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Vegetable Production on the Ails of Boro Rice Field and Its Effect on Rice Crop

M.A. Hasan
Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur

N. Islam
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from December 2004 to May 2005 to investigate the performance of selected vegetables and different levels of width of ail in Boro rice cv. BRRI dhan29. The experiment comprised five crop combinations viz. rice alone i.e. control (C₀), rice + bottle gourd (C₁), rice + white gourd (C₂), rice + sponge gourd (C₃), and rice + yard long bean (C₄) and four levels of width of ail viz. 30 cm (A₁), 40 cm (A₂), 50 cm (A₃), and 60 cm (A₄). The experiment was set up using randomized complete block design with three replications. Vegetables included were raised on the ails of rice plots and later, these were given on to the trellis made with bamboo and plastic rope arrangements. The highest grain yield (6.94tha^-1) was obtained from the control treatment (C₀) and the lowest grain yield (5.71tha^-1) obtained from rice + yard long bean (C₄) crop combination, which was similar to rice + white gourd (C₂) crop combination. In vegetable production, the highest yield (15.73tha^-1) was recorded from rice + white gourd (C₂) and the lowest yield (2.28tha^-1) was received from rice + sponge gourd (C₃) crop combination. Results also showed that the highest grain yield (6.54tha^-1) was produced from the A3 (50 cm) treatment, which was similar to A4 (60 cm) treatment and the lowest grain yield (6.03tha^-1) was found in A₂ (40 cm) treatment. In terms of vegetable production, the highest vegetable yield (8.54tha^-1) was recorded from A₄ (60 cm) treatment, which was identical to A₃ (50 cm) treatment and the lowest value (4.95tha^-1) was received from A₂ (40 cm) treatment. On the contrary, the highest rice equivalent yield (15.22tha^-1) was obtained from A₄ treatment, which was similar to A₃treatment and the lowest rice equivalent yield (11.24tha^-1) was found in A₂ treatment. The highest grain (7.21tha^-1) yield was obtained from C₀A₁ treatment combination and the lowest value (4.67tha^-1) was recorded from C₄A₂ treatment combination. The highest vegetable yield (18.78tha^-1) was recorded from C₂A₄ treatment combination (rice + white gourd and 60 cm width of ail) and lowest vegetable yield (1.59tha^-1) was obtained from C₃A₂ (rice + sponge gourd and 40 cm width of ail). On the other hand, the highest rice equivalent yield (23.75tha^-1) was obtained from C₂A₄ treatment combination and the lowest rice equivalent yield (6.65tha^-1) was received from the control treatment combination (C₀A₂). In respect of cost analysis for vegetable cultivation with Boro rice, the highest gross return (Tk. 208,985ha^-1), net return (Tk. 149,049ha^-1) and benefit-cost ratio (3.49) were obtained from the treatment combination of rice + white gourd and 60 cm width of ail (C₂A₄) and the lowest gross return (Tk. 74,030ha^-1), net return (Tk. 17,256ha^-1) and benefit-cost ratio (1.30) were obtained from rice + sponge gourd and 40 cm width of ail (C₃A₂) treatment combination.

Keywords: Vegetable production, Ail, Boro rice crop

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date: 14-01-2004

End Date: 19-05-2005

Program Area: Farming System

Commodity: Vegetables, Yard long bean, Sponge gourd, Bottle gourd, Rice

Objectives:

1. To select the most suitable and adaptive type of vegetables from among the different vegetable crops that could be raised on ails of growing rice crops.

Methodology:

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from December 2004 to May 2005 to investigate the performance of some selected vegetables and different levels of width of ail in Boro rice cv. BRRI dhan29. The experiment comprised five crop combinations viz. rice alone i.e. control (C₀), rice + bottle gourd (C₁), rice + white gourd (C₂), rice + sponge gourd (C₃), and rice + yard long bean (C4) and four levels of width of ail viz. 30 cm (A₁), 40 cm (A₂), 50 cm (A₃), and 60 cm (A₄). The experiment was set up in a randomized complete block design with three replications and the unit plots measured 4.0 m x 2.5 m each. Vegetables included were raised on the ails of rice plots and later, these were given on to the trellis made with bamboo and plastic rope arrangements. Trellises were made in the middle of the plot to minimize the shading effect on rice crop. Boro rice cv.BRRI dhan 29 was fertilized at the rate of 304, 77, 60, 29 and 5 kg ha^-1 of urea, triple superphosphate, muriate of potash, gypsum and zinc sulphate, respectively. Except urea, the whole amount of other fertilizers was applied during final land preparation. Urea was top dressed at 20 and 55 days after transplanting of rice. Rice seedlings of 45 day-old were transplanted on 14 January 2005 in 25 cm apart rows with two seedlings hill^-1maintaining hill distance of 15 cm. The pits on ails were prepared with different fertilizers and manures according to dike cropping manual. Vegetable seeds were sown directly in the pit made on ails of Boro rice field on February 2005 maintaining a distance of 50 cm from pit to pit. Intercultural operations were done and plant protection measures were taken as per requirement of the rice-cum-vegetable cultivation. Five rice hills were selected randomly from each plot and uprooted before harvesting for recording data other then yields. After sampling the whole plot was harvested at maturity on 19 May 2005. The harvested plants of each plot were separately bundled, properly tagged and then threshed and the fresh weights of grain and straw yields were recorded plot wise. The grain weight was assessed at a 14% moisture level. Finally, grain and straw yields were recorded and converted to t ha^-1. Here, vegetable yield assessment was made on the basis of whole plot. Rice equivalent yield, gross return, net return and benefit-cost ratio were also calculated. Data were analyzed and the mean differences were adjudged by Duncan’s Multiple New Range Test.

Source of Information: J. Agrofor. Environ. 3 (1): 105-109, 2009; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results also showed that 50 to 60 cm width of ails are adequate to grow those vegetable successfully. It appears that root growth and over-all development of vegetable crops were much better in broader ails than that of narrower ones. Rice cultivation alone, because of its high input cost, is comparatively less profitable than the plot provided with both rice and vegetable on the ails of the plot.

Knowledge Management: Journal