COMBINED EFFECT OF VERMICOMPOST AND NPK FERTILIZERS ON THE GROWTH AND YIELD OF MAIZE (Zea mays L.)

Authors: J. Ferdous*, M.R. Hoque, S.M. Rahman, A.K.M. M. Hossain and K.V. Kamrunnahar
* Corresponding Author
Published on 2023-07-30
DOI: https://www.doi.org/10.59125/JST.21104
Abstract:

A field experiment was carried out during kharif season of 2019 at Nashipur, Sadar, Dinajpur to study the combined effect of vermicompost (VC) and NPK fertilizers for the growth and yield of maize. The experiment was consisted of six treatments i.e., T1 = VC0NPK0, T2 = VC0NPK100, T3 = VC100NPK0, T4 = VC75NPK25, T5 = VC50NPK50, T6 = VC25NPK75 having four replications on randomized complete block design (RCBD). The result revealed that the highest yield and yield contributing characters such as plant height (193.85 cm), leaf number plant-1 (11.90), cob length with husk (32.03 cm), cob length without husk (16.33 cm), number of rows cob-1 (11.73), number of grains row-1 (29.9), 1000-grain weight (303 g), grain yield (6.6 t ha-1) and straw yield (8.80 t ha-1) were recorded in T5 treatment and the lowest values of all the yield and yield contributing characters were found in T1 (control). Soil pH, organic matter (%), total N, available P, exchangeable K and available S content in post-harvest soil were also influenced by combined application of VC and NPK fertilizers in treatment T5. The results indicate that application of VC50NPK50 can produce maximum yield of maize compared to the conventional system by reducing the uses of inorganic fertilizers at about 50%. Therefore, the findings of the study suggest that integrated use of VC and NPK fertilizers is important for sustainable production of maize under sub-tropical condition of the study area.

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