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Determining the Best Lentil (lens Culinaris) and Mustard (brassica Campestris) Intercrop Combination to Improve Biomass Yield and Economic Returns on the Yield in Southern Region of Bangladesh

Rojina Akter
Scientific Officer
Bangladesh Agricultural Research Institute, Bangladesh

Md. Mahmudul Hasan Khan
Scientific Officer
Bangladesh Agricultural Research Institute, Bangladesh

Md. Nasir Uddin
Upazila Agriculture Officer
Department of Agricultural Extension, MoA, Bangladesh

Gazi Nazmul Hasan
Scientific Officer
Bangladesh Agricultural Research Institute, Bangladesh

Md. Rashedul Islam
Scientific Officer
Bangladesh Agricultural Research Institute, Bangladesh

Razi Uddin
Scientific Officer
Bangladesh Agricultural Research Institute, Bangladesh

Golam Morshed Rokon
Agricultural Development Officer
International Maize and Wheat Improvement Center (CIMMYT), Bangladesh

Abstract/ Executive Summary:

An intercropping experiment on mustard with lentil was conducted during rabi season of 2013 -14 and 2014-15 at the Regional Agricultural Research Station, Rahmatpur, Barisal to find out suitable intercrop combination for higher profitability and economic return. Sole lentil (100%), sole mustard (100%) and five intercrop combinations {one row of lentil and one row of mustard (1:1), one row of mustard in between two rows of lentil (2:1), one row of mustard in between three rows of lentil (3:1), one row of mustard in between four rows of lentil (4:1) and two rows of mustard in between four rows of lentil (4:2)} were evaluated in the present study. Significantly the highest lentil (1.91 t/ha) and mustard yield (1.48 t/ha) were obtained from their respective sole crops. Lentil yield was reduced (17-34%) due to intercropping, but it was compensated by the mustard yield. Moreover, land equivalent ratios (LER) of the intercrop treatments were higher than those of sole crops. The highest (2.29t/ha) lentil equivalent yield (LEY) was obtained from T5 treatment (One row of lentil + Three rows of mustard). This treatment also gave the highest LER (1.65), gross return (Tk 182400/ha), net return (Tk. 103200/ha) and benefit cost ratio (2.29).

Keywords: Corroboration, Lentil, Mustard, Intercropping, Benefit cost ratio

Location: Regional Agricultural Research Station, Rahmatpur, Barishal

Start Date: 00-00-2013

End Date: 00-00-2015

Program Area: Farming System

Commodity: Lentil, Mustard

Objectives:

To find out the optimum plant population of mustard in association with lentil for achieving higher productivity.

Methodology:

The experiment was conducted during the rabi season of 2013-14 and 2014-15 at the Regional Agricultural Research Station, Rahmatpur, Barisal. The soil was sandy loam having pH 7.5 of Agro Ecological Zone 12. The soil was low in organic matter (1.34 %) and deficient in total nitrogen (0.05%), available phosphorus (12 µg/g soil), exchangeable potassium (0.09 meq/100 g soil) and available sulphur (2.2 µg/g soil). The unit plot size was 4m x 4 m. Five treatment combinations viz., T 1= Sole lentil (30 cm x 20 cm), T2 = Sole mustard (30 cm x 20 cm), T3 =1 row lentil + 1 row of mustard,T4=1 Row mustard between every two rows of lentil (2:1), T5 =1 row of mustard between every 3 rows of lentil (3:1) ,and T6 =1 row mustard between every four rows of lentil (4:1), T7 =2 rows of mustard between every 4 rows of lentil (4:2). The experiment was tested in a randomized complete block design with three replications. The seeds of lentil (BARI Mosur 6) and were mustard (BARI Sarisha 15) sown on November 19, 2014. Lentil sole and intercrop plots had received a uniform application of 50-90-40-102 kg NPKS /ha and sole mustard plot had received 250-175-90-160 kg NPKS /ha through urea, triple super phosphate (TSP), muriate of potash (MoP) and gypsum. In lentil and intercrop plots, all fertilizers were applied as basal. But in case of sole mustard plot, one half of urea and full amount of TSP, MoP and gypsum were applied as basal and remaining half urea were applied before flowering at 30 days after sowing (DAS). Cow dung (5 t/ha) were applied as basal in all the plots. Intercultural operations like weeding, irrigation and plant protection measures were provided to both the crops as and when necessary. Lentil was harvested on 11 March 2015 (120 Days after sowing). Lentil and mustard were harvested as whole plot basis. At harvest, 10 randomly selected plants of each crop from each plot were uprooted for the assessment of yield components. The collected data were analyzed statistically and the means were adjudged using LSD. Economic analysis and benefit cost ratio(BCR) were also computed.

Source of Information: International Journal of Environmental & Agriculture Research (IJOEAR), [Vol-4, Issue-8, August- 2018] ISSN:[2454-1850],

Article Link (Online Journal): https://ijoear.com/issue-detail/issue-august-2018

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the study it was found that one row of mustard in between every three rows of lentil performed better than other. Compared to conventional monoculture of lentil, mustard-lentil intercropping had significant advantage in yield, economy, land utilization ratio and reducing soil nitrate-N accumulation, as well as better residual effect on the subsequent crop. Intercropping systems could reduce N fertilizer use and increase relative biomass of respected crops as a result of high photosynthetic efficiency of border rows and sufficient nitrate supply during symbiotic period. Noticeably, intercropping advantage was not inherent but began to emerge at legume formation stage. 3L:1M was the best intercropping system in this study, as it had the largest LER and BCR.

Knowledge Management: Journal