manure =1:1), T5 (sand: cow dung: poultry manure= 1:0.5:0.5), T6 (sand: cow dung : goat manure=1:0.5:0.5), T7 (sand: poultry manure: goat manure=1:0.5:0.5), T8 (sand: Department of Agriculture (DOA) recommended chemical fertilizer). Each treatments contained ten replicates and the experimental units were arranged in Randomized Complete Blocked Design (RCBD) manner. Growth and yield variables were measured and statistically analyzed using SAS 9.1.3 statistical software. It was revealed that, there were significant (p>0.05) differences between the treatments on all the tested variables. Based on the results obtained recommended chemical fertilizer application showed statistically similar performances with poultry manure, combination of cow dung: poultry manure and combination of goat manure: poultry manure in most tested parameters on growth and yield basis. Therefore, it can be concluded that there is a potential to replace the recommended chemical fertilizers with poultry manure based fertilizer source for a sustainable organic production of okra.
Publication date: 01/12/2021

https://www.ijbpas.com/pdf/2021/December/MS_IJBPAS_2021_DEC_SPCL_2050.pdf

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https://doi.org/10.31032/IJBPAS/2021/10.12.2050