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名词解释题

临界值诊断法 diagnosis method by critical value

发布日期:2022-07-04

临界值诊断法 diagnosis method by critical value

试题解析

临界值诊断法

临界值诊断法,是指以养分临界值作为判断植物养分丰缺标准的诊断法。它并不是一种具体的方法或手段,而是方法的属性或归类。在营养诊断中,不论用化学方法或其他方法测得的养分含量,凡是用临界值作指标判断养分丰缺程度的都属于临界值诊断法范畴。临界值诊断法从最初的用养分浓度高于或低于临界值判断养分丰缺,发展到根据养分元素的平衡状况进行判断[即20世纪70年代由博菲斯创立的诊断施肥综合法。

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