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Performance of Aerobic Method on Five Varieties of Boro Rice

M.A. Begum
M.S. Student
M.S. Student, Dept. of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur

M.M. Alam
Lecturer
Dept. of Agronomy, Shahid Akbar Ali Science and Technology College, Thakurgaon

M.A. Rahman
Professor
Dept. of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur

S.S. Islam
Assistant Professor
Dept. of Agronomy, Shahid Akbar Ali Science and Technology College, Thakurgaon

M.S. Rahman
Lecturer
Dept. of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur.

Abstract/ Executive Summary:

A field experiment was conducted at the Agronomy Field Laboratory of Hajee Mohammad Danesh Science and Technology University, Dinajpur during boro season, 2013 to find out suitable rice varieties for aerobic rice cultivation. The treatments comprised of five varieties viz. BR16, BRRI dhan28, BRRI dhan29, BRRI dhan47 and BRRI dhan55 and two methods of planting (conventional transplanting method and aerobic system of planting). The experiment was laid out in randomized complete block design with four replications. Method of planting had significant effect on most of the yield contributing characters and yield. Yield was higher (5.61 t ha^-1) in conventional method than aerobic method (5.30 t ha^-1). On the other hand, there were significant differences among the rice varieties. BRRI dhan29 gave the highest grain yield (6.53 t ha^-1) followed by BR16 (5.84 t ha^-1) and the lowest grain yield was obtained from BRRI dhan28 (4.69 t ha^-1). The irrigation cost for boro rice was more or less Tk.14450 ha^-1 while the additional income from boro rice was only Tk. 4,650 ha^-1. So, Tk. 9800 ha^-1 was saved when aerobic method was adopted. Due to the looming water crisis situation boro rice production could be sustained by using the technology that requires very less water like aerobic method.

Keywords: Transplanting, Aerobic method, Conventional method, Boro rice, Economic analysis

Location: Agronomy Field Laboratory of Hajee Mohammad Danesh Science and Technology University, Dinajpur

Start Date: 00-01-2013

End Date: 00-06-2013

Program Area: Variety and Species

Commodity: Rice

Objectives:

To evaluate the performance of aerobic method of boro rice production over conventional method.

Methodology:

The experiment was conducted at the Agronomy Field Laboratory of Hajee Mohammad Danesh Science and Technology University, Dinajpur during the period from January to June, 2013 to study the effect of cultivation methods (aerobic & conventional method) on the yield and yield attributes of five varieties of boro rice. The experimental field was a medium high land having sandy loam soil with pH 5.35. Treatments included two method of planting namely, Aerobic method (M₁) and Transplanting method (M₂) and five varieties namely, BR16 (V₁), BRRI dhan28 (V₂), BRRI dhan29 (V₃), BRRI dhan47 (V₄) and BRRI dhan55 (V₅). The experiment was laid out in a Randomized Complete Block Design (RCBD) with four (4) replications. All the treatment combinations were randomly distributed to the experimental plots within each block. Lay out of the experiment was done maintaining plot to plot distance 75 cm and replication to replication distance 1.0 m. The total numbers of plots were 40 and the size of unit plot was 10 m² (4.0 m x 2.5 m). Forty five days old seedlings of the rice varieties were transplanted with two seedlings hill^-1 on 30 January, 2013. Direct sowing of seeds was done in case of aerobic method on the same day. Various intercultural operations were done for maintaining the normal growth and development of the crop. The crop was harvested at full maturity when 90% of the spikelets became golden yellow in color. Five hills (excluding border hills) were selected randomly from each unit plot and collected by uprooted prior to harvesting for recording necessary data on various plant characters. Data were statistically analyzed by using the “Analysis of variance” (ANOVA) technique and differences among the treatment means were adjudged by Duncan's Multiple Range Test (DMRT) with the help of a computer package (MSTATC) program (Gomez and Gomez, 1984).

Source of Information: Int. J. Sustain. Crop Prod. 12 (1):1-9 (February 2017)

Article Link (Online Journal): http://ggfjournals.com/e-journals

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It can be concluded from the results that variety BRRI dhan29 performed better than other varieties when grown with aerobic method. Therefore, it would be better to adopt aerobic method for boro rice cultivation along with the other crop management than conventional method of rice cultivation.

Knowledge Management: Journal