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Evaluation of Mixed and Intercropping of Lentil and Wheat

Nargis Akter
Bangladesh Jute Research Institute, Manimia Avenue, Dhaka -1207, Bangladesh

Md. A. Alim
Bangladesh Jute Research Institute, Manimia Avenue, Dhaka -1207, Bangladesh

M. Mahbubul Islam
Bangladesh Jute Research Institute, Manimia Avenue, Dhaka -1207, Bangladesh

Zabun Naher
Bangladesh Jute Research Institute, Manimia Avenue, Dhaka -1207, Bangladesh

Maksuder Rahman
Bangladesh Jute Research Institute, Manimia Avenue, Dhaka -1207, Bangladesh

A.S.M. Iqbal Hossain
Patuakhali Science and Technology University, Patuakhali, Bangladdesh

Abstract/ Executive Summary:

The experiment was carried out to evaluate the performance of lentil-wheat mixed and intercropping system. Positive variation in different yield contributing characters except 1000seed weight of lentil and wheat to 40% of wheat seed rate and 1:1 line sowing were noticed indicating the agronomic suitability of mixed and intercropping of lentil and wheat in those practices. Line sowing performed better than sole broadcast sowing. All mixed seed rate decreased lentil yield but LER was increased in all the treatments over the sole crop lentil as broadcast. The maximum LER (1.52), monetary advantage (63%), benefit cost ratio (1.84) were achieved in lentil and 40% wheat as mixed cropping system.

Keywords: Mixed, Intercrop, Lentil, Wheat, Yield, Economics

Location: Agricultural farm, Bangladesh Agricultural University, Mymensingh

Start Date: 00-00-1996

End Date: 00-00-1997

Program Area: Knowledge Management

Commodity: Wheat, Lentil

Objectives:

To determine the performance and yield advantages and economic gains from the variable seed rate ratios of wheat as mixed/intercropping within the base crop lentil.

Methodology:

The experiment was conducted at the Agricultural farm, Bangladesh Agricultural University, Mymensingh in 1996-1997 under Old Brahmaputra flood plain agro ecological zone with the following treatments:

T₁	:	Lentil 100% + 0% Wheat (Broadcast)
T₂	:	Lentil 100% + 20% Wheat (Mixed crop)
T₃	:	Lentil 100% + 40% Wheat (Mixed crop)
T₄	:	Lentil 100% + 60% Wheat (Mixed crop)
T₅	:	Lentil 100% + 80% Wheat (Mixed crop)
T₆	:	Lentil 0% + 100% Wheat (Broadcast)
T₇	:	1:1 row system of lentil : wheat (Intercrop)
T₈	:	2:1 row system of lentil : wheat (Intercrop)
T₉	:	3:1 row system of lentil : wheat (Intercrop)
T₁₀	:	1:0 row system of lentil : wheat (Line sown sole lentil)
T₁₁	:	0:1 row system of lentil : wheat (Line sown sole wheat)

The experiment was laid out in a randomized complete block design (RCBD) with four replications. The plot was 1.6x12.5 m² with irrigation canal of 0.5m wide and 0.15 mm depth was made around block to provide irrigation water. Seed rate used for wheat and lentil were 130 and 35 kg ha^-1 respectively. Different fertilizers for sole wheat were Urea, TSP, MP, Gypsum @ of 180, 140, 40 and 110 kg ha^-1, respectively. The whole amount of TSP, MP, Gypsum and 2/3rd of urea were applied as basal dose at final land preparation. Rest one third of urea was applied as top dressing before irrigation. Different fertilizers such as urea, TSP and MP for sole lentil and mixed intercropped situation were applied at the rate of 49.4, 98.8 and 49.4 kg ha^-1, respectively. The crop was sown on 5/12/96, weeding were done twice, once on 10/01/97 next on 25/01/97. The top dressing of urea was done prior to irrigation. The plot was irrigated shallowly on 26/12/96. No major insects and pests and disease infestation were observed in experimental crops. All crops were harvested in 25th March 1997 at full maturity. The data of different yield contributing characters were analyzed statistically. The increase in productivity per unit area of mixed and intercrops was calculated in terms of land equivalent ratio (LER) using the following formula:

Monetary advantage was used for economic performance of the mixed and intercrops. It was calculated using formula of Willey^[9].

Where,

GR = Gross return and LER = Land equivalent ratio.

Source of Information: Journal of Agronomy, 3: 48-51, 2004; ISSN 1680-8207

Article Link (Online Journal): DOI: 10.3923/ja.2004.48.51; URL: http://scialert.net/abstract/?doi=ja.2004.48.51

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In conclusion, the mixed cropping of lentil with 40% wheat seed rate would be the appropriate seed rate with base crop lentil for higher total production and income and be remunerative to the farmers.

Knowledge Management: Journal