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https://www.feedipedia.org/node/557

Rice straw is the vegetative part of the rice plant (Oryza sativa L.), cut at grain harvest or after. It may be burned and left on the field before the next ploughing, ploughed down as a soil improver or used as a feed for livestock (Kadam et al., 2000). Rice straw is a major forage in rice-producing areas.