Wheat yield 基本例句 小麦产量 The results showed that Alkali- hydro N and soil organic matter do not affect wheat yield but Olsen- P and Exchangeable K have a close correlation with grain yield in a dry year. 结果表明：干旱年份，碱解氮、有机质对产量没有太大的影响，相反，速效磷和速效钾与产量关系密切。 cnki