Effect of herbicides on weed control and potato tuber yield under different tuber eye orientations
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Title |
Effect of herbicides on weed control and potato tuber yield under different tuber eye orientations
Not Available |
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Creator |
C.R. Chethan, V.K. Tewari, A.K. Srivastava, Satya Prakash Kumar, Brajesh Nare, Abhishek Chauhan and P.K. Singh
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Subject |
Cut tuber, Herbicides, Sprout-eye, Weeds, Whole tuber
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Description |
Not Available
Weed management and planting methods in potato cultivation affect the tuberield and quality significantly, and hence, requires proper management. Therefore, to explore the possibilities of developing a pre-emergence (PE) herbicide application system for potato planter specially for cut seed pieces (tubers) a study was conducted at ICAR-Directorate of Weed Research (DWR) during Rabi season of 2017-18 and 2018-19. The study includes different sprout-eye orientation of the potato tubers along with different weed management practices. The application of metribuzin at 0.75 kg/ha as PE effectively controlled the weeds and obtained a weed density of 2.43 and 2.04 weeds/m2 and weed dry biomass of 1.35 and 1.64 g/m2 respectively at 25 and 55 DAP. By application of the metribuzin as PE and paraquat as early-post emergence (PoE), the tuber yield was increased from 9-16.5%. The sprout-eye orientation has significant effect on tuber yield. The tuber yield was reduced by 28.3% and 16.7% respectively, in 2700 sprout-eye orientation and random dropping over sprout-eye orientation of 90±300. The highest tuber yield of 28.4 t/ha was obtained in planting of whole tuber having the size of 40 to 50 g per tuber. The application of metribuzin as PE effectively controlled the weeds, thus a PE applicator system can be developed along with the potato planter. Not Available |
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Date |
2021-10-11T09:42:32Z
2021-10-11T09:42:32Z 2019-10-28 |
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Type |
Research Paper
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Identifier |
Not Available
0253-8040 http://krishi.icar.gov.in/jspui/handle/123456789/65502 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Not Available
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