动力学模型需要大量的田间实测资料，主要应用于农田氮素循环、定量评价水氮资源利用率、优化水肥管理措施等方面。
The DPM method needs lot of field data, mainly to study nitrogen cycle in field, assess water and nitrogen usage efficiency and optimize management soil water and nitrogen fertilizer.
综述了落叶果树氮对产量与品质的影响、氮循环、氮诊断与精准施氮等氮素营养研究的几个方面。
The functioning mechanism, absorption, transference, distribution, effective period and perennial effect , as well as application of paclobutrazol in deciduous fruit trees were summarized.
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