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Effect of Tillage and Residue Management in Soil Moisture Retention and Productivity of Chickpea-maize-t.aman Rice Cropping Pattern in BARInd Soil

Chief Scientific Officer & Head, OFRD and Relevant Scientists of OFRD

Abstract/ Executive Summary:

A field trial was conducted at the farmer's field of FSRD site, Kadamshahar, Godagari, Rajshahi during 2013-14 with an objective to see the effects of tillage and residue management on soil moisture conservation and performance of the crops under Chickpea- Maize-T. Aman rice cropping pattern in the High Barind Tract. The experiment was conducted in split plot design with three replications. There were three tillage options viz. (i) ST= strip tillage (ii) Bed=bed planting and (iii) CT= conventional tillage; and three crop residue managements, viz. (i) R₀= No residue (ii) R₁=15% residue (iii) R₂=30% residue retention in the study. BARI Chola-9, BARI Hybrid Maize-9 and BRRI dhan57 were used for chickpea, maize and T. Aman rice, respectively as a test crop in the study. The Bed planting system gave the highest yields of chickpea (1.23 t ha^-1), maize (5.89 t ha^-1) and rice (3.98 t ha^-1) and followed by ST and lowest in CT. Among the residue management, 15% residue retention showed the highest yields of chickpea (1.17 t ha^-1), maize (5.71 t ha^-1) and rice (3.92 t ha^-1). The Bed plating system also gave the highest rice equivalent yield (REY) (12.97 t ha^-1), gross margin (Tk. 122660 ha^-1) and BCR (2.10) followed by ST. In case of residue management, 15% residue retention gave the highest REY (12.48 t ha^-1), gross margin (Tk. 112317 ha^-1) and BCR (2). The results indicates that, bed planting coupled with 15% residue retention and strip tillage with 15% residue retention might be a good option for higher yield, moisture retention and economic return for Chickpea- Maize-T. Aman rice cropping pattern in High Barind Tract of Bangladesh. Rice equivalent yield (REY) was calculated by converting the yield of component crops into the yield of rice on the basis of prevailing market prices using the formulae (Anjaneyulu et al. 1982) as mentioned bellow: REY= {Yield of each crop (ton ha^-1)x Economic value of respective crop (Tk. ton^-1)/ Price of rice grain (Tk. ton^-1)}.

Keywords: Tillage, Crop residue, Chickpea- Maize-T. Aman rice pattern, Yield

Location: FSRD site, Kadamshahar, Godagari, Rajshahi

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Crop-Soil-Water Management

Commodity: Chickpea, Maize, Rice

Objectives:

To evaluate the performance different tillage methods and crop residues on chickpea, maize and subsequent rice crop under Chickpea- Maize-T. Aman rice cropping system.

Methodology:

The field trial was conducted at the farmer's field of FSRD site Kadamshahar, Godagari, Rajshahi during 2013-14. The experiment was laid out in a split plot design with three compact replications. Three tillage methods viz. (i) ST= strip tillage (ii) Bed=bed planting and (iii) CT= conventional tillage; and three residue management viz. (i) R₀=farmers practice (no residue) (ii) R₁=15% crop residue (iii) R₂=30% crop residue retention were studied. The unit plot size was 5 m × 4 m. Tillage treatments were placed in the main plots and residue retention in the sub-plots. BARI Chola-9, BARI Hybrid Maize-9 and BRRI dhan57 were used for chickpea, maize and T. Aman rice, respectively as a test crop in the study. The lands were fertilized as BARI recommended dose in the form of urea, triple super phosphate, muriate of potash, gypsum, zinc sulphate and boric acid for all tested crops. Seeds of chickpea were sown in line maintaining a spacing of 30 cm with continuous sowing at 15 November 2013. The seeds of maize were sown with maintaining 60 cm × 25 cm spacing on 16 March 2014. Rice was transplanted on 12 August maintaining 20 cm × 15 cm of spacing. Intercultural operations viz. weeding, earthling, irrigation and pesticide spray were done in order to support normal plant growth. Soil moisture regimes of the experimental plots were recorded at a depth of 0-15 cm at 15-days intervals. Data on yield component was collected from randomly selected 10 plants from each unit plot. The crops were harvested on 12 March 2014, 08 August 2014 and 08 November 2014 for chickpea, maize and T. Aman, respectively. For yield data, whole plot was harvested at maturity and the recorded data was converted to ton per hectare. The data were analyzed statistically and the mean differences were adjudged by LSD Test (Gomez and Gomez, 1984). Rice equivalent yield and BCR were calculated to ascertain the efficiency of the different treatment.

Source of Information: Annual Research Report 2014-2015, On- Farm Research Division, BARI, Gazipur

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Bed planting coupled with 15% crop residue management performed better among the treatment combinations. Strip tillage in combination with 15% crop residues management also showed reasonable good yield and economic performance. These two combination may be recommended for Chickpea- Maize-T. Aman rice cropping pattern in High Barind Tract.

Knowledge Management: Report/Proceedings