淮北地区不同降水年型下土壤湿度变化规律及与冬小麦产量关系研究
회북지구불동강수년형하토양습도변화규률급여동소맥산량관계연구
Study of the Relationship Between Soil Moisture Variational Rule and Winter Wheat Yield Under Different Yearly Precipitation Pattern In Huaibei Area
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