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作者以等离子发射光谱法分别研究了受茎基腐病、生长年龄、不同地段,稀土等因素影响的巴戟天根中二十四种元素含量、结果表明:(1)巴戟天患茎基腐病后呈现的某些症状,可能与其根中硼、锰等微量元素含量显著下降有关。(2)二年生巴戟天根中多种微量元素含量较一年生者下降,可能是土壤元素含量下降而总生物量迅速增加所致;应适时补施微肥。(3)同村不同地段生长的巴戟天根中微量元素含量也有较大差异,故自然因素可显著影响巴戟天微量元素含量。(4)叶面喷施稀土后,巴戟天根铜、锰、锌等微量元素含量均有增加;氮、磷肥也可能影响巴戟天根铜、锰、锌含量。合理使用氮、磷、钾、稀土以及他微量元素肥料,应是巴戟天高产优质途径之一。
The authors studied the contents of twenty-four elements in the roots of Morinda officinalis, which were affected by stem rot, age of growth, different sections, and rare earth elements, using plasma emission spectroscopy. The results showed that: Some of the symptoms presented after rot may be related to a significant decrease in the content of trace elements such as boron and manganese in the roots. (2) The contents of many trace elements in the roots of Morinda officinalis were lower than that of the annual ones in the two-year-old Morinda officinalis. This may be due to the decrease of soil element content and the rapid increase of total biomass; (3) The contents of trace elements in the roots of Morinda officinalis grown in different parts of the same village are also quite different, so the natural factors can significantly affect the content of trace elements in Morinda officinalis. (4) After the foliar application of rare earths, the content of trace elements such as copper, manganese and zinc in the roots of Morinda officinalis increased; N and P fertilizers may also affect the content of copper, manganese and zinc in Morinda officinalis. The rational use of nitrogen, phosphorus, potassium, rare earth and other trace element fertilizers should be one of the high quality and high yield methods of Morinda.