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Yield Reduction Assessment of Lentil Due to Different Management Practices

M. Altab Hossain
SSO
Agronomy Division, BARI, Gazipur

M. S. A. Khan
SO
Agronomy Division, BARI, Gazipur

Abstract/ Executive Summary:

Field experiments were conducted at Joydebpur, Jessore and Ishurdi during rabi season of 2003-2004 to identify the factors limiting to high yield of lentil under recommended package (sowing time, fertilizer seed treatment and plant protection measures). Results revealed that maximum response in seed yield was observed with timely sowing (November 10) in complete package followed by use of inoculum (instead of N) in all the locations. Delay in sowing (December 10) and omitting chemical fertilizer, seed treatment, and plant protection measures from complete package were the production factors limiting yield of lentil.

Keywords: Yield reduction assessment, Lentil, Management practices

Location: Joydebpur, RARS, Jessore and RARS, Ishurdi

Start Date: 10-11-2003

End Date: 12-03-2003

Program Area: Crop-Soil-Water Management

Commodity: Lentil

Objectives:

To identify the factors limiting to high yield of lentil.

Methodology:

Field experiments were conducted at the farm of BARI, Joydebpur, Jessore and Ishurdi during the rabi season of 2003-2004. There were eight treatments in all the locations viz. T₁= Recommended package (RP): Sowing seeds on November 10 + BARI masur-4 + fertilizer (20-40-25 kg N, P205, K20/ha) + line sowing (30 cm row to row) + plant protection measures (use of seed treatment, insecticide and fungicide). T₂ = RP but sowing seed on December 10 T₃ = RP - Chemical fertilizer T₄ = RP with cowdung @ 5 t/ha instead of chemical fertilizer T₅= RP with inoculum instead of N (only N omission) T₆ = RP but sowing seeds with broadcast (40-45 kg seeds/ha) T₇= RP-Plant protection measures (omission of seed treatment, disease and insect control). T₈ = RP but omission of seed treatment only. The trial was set up in a RCB design with three replications. The unit plot size was 5m X 3m. Fertilizers were applied in the form of urea, triple super phosphate and muriate of potash at the time of land preparation. Seeds of variety BARI Masur-4 were sown on November 10 and December 10 at Joydebpur, November 9 and December 9 at Jessore and November 3 and December 3, 2003 at Ishurdi for optimum and late sowing, respectively. A light irrigation by sprinkler was given to the crop for uniform emergence. The crop was harvested on March 5 and 12, at Joydebpur, March 5 and 10 at Jessore, March 1 and 8, 2004 at Ishurdi, respectively. Ten plants were selected randomly from each plot to collect data on yield attributes. Yield was calculated from an area of 8m². Collected data were analyzed statistically.

Source of Information: Annual Report, Agronomy Division 2003-2004

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 30,000/-

Total Budget (Tk.) : 30,000/-

Achievement/Findings:

Maximum response in seed yield was observed that timely sowing (November 10) followed by use of inoculam (instead of N) under recommended package in three locations. Delay in sowing (December) and omitting chemical fertilizer, seed treatment, and plant protection measure from complete package were the production factors limiting seed yield of lentil.

Knowledge Management: Report/Proceedings