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Why yellowing is more in direct seeded rice on raised beds? How it can be controlled?

April 26, 2017beds controlled RAISED rice seeded yellowing

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Why yellowing is more in direct seeded rice on raised beds? How it can be controlled?

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In case of raised beds, if the plots are not flooded for initial 1-2 weeks, benefit of enhanced nutrient availability to seedlings do not become available to young seedlings. Reduced availability of iron and zinc lead to leaf yellowing. Besides flooding, foliar sprays of zinc and iron help overcome chlorosis.