首页|温度敏感型缓/控释肥料的温度响应特征、养分释放性能与温敏机理研究进展

温度敏感型缓/控释肥料的温度响应特征、养分释放性能与温敏机理研究进展

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
温度是影响缓/控释肥料养分释放特性的重要因素,开发温度敏感型缓/控释肥料可以使肥料养分释放与作物养分需求更加匹配,从而提高肥料利用效率,促进农业可持续发展.本文综述了聚酰胺类、聚醚类、聚酯类、多糖类以及温敏聚氨酯等常见的温敏聚合物材料的来源、类型和机理,详细阐述了聚N-异丙基丙烯酰胺(PNIPAM)、聚N-乙烯基己内酰胺(PNVCL)、环氧乙烷/环氧丙烷嵌段共聚物(EO/PO)、甲基纤维素和温敏聚氨酯等常见温敏聚合物材料用作温敏缓/控释肥料包膜材料的国内外研究进展,并评估了其在温敏缓/控释肥料中应用的可行性与优缺点.根据温敏特性,将温敏缓/控释肥料分为低临界溶解温度(LCST)响应型和结晶转变温度(Tm)/玻璃化转变温度(Tg)响应型两大类,并详细总结了这两种类型的制备方法、特征、养分释放性能以及分子作用机制.最后,指出温敏型缓/控释肥料的研发尚处于初级阶段,未来应深入开展天然高分子温敏材料的基础研究和创新,筛选绿色可生物降解温敏聚氨酯材料,研发作物和区域专用型温敏缓/控释肥料.
Temperature sensitivity,nutrient release performance,and temperature sensitive mechanism of temperature-sensitive slow/controlled-release fertilizers:A comprehensive research review
Temperature is a crucial factor that influences the growth and development of crops.Developing temperature-sensitive slow/controlled-release fertilizers could better synchronize the release of nutrient with crop nutrient requirements,thereby enhance fertilizer utilization efficiency.We reviewed the sources,types,and mechanisms of common thermosensitive polymer materials such as polyamides,polyether,polyester,polysaccharides,and thermosensitive polyurethane and so on.We also reviewed the research progress of common thermosensitive polymer materials such as poly(N-isopropylacrylamide)(PNIPAM),poly(N-vinylcaprolactam)(PNVCL),ethylene oxide/propylene oxide block copolymer(EO/PO),methylcellulose,and thermosensitive polyurethane as temperature-responsive coatings for thermosensitive controlled-release fertilizer.The feasibility,advantages and disadvantages of these materials in thermosensitive controlled-release fertilizer applications were discussed detailedly.Based on the temperature-responsive properties of polymer materials,the current slow/controlled-release fertilizers are categorized into two groups:low critical solution temperature sensitive(LCST)and crystalline melting transition temperature(Tm)/glass transition temperature(Tg)sensitive slow/controlled-release fertilizers.The preparation methods,thermal properties,nutrient release performance,and molecular mechanisms of these two types are comprehensively reviewed in this study.Generally speaking,the research and development of thermosensitive controlled-release fertilizers are still in their infancy.The recent researches should be focused on the fundamental research and innovation of natural high molecular weight thermosensitive materials,screen green and biodegradable thermosensitive polyurethane materials,and the develop thermosensitive controlled-release fertilizers specified to crops and regions.

temperature-sensitive polyurethaneslow/controlled release fertilizertemperature-sensitive fertilizertemperature-responsive characteristicnutrient release mechanism

李娟、杨相东

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中国农业科学院农业资源与农业区划研究所/北方干旱半干旱耕地高效利用全国重点实验室/农业农村部植物营养与肥料重点实验室,北京 100081

温敏聚氨酯 缓/控释肥料 温度敏感型肥料 温度响应特征 养分释放机理

国家自然科学基金项目国家重点研发计划项目中央级公益性科研院所基本科研业务费专项

323728192022YFD17006051610132023005

2024

10.11674/zwyf.2024050

植物营养与肥料学报
中国植物营养与肥料学会

植物营养与肥料学报

CSTPCD北大核心
影响因子：2.331
ISSN：1008-505X
年,卷(期)：2024.30(9)