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Productivity of Mungbean-t.aman Rice Crop Sequence Under Different Fertilizer Levels for Coastal Region

Sheikh Mostafa Zaman
Senior Scientific Officer
OFRD, BARI, Khulna

Abstract/ Executive Summary:

A field experiment was carried out at Banerpota farm, Satkhira during the year of 2008-09 with a view to observe productive potential of the pattern, cropping pattern based fertilizer recommendation and determine economic dose of fertilizer for the system. Mungbean crop residue managed in main plot. The management was as such, crop residue removed and crop residue incorporated in soil after picking of pods. The succeeding crop was T.aman (BINA dhan-7). The highest yield of T.aman was found in the plot fertilized with 120 kg N ha^-1 and incorporation of mungbean in the soil.

Keywords: Productivity, mungbean, T.aman, crop sequence , fertilizer levels, coastal region

Location: Banerpota farm, Satkhira

Start Date: 06-08-2008

End Date: 25-10-2009

Program Area: Farming System

Commodity: Mungbean, Rice

Objectives:

To reduce the fertilizer dose through incorporation of mungbean biomass and maximize productivity of succeeding T.Aman

Methodology:

The experiment was conducted at Banerpota farm, Satkhira during the year of 2008-09. Before implementing the experiment, initial soil samples were collected from the experimental plots and were analyzed. The experiment was land out in split plot design with 3 replications. Mungbean residue management is in main plot and fertilizer in sub plot. Unit plot size was 4.8 m ×3.6 m. Five fertilizers treatments viz. T₁: 40 kg N ha^-1, T₂: 80 kg N ha^-1, T₃: 120 kg Nkg-1, T₄: Farmers practice and T₅: Control were applied for the experiments. Thirty two days old seedlings (var. BINA dhan 7) was transplanted on 6 August, 2008 maintain spacing 20 cm × 25 cm. Entire amount of TSP, MP and gypsum and zinc were applied as basal at the rate of 175-50-20-4 kg ha^-1 respectively. Total prilled urea was applied in three installments at 15, 30 and 45 days after transplanting (DAT). Due to sufficient rainfall no irrigation was done. Other management and pest control measures were taken as and when required. The crop was harvested on 25 October 2008. Yield and yield contributing characters were recorded and analyzed statistically.

Source of Information: Annual Research Report, 2005-06 and 2006-07 published by OFRD, BARI

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Yield and yield contributing characters differ among the treatments. The plot, incorporated with mungbean, gave the highest grain yield (5.27 t ha^-1) while mungbean removed plot gave yield 5.00 t ha^-1. It might be due to highest number of grains panicle^-1 in both cases. Farmers practice gave the highest yield next to 120 kg N ha^-1. Regardless, incorporation and removal of mungbean, the lowest yield was obtained from control (no nitrogen) plot.

Knowledge Management: Report/Proceedings