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Performance of Short Duration Lentil Lines Under Different Sowing Method with Different Seeding Rates (2015--2016)

M. O. ALI
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M. A. ISLAM
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

J. HOSSAIN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M. S. ALAM
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Abstract/ Executive Summary:

A field experiment was conducted at PRC, Ishurdi and PRSS,BARI,Gazipur during rabi season of 2015-16 &2016-17 to find out the sowing method and optimum seed rate for short duration lentil lines for better crop growth and yield. There were two sowing methods- line sowing 20 cm apart and broadcast, and four seed rates i.e.,50 kg/ha, 60 kg/ha, 70 kg/ha and 80 kg/ha. It was laid out in a RCB design with three replications. It was observed that between line and broadcast sowing there was no significant difference but a slightly higher yield was obtained by line sowing for both the locations. Among the seed rates, 80 kg/ha produced the highest significant seed yield and the lowest was obtained by 50 kg/ha for both locations. The combined effect of the sowing method under different seed rates had no significant differences but numerically the highest seed yield was obtained by line sowing with an 80 kg/ha seed rate for both locations. The highest gross margin was recorded from 80 kg/ha seed rate under line sowing for both locations. But the highest BCR was obtained from 70 kg/ha seed rate with line sowing for both locations. So, the line sowing under 70-80 kg/ha seed rate is suitable for short duration genotype/line for better yield performance.

Keywords: Sowing methods, Lentil, Short-duration, Seed rate, Economic benefit.

Location: PRC, Ishurdi and PRSS,BARI,Gazipur

Start Date: 00-00-2015

End Date: 00-00-2017

Program Area: Crop-Soil-Water Management

Commodity: Lentil

Objectives:

An experiment has been planned to find out the optimum seed rate under different sowing methods for short-duration lentil for better crop growth and yield.

Methodology:

The field experiment was conducted at PRC, Ishurdi and PRSS, Gazipur during the rabi season of 2015-16 &2016-17 to find out the suitable sowing method with optimum seed rate for short duration lentil lines for better crop growth and yield. There were two sowing methods- line sowing 20 cm apart and broadcast, and four seed rates.50 kg/ha,60 kg/ha, 70 kg/ha and 80 kg/ha. It was laid out in an RCB (Factorial) design with three replications. The plot size was 4 m x 2.4m. The genotype BLX-05008-15 was used and seed rates and sowing methods were used as per treatment. In the experimental plots, fertilizers @14-20-20-10 kg NPKS/ha were applied during final land preparation. The sowing date was 19 November, 2016atGazipur and 16 November 2016 at Ishurdi. Intercultural operations were done as and when required. The crop was harvested on 13 February 2017 (87 DAS) and 18 February 2017 (95 DAS) at Gazipur and Ishurdi, respectively. During harvest data on yield contributing characters were recorded from 10 randomly selected plants from each plot and grain yield was recorded from 2.0 m²/plots and converted into kg/ha. The recorded data were statistically analyzed and mean separation was done following the LSD test.

Source of Information: Annual Research Report 2016-2017, Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Article Link (Online Journal):

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Achievement/Findings:

It was observed that between line and broadcast sowing there was no significant difference but a slightly higher yield was obtained by line sowing for both the locations. Among the seed rates, 80 kg/ha produced the highest significant seed yield which was statistically similar to 60 kg/ha and 70 kg/ha and the lowest was obtained by 50 kg/ha for both locations. The combined effect of the sowing method with seed rate had no significant variation but numerically the highest seed yield was obtained by line sowing with 80 kg/ha seed rate for both the locations which are very similar to 70 kg/ha seed under the same sowing method. It may be due to a higher number of plant population with the cumulative influence of yield contributing characters finally which influenced to achieving higher yield. From the last two years' study, it was found that the 80 kg/ha seed rate produced the highest seed yield in 2016-17 but 70 kg/ha seed rate produced the highest seed yield in 2015-16 underline sowing. Mean results of the two years show that 70 kg/ha seed rate produced the highest seed yield under line sowing, although the variation is minimum.

Economic Analysis: The highest gross margin was recorded from 80kg/ha seed rate under line sowing for both locations. But the highest BCR was obtained by70kg/ha seed rate with line sowing for both the locations in 2016-17. It was revealed from the last two years' study that line sowing (20cm apart with continuous seed sowing) under 70-80 kg/ha seed rate is suitable for short duration lentil genotype/line for better yield as well as an economic benefit.

Knowledge Management: Report/Proceedings