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一、前言随着化肥施用量的日益增加,确定合理施肥量、科学用肥和节约用肥的研究工作日益引起肥料科技工作者的关注。营养诊断施肥、测土配方施肥,平衡法建议施肥等预报施肥量的方法相继提出了不同的参数指标,预报了“最佳”施肥量,无疑这些工作对科学合理地施用化肥将起到积极的推动作用。应该指出:确定合理施肥量是一个复杂的问题。远不是用一、二个有效养分的单
I. INTRODUCTION With the increasing use of chemical fertilizers, the research on fertilizing scientific fertilizers and economizing on fertilizers has drawn more and more attention from fertilizer technologists. Nutritional diagnosis and fertilization, soil testing and fertilizer, balance method proposed fertilization and other methods to predict the amount of fertilizer have put forward different parameters, forecasting the “best” amount of fertilizer, no doubt these efforts to the scientific and rational use of fertilizers will play a positive Promote the role. It should be pointed out: Determining a reasonable amount of fertilizer is a complex issue. Far from using one or two single valid nutrients