Nguyen My Xuyen T, Nguyen Ngoc Thuy, Dinh Hai Nhi H, Nguyen Nguyen Ngan, Tran Thi Thanh Van, Hoang DongQuy
Faculty of Materials Science and Technology, University of Science, Vietnam National University, Ho Chi Minh City, 700000, Viet Nam; Vietnam National University, Ho Chi Minh City, 700000, Viet Nam.
Faculty of Materials Science and Technology, University of Science, Vietnam National University, Ho Chi Minh City, 700000, Viet Nam; Vietnam National University, Ho Chi Minh City, 700000, Viet Nam; Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, South Korea.
Plant Physiol Biochem. 2023 Apr;197:107652. doi: 10.1016/j.plaphy.2023.107652. Epub 2023 Mar 20.
Nanostructured hybrid materials, fabricated by combining nanosilica (n-S) obtained from rice husk and oligochitosan (OC) obtained from the shrimp shell, are environmentally friendly substances that can applied in green agriculture. In this study, 50 mg/L of nanostructured hybrid materials were applied on lettuce (Lactuca sativa L. var. longifolia) at different stages of its growth. Most of the hybrid-material-treated lettuce plants showed better growth than that of the control. The most suitable ages for applying the hybrid material to the lettuce are the ages of three weeks (H3W1) and four weeks (H4W1) to stimulate their growth. The longest leaf of the H3W1-treated lettuce increased by 7.14%, its fresh weight by 8.51%, the numbers of leaves by 4.67%, and the content of total chlorophyll by 24.89% compared with those of the control lettuce. The longest leaf of H4W1 increased by 9.52%, its fresh weight by 26.27%, the number of leaves by 9.52%, and the total chlorophyll content by 52.87% compared with those of the control lettuce. Hence, the hybrid material could be used as a green agrochemical with a great potential in modern agriculture. It can help replace and reduce the use of toxic chemical fertilizers and plant-protection products currently used on the market.
通过将从稻壳中获得的纳米二氧化硅（n-S）与从虾壳中获得的低聚壳聚糖（OC）相结合制备的纳米结构杂化材料，是可应用于绿色农业的环保物质。在本研究中，在生菜（Lactuca sativa L. var. longifolia）生长的不同阶段施加50mg/L的纳米结构杂化材料。大多数经杂化材料处理的生菜植株生长状况优于对照。将杂化材料施用于生菜的最合适时期是三周龄（H3W1）和四周龄（H4W1），以促进其生长。与对照生菜相比，H3W1处理的生菜最长叶片增加了7.14%，鲜重增加了8.51%，叶片数量增加了4.67%，总叶绿素含量增加了24.89%。H4W1处理的生菜最长叶片增加了9.52%，鲜重增加了26.27%，叶片数量增加了9.52%，总叶绿素含量增加了52.87%。因此，该杂化材料可作为一种在现代农业中具有巨大潜力的绿色农用化学品。它有助于替代和减少目前市场上使用的有毒化学肥料和植物保护产品的使用。
