微生物酵素有机硒肥对金花葵幼苗生长的影响

Effect of Microbial Enzyme Organic Selenium Fertilizer on the Growth of Hibiseu manihot L. Seedlings

摘要: 选用不同硒浓度(0 mg∙L⁻¹、1 mg∙L⁻¹、2 mg∙L⁻¹、4 mg∙L⁻¹、8 mg∙L⁻¹、12 mg∙L⁻¹)梯度的微生物酵素有机硒肥喷施于金花葵幼苗，测定比较金花葵的主根根长、主根直径、茎高、茎直径、叶片面积、鲜重等生长指标，研究微生物酵素有机硒肥对金花葵幼苗生长的影响及最适浓度。结果显示，微生物酵素有机硒肥对金花葵幼苗生长有明显的促进作用，可以有效增加幼苗鲜重，且促进作用随浓度增加呈现先增长后降低的趋势，有机硒肥硒浓度为4 mg∙L⁻¹、时，对金花葵幼苗侧根、叶片及鲜重的促进作用最为明显。本实验可以为以后富硒植物的研究提供资料，为金花葵的种植提供一些参考。

Abstract: In this experiment, Microbial enzyme organic selenium fertilizer with different concentration gradients (0 mg∙L⁻¹, 1 mg∙L⁻¹, 2 mg∙L⁻¹, 4 mg∙L⁻¹, 8 mg∙L⁻¹, 12 mg∙L⁻¹) were applied in seedlings, comparing the root length, root diameter, stem height, stem diameter, leaf area, fresh weight, etc. The effects of microbial enzyme organic selenium fertilizer on the growth of Hibiseu maniho L. seedlings and the optimum concentration were studied. The results showed that the microbial enzyme organic selenium fertilizer had an obvious promoting effect on the growth of Hibiseu manihot L. seedlings and could effectively increase the fresh weight of seedlings, and the promoting effect showed a trend of first increasing and then decreasing with the increase of concentration. When the concentration of organic selenium fertilizer was 4 mg∙L⁻¹, the promoting effect on the lateral roots, leaves and fresh weight of Hibiseu manihot L. seedlings was most obvious. This experiment can provide information for the research of selenium-rich plants in the future, and can provide some reference for the planting of Hibiseu manihot L.