Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
T2-15P-1112
Yield and Biological Efficiencies of Millet-Based Intercropping Systems
Under Dryland Conditions at Bastar Plateau Zone of Chhattisgarh
Ashwani Kumar Thakur, Tejpal Chandrakar, Ashish Kumar Kerketta and
G. Ravindrachary
SG College of Agriculture and Research Station,Jagdalpur, Indira Gandhi Krishi Vishwavidyalaya
(CG) India-494001
agrosgcars@rediffmail.com
Millet is one of the most popular food grain crops grown in almost all tribal belts of
Chattisgarh. It is extensively grown under both a sole and mixed cropping system through the
broadcast method of sowing. In Bastar Plateau Zone, the area under small millets was 28.41
thousand hectares, which was 39.73 percent of Chhattisgarh State (71.50 thousand hectares).
While, the total production was 7.95 thousand tons which were37.06 percent of Chhattisgarh
State's production of small millets of 21.45 thousand tons. The intercropping system of
cereals + pigeon pea/legumes were tested and found to be profitable system. Reason for the
yield advantage in the intercropping system was because the component crops differed in the
utilization of growth resources and converting them more efficiently resulting in a higher
yield per unit area than that produced by the sole crops (Patil et al., 2010).This paper
evaluated different millet based intercropping systems for their biological efficiency
Methodology
A field experiment was conducted during the Kharif season 2019 in the Entisols of
Instructional cum Research Farm, Lamker, S. G. College of Agriculture and Research
Station, Kumhrawand, Jagdalpur, Chhattisgarh, India. During the cropping season total of
2033.00 mm rainfall was received with 78 rainy days. Available N was low available P was
very low and available K was high in the experiment field with acidic reaction and bulk
density was 1.35. The experiment consists of three replications with nine treatments that
were laid out in a randomized complete block design (RCBD). The treatments are: T1: 1 st
Base crop + intercrop (4:1), T 2: 1 st Base crop + intercrop (6:1), T 3: 1 st Base crop +
intercrop (8:1), T4: 2 nd Base crop + intercrop (4:1), T5: 2 nd Base crop + intercrop (6:1),
T 6: 2 nd Base crop + intercrop (8:1), T 7: Sole crop of 1 st Base crop, T 8: Sole crop of 2 nd
Base crop, T 9: Sole crop of intercrop. Land equivalent ratio, Area time equivalent ratio,
aggressivity, Relative Crowding Co-efficient , Harvest Index (%) and Millet Grain
Equivalent Yield (MGEY kg ha -1 ) are computed with formula.
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Ecosystem based approaches for climate change adaptation, ecosystem services, integrated farming system models,
Land degradation neutrality