Novel Controlled Release Microspheric Soil Conditioner Based on the Temperature and pH Dual-Stimuli Response

被引：0
|
作者：
Yang, Fan [1 ]
Wang, Jincheng [1 ]
Song, Shiqiang [1 ]
Rao, Pinhua [1 ]
Wang, Runkai [1 ]
Liu, Shihui [2 ,3 ,4 ]
Xu, Liqi [5 ]
Zhang, Feng [6 ]
机构：
[1] College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai,201620, China
[2] Key Laboratory of Quality and Safety Regulating of Horticultural Crop Products, Ministry of Agriculture, Shanghai,201210, China
[3] Shanghai Sunqiao Agricultural Science and Technology Company, Limited, Shanghai,201210, China
[4] Hunan Agricultural University, Changsha, Hunan,410128, China
[5] Shanghai Huita Industrial Company, Limited, Shanghai,201616, China
[6] Shanghai Songfeng Fruit and Vegetable Cooperative, Shanghai,200000, China
来源：
Journal of Agricultural and Food Chemistry | 2020年 / 68卷 / 30期
关键词：
A novel type of temperature and pH dual-stimuli-responsive microspheric soil conditioner was prepared for the controlled release of urea. First; poly(N-isopropylacrylamide-co-methacrylic acid) [P(NIPAM-co-MAA)] was synthesized; and the microspheric soil conditioner was prepared on the basis of chitosan-coated P(NIPAM-co-MAA) via the emulsion cross-linking method. The structure and morphology of the microsphere were characterized by Fourier transform infrared spectroscopy; hydrogen nuclear magnetic resonance; polarization optical microscopy; and scanning electron microscopy. The microsphere showed controlled release behavior in different temperature and pH conditions; indicating good stimuli responsiveness. The plant experiment revealed that the microsphere can effectively promote plant growth in acidified soil and high-temperature conditions; and the pH value of acidified soil could be improved. In addition; the microsphere possessed good biodegradation property in the soil. Therefore; the multi-responsive microspheric soil conditioner owns a great potential value to amend soil conditions and promote plant growth in agriculture applications. Copyright © 2020 American Chemical Society;
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页码：7819 / 7829
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