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Effect of the Application of Dried Slurry on Yield and Chemical Composition of Maize Fodder (zea Mays)

M. R. Islam
Department of Animal Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

S. M. E. Rahman
Department of Animal Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

K. M. S. Islam
M. S student, Department of Animal Nutrition, Bangladesh Agricultural University,Mymensingh-2202, Bangladesh

R. Chowdhury
M. S student, Department of Animal Nutrition, Bangladesh Agricultural University,Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

The experiment was carried out to evaluate the effect of different levels of dried slurry (DS) as source of nitrogen fertilizer on yield and chemical composition of maize fodder (Zea mays). Four levels of DS (0, 10, 12 and 14 ton/ha) were applied in a Randomized Block Design (RBD). Green biomass yields was significantly higher in DS incorporated groups compared to control. The highest (P<0.01) biomass yield was observed at the application of 12 ton DS/ha. Application of 12 ton DS/ha resulted highest plant height, number of leaves and leaves area (cm²) and stem circumference of maize fodder (P<0.01). Dry matter (DM) and crude protein (CP) content of maize fodder was increased (P<0.01) with an application of 12 ton DS/ha while acid detergent fiber (ADF) and total ash contents were decreased with an increased level of DS. Organic matter (OM) and neutral detergent fiber (NDF) content of green grass were non significant for the incorporation of different levels of DS. From the results of the present study it is evident that, maize fodder can be cultivated through the application of 12 ton DS/ha for obtaining higher yield and nutrient content.

Keywords: Maize fodder, Dried slurry, Nitrogen, Yield, Nutrient content

Location: The fodder plot of Sheep, Goat and Horse farm, Bangladesh Agricultural University, Mymensingh

Start Date: 00-00-2008

End Date: 00-00-2008

Program Area: Animal Health and Management

Commodity: Fodder

Objectives:

1. The present experiment was undertaken to study the effect of dried slurry as nitrogen fertilizer on yield and chemical composition of maize fodder.

Methodology:

The experiment was conducted in the fodder plot of Sheep, Goat and Horse farm, Bangladesh Agricultural University, Mymensingh using different levels of dried slurry (DS). The land was flat, moderate drained and above flood levels. The soil was silt loam textured, neutral in reaction (pH = 7). The average soil nutrient contents were 0.140%, 0.114%, 0.411 ppm and 0.110 ppm for nitrogen, phosphorus, potassium and sulfur respectively. The land was well prepared by traditional ploughing and was leveled by subsequent harrowing and laddering. The land was divided into 12 plots each having 10 m² (4 m × 2.5 m) following Randomized Block Design (RBD). The experimental treatments were designed as control (T₀), DS 10 ton/ha (T₁), DS 12 ton/ha (T₂) and DS 14 ton/ha (T₃). 10 ton DS supplied 14.7 kg N/ha, 10 kg K/ha and 5.4 kg P/ha; 12 ton DS supplied 17.6 kg N/ha, 12 kg K/ha and 6.5 kg P/ha and 14 ton DS supplied 20.5 kg N/ha, 14 kg K/ha and 7.5 kg P/ha. Triple super phosphate (TSP) and murate of potash (MP) at the rate of 60 kg/ha and 40 kg/ha respectively were applied as a basal dose at the time of land preparation and DS was applied at the time of final preparation of land. Seeds were sown in rows at the rate of 55 kg/ha with arrow spacing of 30 cm and plant spacing of 15 cm. Biomass yield and plant characteristics such as plant height, number of leaves and area of leaves were measured in this study. The maize plants were harvested after 56 days and fresh biomass yield from each plot was recorded. Representative samples during the harvesting of the plants were collected from each plot. The samples were chopped, dried in the sun, ground and kept in the polythene bags and stored for further analysis. At the same time freshly collected samples from each plot were kept for determining dry matter content of fresh forage. The chemical components (DM, CP and Ash) were determined according to the method of AOAC. Acid detergent fiber (ADF) and neutral detergent fiber (NDF) were estimated. The data were analyzed statistically by using ‘MSTAT’ statistical program to compute analysis of variance (ANOVA) in a Randomized Block Design. Differences among the treatment means were determined by Duncan’s Multiple Range Test

Source of Information: Bang. J. Anim. Sci. 37(2) : 52 - 57, 2008; ISSN 0003-3588

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It may be concluded that maize fodder harvested at 56 days of age through application of 12 ton DS/ha was best for biomass yield and nutrient contents. So, dried slurry might be an important source of organic fertilizer which can increase soil fertility by increasing organic matter as well as crop or fodder yield and reduce environmental pollution.

Knowledge Management: Journal