Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland.
Department of Power Engineering and Transportation, Faculty of Production Engineering, University of Life Sciences in Lublin, Głęboka 28, 20-612, Lublin, Poland.
Sci Rep. 2023 Jan 11;13(1):528. doi: 10.1038/s41598-023-27836-5.
The article presents the effect of pre-sowing Lavatera thuringiaca L. seeds stimulation with He-Ne laser light on the chemical composition (P, S, K, Ca, Mn, Fe, Ni, Cu and Zn content) of ash obtained after combustion of shoots of different ages. Results varied, but it was confirmed that pre-sowing exposure of seeds to this physical factor for 10-min has the most pronounced effect on K, Cu and Mn content increase (6%, 20%, 31% increase respectively) in the ash after the first year of vegetation as well as on Cu, K and Zn content increase (9%, 19%, 22% increase respectively) after the second year of vegetation. However, 30-min stimulation significantly increases Ca (8%), Mn (20%) and Fe (72%) content in ash after the second year as well as results in ash richer in Ca (22%), P (48%), K (70%) and Zn (95%) after the third year of Lavatera vegetation. The pre-sowing application of He-Ne laser light depending on the time of stimulation can intensify the content of preferable macro- and microelement groups in Lavatera ash, in respective cultivation years. It can be an innovative method of biomass ash enhancement and its more effective use in agriculture as commercial fertilizers substitute.
本文研究了在播种前用氦氖激光照射金露梅种子对不同年龄嫩枝燃烧后灰分中化学元素（P、S、K、Ca、Mn、Fe、Ni、Cu 和 Zn 的含量）的影响。结果表明，播种前用氦氖激光照射种子 10 分钟对增加第一年和第二年生长后灰分中 K、Cu 和 Mn 的含量（分别增加 6%、20%和 31%）有最显著的效果，但 30 分钟的刺激会显著增加第二年生长后灰分中 Ca（8%）、Mn（20%）和 Fe（72%）的含量，并且在第三年生长后使灰分中 Ca（22%）、P（48%）、K（70%）和 Zn（95%）的含量增加。因此，播种前使用氦氖激光照射可以根据刺激时间来强化金露梅灰分中有益的大量元素和微量元素含量，这种方法可以作为创新的生物质灰分强化方法，替代商业肥料更有效地用于农业。
