微肥配比对附子生长的影响

目的 研究微肥配比对附子生长及产量的影响。方法 以毛茛科植物乌头为试验材料，采用均匀设计，研究不同的锌、硼、铁、锰配比下附子的生长及产量状况。结果 锌、硼、铁、锰配比为4∶1∶1∶2是促进附子生长和提高附子产量的最佳配比。该配比条件下，附子的株高和叶干质量较对照有所降低，茎粗、须根数、须根长、子根体积及茎、须根、母根干质量均比对照有所增加，且显著或极显著高于其他肥料配比，其中须根和母根干质量较对照处理分别增加了24.5%和25.9%。相关性分析表明，株高与附子单株产量呈显著负相关，而须根、母根干质量与单株产量呈显著正相关。结论 从促进营养器官生长而提高附子产量的角度来说，锌、硼、铁、锰（4∶1∶1∶2）为最佳配比。

Effects of microelements fertilizer ratio on growth of aconite daughter root

Objective To study the effect of micronutrient fertilizer ratio on the growth and yield of aconite daughter root (the processed daughter root of Aconitum carmichaelii). Methods Taking A. carmichaelii (Ranunculaceae) as test material, to study the growth and yield of aconite daughter root under the various ratio of Zn, B, Fe, and Mn by the uniform design. Results To promote the growth and improve the yield of aconite daughter root, the optimum ratio of fertilizer Zn-B-Fe-Mn was 4:1:1:2. Under this ratio, the size of the tuber, the number of the fibrous roots, the length of fibrous roots, the volume of the sub-root, and the dry weight of the tuber, the fibrous roots, and the mother root were significantly or very significantly higher than those under the other fertilizer ratio, while the plant height and the dry weight of leaf were lower than those in the control treatment, with the weight of fibrous roots and the mother roots increased by 24.5% and 25.9% compared with those in the control treatment. The results also showed that there existed negative correlation between the plant height and the yield of per plant, while the dry weight of the fibrous roots and the mother roots showed significantly positive correlation with the yield of per plant. Conclusion The above mentioned ratio of Zn-B-Fe-Mn as 4:1:1:2 is the best, since it could promote the growth and improve the yield of aconite daughter root more than the other treatment.