...玉米产量；水分利用率 [gap=1206]nd whole plastic-film mulching on double ridges；plastic-film mulching in autumn；yield index of corn；water use efficiency ..
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Trend of corn yield approximately agreed with the productivity index, and there was a positive relationship between them.
玉米产量与生产力指数变化趋势基本一致，为一正相关关系。
Shake flask culture was used and the yield of polysaccharide was taken as main index to ensure the optimum culture conditions of submerged fermentation for Ganoderma lucidum by corn mash medium.
以灵芝多糖为指标，采用摇瓶液体发酵的方法，研究了以玉米水解糖为主要原料，液体培养灵芝的发酵条件。
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