Application of Biogas Digestate as a Nutrient Solution for the Hydroponic Culture of Chrysanthemum morifolium Ramat with Rockwool Substrate
Application of Biogas Digestate as a Nutrient Solution for the Hydroponic Culture of Chrysanthemum morifolium Ramat with Rockwool Substrate
复制标题
沼渣作为营养液在岩棉基质水培菊花中的应用
DOI：
10.1007/s12649-018-00576-8
复制
发表时间：
2019
影响因子：
3.2
通讯作者：
Kitaya Yoshiaki
中科院分区：
文献类型：
--
作者：
Takemura Kenji;Endo Ryosuke;Shibuya Toshio;Kitaya Yoshiaki
研究了沼气发酵液作为岩棉栽培营养液的可行性。要做到这一点，作者研究了在岩棉中培养的菊花的生长性能，并喂食来自城市固体废物的有机部分的硝化沼气厌氧消化液（f-NBD）的滤液，并调查了厌氧消化液的应用是否会导致营养物质从岩棉基质中浸出。植物已被喂食的f-NBD表现出较低的鲜重33%，并产生35%的花比那些已被喂食的商业液体肥料，而有没有显着差异的长度的芽，叶绿素含量的叶子，第一次开花的天数，和最大直径的花。此外，在用补充有Mg的f-NBD和商业液体肥料培养的植物之间的任何生长参数没有显著差异。结果表明，f-NBD可作为岩棉栽培菊花的营养液。此外，相当数量的铁从岩棉基质中浸出后的f-NBD的应用，这可以减轻预期的菊花缺铁症状。
The authors investigated whether biogas digestate could be used as a nutrient solution for rockwool culture. To do this, the authors examined growth performances of chrysanthemum cultured in rockwool and fed the filtrate of nitrified biogas digestate (f-NBD) derived from organic fraction of municipal solid waste and investigated whether application of the digestate caused nutrients to leach from the rockwool substrate. Plants that had been fed the f-NBD showed 33% lower fresh shoot weights and produced 35% fewer flowers than those that had been fed a commercial liquid fertilizer, whereas there were no significant differences in lengths of the shoots, chlorophyll contents of the leaves, numbers of days to first flowering, and maximum diameters of the flowers. Also, there were no significant differences in any of the growth parameters between plants that were cultured with the f-NBD supplemented with Mg and the commercial liquid fertilizer. These results indicate that the f-NBD could be used as a nutrient solution for chrysanthemum in rockwool culture if supplemented with Mg. In addition, a considerable amount of Fe was leached from the rockwool substrates following the application of the f-NBD, which could mitigate the expected Fe-deficiency symptoms in chrysanthemum.