结果表明生长状况不同的玫瑰植株叶片中磷和钙的含量差异明显，其它元素差别甚小，但养分含量之间的比率表现不同。
Results indicate that: the rose plants with different growth status showed marked variation of phosphorus and calcium content in their leaves, and slight differences of other elements.
研究了不同土壤水氮条件下水稻冠层光谱反射特征与植株水分状况的量化关系。
Relationship between canopy reflectance characteristics and plant water status under different water and nitrogen levels was studied.
研究了节水灌溉条件下、不同施肥制度水稻植株对磷的吸收状况。
Phosphorus status in rice plant were studied under water saving irrigation and different fertilizer application systems.
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