EFFECT OF VARIETIES AND DIFFERENT SOURCES OF NITROGEN FERTILIZER ON YIELD AND YIELD CONTRIBUTING CHARACTERS OF BABY CORN

Md Humaun Kabir,Md Harun Or Rashid,Md Delwar Hossain,Md Shahriar Kobir

doi:10.26480/mjsa.01.2021.01.05

Md Humaun Kabir, Md Harun Or Rashid + Show 2 more

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https://doi.org/10.26480/mjsa.01.2021.01.05

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Abstract

Maize as well as baby corn is an exhaustive crop in terms of nutrient and water uptake from soil hence soil health become deteriorate easily and as different amounts and forms of nutrient supply in baby corn affect the productivity of baby corn so combination of organic and inorganic sources of nutrient is beneficial for soil heath and to maximize the productivity of baby corn thus an experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during November 2017 to February 2018 to investigate the effect of varieties and sources of nitrogen fertilizer on yield and yield contributing characters of baby corn. The experiment was laid out in randomized complete block design (RCBD) with three replications. The experiment consisted of two varieties viz., BARI Sweet corn-1(V1), Baby star (V2) and five sources of nitrogen fertilizer viz.,100% recommended N from urea(N1),75% N from urea + 25% N from cowdung (N2), 50% N from urea + 50% N from cowdung (N3), 75% N from urea + 25% N from poultry manure(N4),50% N from urea + 50% N from poultry manure(N5).Yield and yield contributing characters of baby corn were significantly influenced by variety, sources of nitrogen fertilizer and their interactions. The highest number of cob plant-1 (1.67), cob length (13.50 cm), cob girth(3.84 cm), cob yield with husk (14.66 t ha-1), cob yield without husk (3.52 t ha-1), and fresh fodder yield (42.50 t ha-1) were recorded when Baby star was fertilized with N2 (75% N from urea + 25% N from cowdung) treatment. Therefore, it may be concluded that Baby star is the promising baby corn variety when coupled with (75% N from urea + 25% N from cowdung) for maximizing baby corn production and improving soil health.

Highlights

Maize (Zea mays) is considered as the most important grain crops in developing countries like Bangladesh and in Bangladesh it is ranked as second grain crops for its capability of higher productivity (Kobir et al, 2019)
The maximum number of cob plant-1 was observed in Baby star (1.27) and the minimum number of cob plant-1 observed in BARI sweet corn-1 (1.20) (Table 2)
A study showed that application of recommended N through inorganic sources maximize the yield contributing characters which is statistically similar when N fertilizer application combined with 75% from chemical sources and 25% from FYM or poultry manure or from sheep manure and our present experiment revealed that yield contributing characters of Baby corn showed better result with the application of N fertilizer as 75% from inorganic sources and 25% from cowdung (Kumar et al, 2009)

Summary

Introduction

Maize (Zea mays) is considered as the most important grain crops in developing countries like Bangladesh and in Bangladesh it is ranked as second grain crops for its capability of higher productivity (Kobir et al, 2019). Baby corn is a converted new commercial economic product of maize and people little known to it. It is because there is lack of availability of high yielding variety and improved production technology, besides there is a gap in knowledge about use and economic benefits of this promising crop. Maize is an important potential crop of Bangladesh and it is grown almost yearround, in addition to increase of the economic return of maize production, its production as Baby corn can be the best tool provided that the availability of modern agro-production technique (Neupane et al, 2011).

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