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Effect of Different Levels of N-fertilizer on the Yield, Chemical Composition and in Vitro Digestibility of Maize Fodder (zea Mays)

A. M. M. Tareque
Dept. of Animal Nutrition, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

Md. Shahjalal
Dept. of Animal Nutrition, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

Abstract/ Executive Summary:

An experiment was conducted at the Bangladesh Agricultural University farm to study the feasibility of cultivating "Khai Bhutta" as fodder under three levels (50, 100 and 150 kg/h) of N-fertilization. Highest green forage yield was obtained at 100 kg N-Ievel. But the CP content and DM accummulation increased with the increase of N-fertilizer. The CF content decreased significantly (P<0.05) at 100 kg N-Ievel. In vitro DOM, DE and ME concentrations decreased with the increase of N-fertilizer but not significantly. "Khai Bhutta" as fodder may be cultivated with a good areen matter and nutrient yield using 100 kg N/h.

Keywords: Different levels of N-Fertilizer, Yield, Chemical Composition, In Vitro Digestibility, Maize Fodder (Zea Mays)

Location: Bangladesh Agricultural University farm

Start Date: 00-00-1988

End Date: 00-00-1988

Program Area: Crop-Soil-Water Management

Commodity: Maize

Objectives:

To study the feasibility of cultivating 'Khai Bhutta' (pop corn) as fodder in respect of yield, chemical composition, in vitro organic matter digestibility and digestible and metabolizable energy concentrations at different levels of N-fertilization under farm condition.

Methodology:

The experiment was conducted at the Bangladesh Agricultural University farm (sonatola silt loam, PH 6.9, N2 0.09% and OM 1.6%) during the summer season in 1988. Three levels of N-fertilizer viz. 50, 100 and 150 kg urea per hectare (h) were used in a completely randomized design having three replications of 10 x 6m plot size. The land was prepared properly and seeds were sown by broadcasting at the rate of 75 kg/h in all the experimental plots. One third of N-fertilizer was applied at the time of land preparation, one third was top dressed at 2 weeks after germination and the remaining one third was applied at the pre-flowering stage. Muriate of potash and triple superphosphate at the rate of 40 kg and 50 kgh respectively were applied as a blanket dose at the time of land preparation for farmer's field. Weeding was done at 4 week after cultivation. The maize fodder was harvested at to week of age and the green matter yields in different plots were recorded. Total dry matter in green forage was determined by drawing a composite sample from the harvest of individual plot and the mean values with standard errors were calculated for different treatments. The proximate components of maize forage for individual plot were determined following the methods as recommended by A. O. A. C (1975). In vitro organic matter digestibility and concentration of digestible and metabolizable energy in the fodder were estimated. Data obtained for different parameters were analysed statistically.

Source of Information: Bangladesh Vet. J. Vol. 24-26, No. (1-4) '90-'93 ISSN 0030-9915

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The CP content and DM accummulation increased with the increase of N-fertilizer. The CF content decreased significantly (P<0.05) at 100 kg N-Ievel. In vitro DOM, DE and ME concentrations decreased with the increase of N-fertilizer but not significantly. "Khai Bhutta" as fodder may be cultivated with a good areen matter and nutrient yield using 100 kg N/h.

Knowledge Management: Journal