Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Performance of Broadcast Aus Rice+maize Intercropping as Affected by Maize Population and Nitrogen Level

J. C. Malaker
Additional Agriculture Officer
DAE, Khamarbari, Dhaka

K. U. Ahammad
Senior Scientific Officer
OFRD, BARI, RARS, Jessore

N. Y. Shaikh
Senior Scientific Officer
ORC, BARI, Gazipur

M. A. Siddiky
Scientific Officer
BARI, Gazipur, Bangladesh

Abstract/ Executive Summary:

An intercropping experiment involving maize and rice was conducted at On-Farm Research Division, Bangladesh Agricultural Research Institute, Mymensingh during kharif season of 2004 to determine effect of maize as base crop on the productivity and returns from maize-rice intercropping compared with maize and rice grown as monocultures. Broadcast aus rice + maize intercropping at 100 cm × 25 cm and 150 cm × 25 cm spacing of maize and 0, 4, 80 and 120 kg/ha of N were applied in the study field. The dry matter and grain yield of both intercropped rice and maize increased significantly with increase in N level but maize responded more applied N than rice. Increase in maize spacing reduced the dry matter and grain yield of maize but increased those rice. N uptake in both rice and maize increased significantly with each increment in N application. Wider spacing of maize increased the N uptake of rice with corresponding decrease in the N uptake of maize. The highest land equivalent ratio (1.62), rice equivalent yield (5.31t/ha) and return above variable cost (Tk 26,840/ha) were obtained at 120 kg N/ha and 100 cm × 25 cm spacing which higher than the return (Tk 25,375/ha) and rice equivalent yield of sole maize (4.94 t/ha). Intercropping produced higher return above variable cost than sole rice (Tk 7,523/ha) regardless of spacing and N level.

Keywords: Intercropping culture, nitrogen effect, economic performance

Location: Experimental Field of On-Farm Research Division, Bangladesh Agricultural Research Institute, Mymensingh

Start Date: 00-03-2004

End Date: 00-07-2004

Program Area: Farming System

Commodity: Fertilizer

Objectives:

To examine the effect of nitrogen level and maize population on the performance of broadcast aus rice+maize intercropping.

Methodology:

The experiment was conducted during the kharif season of 2004 in a randomized block design with 4 replications at OFRD, BARI, Mymensingh in a rainfed upland. The soil was alluvial with a silt loam texture having pH 6.3, total-N 0.9 g/kg, available P 8 kg/ha and available K 125 kg/ha. The plot size was 6.0m x 5-4.5 m. ‘Hashikalmi’ rice (Oryza sativa L.) and Barnali BARI maize were used as crop. Two spacing of maize i.e. 100 cm× 25 cm (40,000 plants/ha) and 150 cm× 25 cm (26,666 plants/ha) and four levels of nitrogen (o, 40, 80 and 120kg/ha) were used in intercropping. Sole maize was grown at 75 cm× 25 cm spacing (53,333 plants/ha) and sole rice was broadcast. The treatment combinations were a) Intercrop: T₁ = Rice + maize at 100 cm × 25 cm spacing and o kg N/ha, T₂ = Rice + maize at 100 cm × 25 cm spacing and 40 kg N/ha, T₃ = Rice + maize at 100 cm × 25 cm spacing and 80 kg N/ha, T₄= Rice + maize at 100 cm × 25 cm spacing and 120 kg N/ha, T₅ = Rice + maize at 150 cm × 25 cm spacing and o kg N/ha, T₆ = Rice + maize at 150 cm× 25 cm spacing and 40 kg N/ha, T₇ = Rice + maize at 150 cm × 25 cm spacing and 80 kg N/ha, T₈ = Rice + maize at 150 cm × 25 cm spacing and 120 kg N/ha and b) Sole crop: T₉= Rice (broadcast at 100 kg/ha with 60-60-40 kg N, P₂O₅and K₂O/ha, respectively), T₁₀=Maize (75 cm × 25 cm spacing and 120-60-40 kg N, P₂O₅ and K₂O/ha, respectively). A uniform seed rate of 100 kg/ha of B. aus rice was used in the both sole crop and intercrop. The seed rate of sole maize was 30 kg/ha and spacing of maize 100 cm x 25 cm (40,000 plants/ha) and sole rice was broadcast. In the intercropping plots nitrogen was applied from urea as required by the treatments. P and K fertilizers were applied at the rate of 60 P₂O₅ and 40 K₂O/ha from triple super phosphate (TSP) and muriate of potash (MP), respectively. Sole maize was grown at 120-60-40 kg N, P₂O₅ and K₂O/ha and sole rice at 60-60-40 kg N, P₂O₅ and K₂O/ha, respectively. A blanket application of 60 kg P₂O₅ and 40 K₂O/ha was made before final land preparation. One third of the N as indicated above was applied as basal dose. The rest of the N was applied in two equal splits 28 and 42 days after sowing (DAS). The top-dressing of N was made along the maize rows and mulching was done after each top-dressing. Both maize and rice matured 97 days after sowing. Both the crops were harvested on the same day. Using the estimates of N content and dry matter yield, nitrogen uptake was determined. LER values were computed from the grain yield data of the crops and Rice equivalent yield (REY) was determined. Partial budgeting was done to determine the profitability of treatments. Analysis of variances of the data was done by MSTAT-C computer software and mean separation were done by DMRT Test.

Source of Information: Int. J. Sustain. Crop Prod. 4(1):19-22, 2009

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The yield and profitability of broadcast aus rice are low, rice+ maize intercropping at 80 to 120 kg N/ha with 100 cm x 25 cm or 150 cm x 25 cm spacing may be recommended for the B. aus rice growing areas of Bangladesh.

Knowledge Management: Journal