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Dry-seeded rice has a potential to save water, but may entail loss in yield. A 2-year field study examined the combined effects of irrigation frequency and deep tillage on water use and productivity of rice cultivars differing in duration to maturity. Mean grain yield was greater in shorter (5.4 t ha−1) than in medium-duration (4.0 t ha−1) cultivar. Yield gain was more with deep tillage over conventional...
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