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根据早先发表的1185个菠萝叶片养分组成和产量的观察数据,本文提出了菠萝“诊断施肥综合法(DRTS)”标准.所用数据分为高产亚群体(大于60吨/公顷,含650个样本)和低产亚群体(小于60吨/公顷,含535个样本),并通过标准的诊断施肥综合法技术得出诊断标准.检验这些标准的可行性是用品外一些独立发表的N.P.K因子试验数据,这些数据包括了其产量的效应.在大多数资料里,这些新的诊断施肥综合法标准可实现临界值方法无法实现的正确N.PK营养诊断.因而,诊断施肥结合法可揭示,在通常被认为在足够范围内的营养缺乏问题.诊断施肥综合法还能增加评价养分平衡的精确性.而这种评价用临界值方法却被忽视了.
Based on the earlier published data on the nutrient composition and yield of 1185 pineapple leaves, this paper presents the criteria for the diagnostic DRF method for pineapples, which are divided into high-yielding sub-populations (> 60 t / ha with 650 samples) And low-yielding sub-populations (less than 60 tons / ha with 535 samples), and diagnostic criteria are derived from standard diagnostic fertilization techniques. The feasibility of testing these criteria is based on a number of independently published NPK factor test data The data include the effect of their yield, and in most cases, these new diagnostic fertilization integrated standards allow for correct N.PK nutrition diagnostics that can not be achieved by the cut-off method.Thus, diagnostic fertilization incorporations can reveal that, In a sufficient range of nutritional deficiencies, the diagnostic fertilization integrated method can also increase the accuracy of the evaluation of nutrient balance, which is neglected by the critical value method.