Polygonatum cyrtonema Hua from five different areas was used as experimental material,total saponins and total flavonoids.Colorimetric analysis method was used to compare those contents.The results showed that the con...Polygonatum cyrtonema Hua from five different areas was used as experimental material,total saponins and total flavonoids.Colorimetric analysis method was used to compare those contents.The results showed that the contents of Polygonatum polysaccharides from different areas were in the range of 8.09%~11.78%,whereas the content of total saponins and total flavonoids was quite different,which were 2.73%~5.01%and 0.21%~0.71%,respectively.In general,these Polygonatum samples had higher polysaccharide content with obvious differences for the contents of total saponins and a low contents of flavones.展开更多
This study investigates the use of struviterient-loaded magnesium-modified biochar beads(Ca/MgBC+NP)as a slow-release fertilizer and soil amendment,comparing its performance with commercially available slow-release fe...This study investigates the use of struviterient-loaded magnesium-modified biochar beads(Ca/MgBC+NP)as a slow-release fertilizer and soil amendment,comparing its performance with commercially available slow-release fertilizers(SRF)in different soils and crop types.The results demonstrate that Ca/MgBC+NP exhibited satisfying swelling,water retention,and slow-release properties in all tested soils.In sandy soil,which showed the most significant differences(p<0.05),Ca/MgBC+NP enhanced the growth of Brassica chinensis L.and Spinacia oleracea L.after 90 d,with shoot and root lengths,as well as fresh and dry weights,1.25-2.84 times higher than those treated with SRF.The cation exchange capacity and organic carbon content of sandy soil were significantly improved(by 38.55%and 265.38%),overcoming its natural limitations in water and fertilizer retention.Principal Component Analysis(PCA)confirmed that soil properties played a crucial role in crop growth(52.67%variance explained).Spectroscopic analysis indicated that magnesium-related compounds,including struvite and Mg(PO_(4))_(3),contributed to the observed growth promotion.Furthermore,Ca/MgBC+NP effectively immobilized heavy metals,particularly Cr and Hg,with immobilization rates exceeding 80%.This study highlights the potential of Ca/MgBC+NP as a sustainable,low-cost fertilizer that not only enhances crop growth but also improves soil health and remediates heavy metal contamination,providing a promising alternative for green agriculture.展开更多
文摘Polygonatum cyrtonema Hua from five different areas was used as experimental material,total saponins and total flavonoids.Colorimetric analysis method was used to compare those contents.The results showed that the contents of Polygonatum polysaccharides from different areas were in the range of 8.09%~11.78%,whereas the content of total saponins and total flavonoids was quite different,which were 2.73%~5.01%and 0.21%~0.71%,respectively.In general,these Polygonatum samples had higher polysaccharide content with obvious differences for the contents of total saponins and a low contents of flavones.
基金supported by the National Natural Science Foundation of China(Nos.51908457 and 52070155).
文摘This study investigates the use of struviterient-loaded magnesium-modified biochar beads(Ca/MgBC+NP)as a slow-release fertilizer and soil amendment,comparing its performance with commercially available slow-release fertilizers(SRF)in different soils and crop types.The results demonstrate that Ca/MgBC+NP exhibited satisfying swelling,water retention,and slow-release properties in all tested soils.In sandy soil,which showed the most significant differences(p<0.05),Ca/MgBC+NP enhanced the growth of Brassica chinensis L.and Spinacia oleracea L.after 90 d,with shoot and root lengths,as well as fresh and dry weights,1.25-2.84 times higher than those treated with SRF.The cation exchange capacity and organic carbon content of sandy soil were significantly improved(by 38.55%and 265.38%),overcoming its natural limitations in water and fertilizer retention.Principal Component Analysis(PCA)confirmed that soil properties played a crucial role in crop growth(52.67%variance explained).Spectroscopic analysis indicated that magnesium-related compounds,including struvite and Mg(PO_(4))_(3),contributed to the observed growth promotion.Furthermore,Ca/MgBC+NP effectively immobilized heavy metals,particularly Cr and Hg,with immobilization rates exceeding 80%.This study highlights the potential of Ca/MgBC+NP as a sustainable,low-cost fertilizer that not only enhances crop growth but also improves soil health and remediates heavy metal contamination,providing a promising alternative for green agriculture.
