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农谚说:“良种是个宝,还得用得好”。在众多的优良品种面前该选哪个?谈谈“两清一吻四选”法,供参考。“两清”——良种种性和农业生态的底要清。各种农作物良种,都有种性不同的多种分类。例如,小麦从通过春化阶段分类,有强冬性、冬性、半冬性、春性;从熟期分类,有晚熟、中熟、早熟;从产量结构分类,有大穗型、中间型、多穗型;从地力水平分类,有
Agricultural proverb said: “The seed is a treasure, have to use well.” In front of a large number of fine varieties of the election? Talk about “two clear one kiss four election” law, for reference. “Two Ching” - thoroughbred species and agro-ecological bottoming out. A variety of crop varieties, have a variety of different kinds of classification. For example, wheat is classified as winter, winter, semi-winter and spring from the vernalization stage; late-maturing, medium-maturing, and early maturing from the maturity stage; , More panicle type; from the ground level classification, there