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A field experiment was conducted at the farm of Yangzhou University, Yangzhou, China, to study the effects of organic fertilizers made from maize straw on rice grain yield and the emission of greenhouse gases. Four organic fertilizer treatments were as follows: maize straw (MS), compost made from maize straw (MC), methane-generating maize residue (MR), and black carbon made from maize straw (BC)....
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