Performance of rice cultivars with weed management practices in drydirect-seeded rice

K. Pooja; P. Saravanane

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Performance of rice cultivars with weed management practices in drydirect-seeded rice

机译：Performance of rice cultivars with weed management practices in drydirect-seeded rice

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Weeds are the most important biotic constraint in direct-seeded rice (DSR) production. A field experiment was carried out in split plot design replicated thrice during September 2019 to evaluate the performance of different cultivers integrated with weed management practices under DSR at Pandit Jawaharlal Nehru College of Agriculture & Research Institute, Karaikal, Puducherry UT, India. The treatment combination consisted of three cultivars in main plot (ADT 46, CO 52 and White Ponni) and five levelsof weed management practices in the sub-plots (application of pendimethalin 1.0 kg/ha as prc-cmergcncc herbicide at 3 DAS, bispyribac-sodium 0.02 kg/ha as post-emergence herbicide at 20 DAS, sequential application of pendimethalin 1.0 kg/ha followed bybispyribac-sodium 0.02 kg/ha, hand weeding twice at 20 and AO days after sowing (DAS) and unwecded control. Results revealed that rice cultivar ADT 46 integrated with sequential application of pendimethalin fb bispyribac-sodium (1.0 kg/ha fb 0.02 kg/ha)reduced the weed density and weed dry weight, and increased the growth, yield attributes and rice grain yield. Uncontrolled weeds caused 51.9 % yield loss in dry-DSR under coastal deltaic ecosystem.

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来源
《Indian Journal of Weed Science》 |2021年第1期|共3页
作者
K. Pooja; P. Saravanane;
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作者单位

Department of Agronomy, Pandit Jawaharlal Nehru College of Agriculture & Research, Institute,Karaikal, Puducherry 609603, India;

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原文格式 PDF
正文语种英语
中图分类植物保护;
关键词
Dry direct-seeded rice; Grain yield; Ricecultivars; Weed management;

Performance of rice cultivars with weed management practices in drydirect-seeded rice

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