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Effect of Irrigation on Yield and Yield Components of Lentil Under Different Sowing Methods

M. Omar Ali
Pulses Research Centre (BARI) Ishurdi, Pabna

Abstract/ Executive Summary:

A field experiment was conducted at PRSS, BARI, Gazipur, during rabi season of 2014-2015 to find out the effect of irrigation on growth and yield of lentil under different sowing methods. Total dry matter increased day by day and total dry matter was the highest in post sowing+irrigation at 40 DAE which was very similar to pre sowing+irrigation at 40 DAE and the lowest was in control irrespective of sowing method. The highest seed yield was obtained from irrigation at pre sowing + 40 DAE which was similar to irrigation at post sowing + 40 DAE. There was a significant difference between line sowing and broadcast on all the characters except plant population at harvest and 1000 seeds weight where line sowing 25 cm apart produced the highest seed yield. Interaction between irrigation and sowing method had no significant variation on grain yield and yield contributing characters. But numerically the highest seed yield was obtained in I₄ (irrigation at pre sowing + 40 DAE) under line sowing which was very similar to I₅ (irrigation at post sowing + 40 DAE) under line sowing. Similar trend of results were found in 2013-2014.

Keywords: Irrigation, Yield, Lentil, Sowing Methods

Location: PRSS, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

Start Date: 00-00-2014

End Date: 00-00-2015

Program Area: Crop-Soil-Water Management

Commodity: Water management, Lentil

Objectives:

To find out the optimum time of irrigation under different sowing methods for higher yield of lentil.

Methodology:

The field experiment was conducted at PRSS, BARI, Gazipur, during rabi season of 2014-2015 to find out the effect of irrigation on growth and yield of lentil under different sowing methods. There were six levels of irrigation schedule like control (I0), pre sowing (I₁), post sowing (I₂), irrigation at 30 Days after emergence (DAE) (I₃), irrigation at pre sowing + 40 DAE (I₄), irrigation at post sowing + 40 DAE (I₅) and two sowing methods, broadcast (B) and line sowing 25 cm apart (L). It was laid out in a split-plot design with three replications. The irrigation levels were in the main-plot and sowing method was in sub-plot. Plot size was 4m x 3m. The sowing date was 12 November 2014. Seeds of BARI Masur-6 were used @35 kg/ha. In the experimental plots fertilizers @14-20-20-10 NPKS kg/ha was applied during final land preparation. Intercultural operations were done as when required. Soil was collected before sowing and before ever irrigation and weighted and then oven dried and weighted. The soil moisture was calculated through gravitational method. At first 20 days after emergence (DAE) and then at 15 days interval 5 plants for each plot was collected and oven dried and weighted to find out the total dry matter. Plant population/m² at germination, at harvest and yield contributing characters were recorded from 10 randomly selected plants from each plot and grain yield was recorded from 6.0 m2/ plot during harvest.

Source of Information: Annual Research Report; 2015-2016, Pulses Research Centre (BARI) Ishurdi, Pabna

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the last two years study, it may be concluded that, two irrigation i.e. at pre sowing/ post sowings + 40 DAE is effective for achieving higher yield of lentil. Line sowing vs. broadcasting had no significant difference. However line sowing is advisable because of ease of intercultural operation after irrigation.

Knowledge Management: Report/Proceedings