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本文对罐藏黄桃丰黄的叶片、果实中5种主要矿质营养元素(N,P,K,Ca,Mg)含量的季节性变化进行了研究。结果表明,氮、磷在生长发育前期含量高,后期含量低,叶片与果实表现同一趋势。钾含量在整个测定期间较稳定。钙、镁在叶片上与氮、磷相反,前期含量低,后期含量较高,而果实中钙、镁含量随成熟度提高而逐渐下降。矿质营养元素以叶片中含量最高,用叶分析值作为施肥参考指标较方便、准确。
In this paper, the seasonal changes of five main mineral nutrients (N, P, K, Ca, Mg) in the leaves and fruits of yellow peach plucked cans were studied. The results showed that nitrogen and phosphorus contents were high in the early stage of growth and development and low in the late stage, and the same trend appeared in leaves and fruits. The potassium content is more stable throughout the measurement. The contents of calcium and magnesium in leaves were opposite to that of nitrogen and phosphorus. The contents of calcium and magnesium were low in early prophase and higher in later period. However, the content of calcium and magnesium in fruit decreased gradually with the increase of maturity. Mineral nutrient elements in the leaf content of the highest, with the leaf analysis as a fertilization reference index is more convenient and accurate.