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Effects of Tillage and Residue Retention on the Performance of Lentil-mungbean-t.aman Cropping Pattern. Season: 2015-2016

M. A. Islam
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

M. Hossain
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

S. M. Zaman
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

M. O. Ali
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

A. Hossain Roknuzzaman
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

D. Sarkar
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

J. Hossain
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

I. Hossain
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted in November 2015-16 at Pulses Research Centre and Regional Agricultural Research Station, Ishurdi, Pabna to assess the effect of tillage and residue on the performance of lentil-mungbean-T.aman cropping pattern in northern Bangladesh. It comprised of three tillage treatments such as conventional tillage (CT), no-tillage (NT) and strip planting (SP) and two levels of residue retention-50 % residue and 15 % residue. As a first crop, only the results of lentil are presenting in the current report. The results showed that although the adoption of NT and SP had no effects on grain yield of lentil but the number of plant population and straw yield increased with SP over CT. The larger number of branches and pod number contributed to greater HI (%) in CT treatment. However, this study will be continued for several years to draw conclusion.

Keywords: Pulses, Lentil, Mungbean, Rice

Location: Pulses Research Center and Regional Agricultural Research Station, Ishurdi, Pabna, Bangladesh

Start Date: 00-00-2015

End Date: 00-00-2016

Program Area: Farming System

Commodity: Mungbean, Rice, Lentil

Objectives:

To evaluate the effects of CA on the performance of rice-lentil-mungbean cropping pattern.

Methodology:

A field experiment was conducted in Pulses Research Center and Regional Agricultural Research Station, Ishurdi, Pabna starting with lentil in the cool dry season (November-March) in 2015-16, followed by mungbean sown in the pre-monsoon season (March-June) in 2016 then rice will be established in the monsoon season (July- October) in 2016. The present report focuses on lentil as a first crop in the rotation. The lentil crop was sown on 11-12 November 2015 and harvested on 6 March 2016. The same rotation will be continuing for several consecutive cropping seasons. The experiment included four replicates for each treatment in a split-plot design. The main plots consist of three types of tillage-strip planting (SP), no-tillage (NT) and conventional tillage (CT). Two levels of crop residue –50 % (50 cm rice residue) and 15 % (15 cm rice residue) were assigned in the sub-plots. The dimensions of the main-plots were 16 m X 16 m and the sub-plots were 16 m x 8 m. The soil was sandy loam having pH 7.5. The fertilizers were used @20-20-20 kg NPK /ha. The seeds were sown in line with 20 cm spacing and seed rate was 34 kg/ha. One hand weeding at 25 days after sowing (DAS) was used for controlling weed. Rovral @ 2 g/L was sprayed two times for controlling diseases at 30 DAS and 40 DAS. Tafgor @ 2ml/L was applied for controlling aphid at 55 DAS. Data on yield contributing characters were recorded from 10 randomly selected plants from each plot and the grain yield (t/ha) was recorded from harvesting of whole plot and converted into t/ha. The GenStat 15^th Edition software package was used for all statistical analyses. The mean differences between treatments were separated by the least significant difference (LSD) at P≤ 0.05 for the measured variables.

Source of Information: Annual Research Report-2015-2016, Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It can be concluded from the first crop in the rotation, the conservation cultivation practices (SP and NT; 50 % residue) and conventional cultivation techniques (CT, 15 %) had similar grain yield of lentil. However, the straw yield of lentil was greater with strip planting than NT and CT. Considering similar grain yield and other benefits of from earlier studies in similar agro-ecosystem such reduced water, labour, time use, production cost and finally increased farm profits; farmers could adopt this technology, SP and HR instead of CT and LR. However, this experiment needs to be continued for several years to get the full benefits of CA and to draw concrete conclusion.

Knowledge Management: Report/Proceedings