Brown manuring for improved crop growth, yield and energetics of wet seeded-rice (Oryza sativa) in the coastal deltaic eco-system

Authors

  • KEERTHI DE Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Puducherry 609 603
  • P. SARAVANANE Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Puducherry 609 603
  • R. POONGUZHALAN Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Puducherry 609 603
  • S. NADARADJAN Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Puducherry 609 603

DOI:

https://doi.org/10.59797/ija.v69i1.5488

Keywords:

Brown manuring, Energetics, Herbicides, Weed interference, Wet seeded rice

Abstract

A field experiment was conducted during October 2020–January 2021 at Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Puducherry to study the effect of different seeding rates of [Sesbania bispinosa (Jacq.) W. Wight] (Sesbania) in rice co-culture along with suitable post-emergence herbicides for brown manuring on crop productivity and energetics in wet seeded rice (Oryza sativa L.). The experiment consisted of 10 treatments, viz. T1 ,Sesbania seeding rate for brown manuring (BM) @15 kg/ha with 2,4-D 0.5 kg/ha; T2 , Sesbania seeding rate for BM @20 kg/ha with 2,4-D 0.5 kg/ha; T3 , Sesbania seeding rate for BM @25 kg/ha with 2,4-D 0.5 kg/ha; T4 , Sesbania seeding rate for BM @15 kg/ha with bispyribac sodium 25 g/ha; T5 , Sesbania seeding rate for BM @20 kg/ha with bispyribac sodium 25 g/ha; T6 , Sesbania seeding rate for BM @25 kg/ha with bispyribac sodium 25 g/ha; T7 , rice alone with 2,4-D 0.5 kg/ha; T8 , rice alone with bispyribac sodium 25 g/ha; T9 , hand weeding twice at 20 and 40 DAS (days after sowing); T10, unweeded control in a randomized block design (RBD) with three replications. Sesbania seeding rate for brown manuring (BM) @25 kg/ha + 2,4-D 0.5 kg/ha recorded significantly lower total weed density (73.3 no./m2) and weed dry weight (37.0 g/m2). Significantly higher crop growth rate (CGR) (528.2 g/m2 /day), plant height (132.8 cm) and rice yield (4823 kg/ha) were observed under Sesbania seeding rate for BM @25 kg/ha + 2,4-D 0.5 kg/ha which was comparable with Sesbania seeding rate for BM @25 kg/ha + bispyribac sodium 25 g/ha but superior to treatments without BM and eventually resulted in higher energy productivity (0.59 to 0.60 kg/MJ), energy profitability (7.74 to 7.77 kg/MJ) and the energy use efficiency (8.74 to 8.77). Thus, Sesbania seeding rate @25 kg/ha along with spraying either 2,4-D 0.5 kg/ha or bispyribac sodium 25 g/ha for brown manuring could be recommended in wet seeded rice.

Author Biographies

  • KEERTHI DE, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Puducherry 609 603

    M.Sc. Student

  • P. SARAVANANE, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Puducherry 609 603

    Professor (ICAR-AICRP (WM))

  • R. POONGUZHALAN, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Puducherry 609 603

    Professor, Department of Agronomy

  • S. NADARADJAN, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Puducherry 609 603

    Professor, Crop Physiology Unit

References

Behera, B., Das, T.K., Ghosh, S., Kaur, R., and Singh, R. 2018. Brown manuring in maize (Zea mays): Effects on weed interference and crop productivity. Indian Journal of Agronomy 63(4): 524–527.

Chaudhary, S.K., Marahatta, S., and Chaudhary, M. 2018. Performance of dry direct seeded rice and weeds on Sesbania brown manuring as compared to farmers’ practice and chemical control method. International Journal of Applied Sciences and Biotechnology 6(3): 265–269.

Das, T.K., Ghosh, S., and Nath, C.P. 2019. Brown manuring optimization in maize; Impacts on weeds, crop productivity, and profitability. The Journal of Agricultural Sciences 157(7–8): 599–610.

Saravanane, P., and Chellamuthu, V. 2016. Seeding method and weed competition effect on growth and yield of direct seeded rice under puddled condition. Indian Journal of Weed Science 48(3): 323–324.

Singh, H., and Gangaiah, B. 2012. Seed production of dhaincha (Sesbania aculeata) as influenced by nitrogen and phosphorus fertilization. Indian Journal of Agronomy 57(4): 46–51.

Vijayakumar, S., Kumar, D., Shivay, Y.S., Sharma, V.K., Sharma, D.K., Saravanane, P., Poornima, S., and Singh, N. 2019. Energy budgeting of aerobic rice (Oryza sativa)-wheat (Triticum aestivum) cropping system as influenced by potassium fertilization. The Indian Journal of Agricultural Sciences 89(11): 1,911–1,915. https://doi.org/10.56093/ijas.v89i11.95341

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Published

2024-05-05

Issue

Section

Research Communication

How to Cite

KEERTHI DE, P. SARAVANANE, R. POONGUZHALAN, & S. NADARADJAN. (2024). Brown manuring for improved crop growth, yield and energetics of wet seeded-rice (Oryza sativa) in the coastal deltaic eco-system. Indian Journal of Agronomy, 69(1), 87-90. https://doi.org/10.59797/ija.v69i1.5488