论文部分内容阅读
分析了21个苎麻品种叶部(叶片+叶柄)钾含量(K_2O%,干重下同)变化特点及其与产量等的关系:苎麻品种叶部钾含量平均值,头麻>二麻>三麻,生长前期>中期>后期,叶柄>叶片,9位叶>5位叶。建议出苗期多施钾肥和后期适当喷施钾肥。品种间钾含量差异显著,其中贵州青园麻和浏阳鸡骨白的钾含量较低而产量高,是对钾利用率高的品种。不同品种间钾含量与最终产量及纤维支数的相关性尚难明确。受花叶病侵染叶片的钾含量明显低于健叶。
The changes of potassium content (K_2O%, dry weight) in 21 leaves of ramie varieties (leaf + petiole) and their relationship with yield were analyzed: the average leaf potassium content in ramie varieties, Hemp, pre-growth> mid-period> late, petiole> leaf, 9 leaves> 5 leaves. It is suggested that more potassium fertilizer should be used during the seedling stage and potash fertilizer should be applied at the later stage. Among the cultivars, the content of potassium was significantly different. Among them, Guizhou Qingyuan Ma and Liuyang chicken had lower potassium content and higher yield, which was a high utilization rate of potassium. The correlation between potassium content and final yield and fiber count among different varieties is not clear. Potassium content of leaves infected by Mosaic was significantly lower than that of healthy leaves.