项目来源

国家重点研发计划(NKRD)

项目主持人

曹兵

项目受资助机构

北京市农林科学院

立项年度

2017

立项时间

未公开

项目编号

2017YFD0200705

项目级别

国家级

研究期限

未知 / 未知

受资助金额

993.00万元

学科

化学肥料和农药减施增效综合技术研发

学科代码

未公开

基金类别

未公开

关键词

纳米复合 ; 包膜缓控释 ; 控释专用肥 ; Nano-composite ; Coated slow and controlled release ; Controlled release fert ilizer

参与者

肖艳；王孟；陈宝成

参与机构

领先生物农业股份有限公司；南华大学；山东农业大学

项目标书摘要：针对现有控释肥产品膜层控释性能不稳定、价格偏高、生产规模偏低和产品专用性不突出等不足，利用纳米材料特有的尺寸效应和材料复合化形成的性能互补增强机制，开展了纳米复合包膜缓控释肥研制与应用研究。在聚烯烃纳米复合材料研究中，有机改性蒙脱土在基体树脂中有良好的分散性，纳米粒子加入明显提升了LLDPE的模量和热转变温度，一定程度上会降低LLDPE的结晶度。选用有机插层改性蒙脱土增加了聚氨酯和液化淀粉纳米复合包膜控释肥的膜层的热稳定性，同时增加了包膜控释肥的控释性能。研发并初步集成成功一体式转鼓自动连续化工艺和装备，采用多点连续喷涂包膜及全套设备的自动控制。在水稻、玉米等多种作物上，采用田间试验开展了控释专用肥及高效施肥技术对作物产量、氮肥利用率、氮素损失等的影响。结果表明控释专用肥在节肥10%-30%的情况下，农作物增产5%以上，肥料利用率提高5个百分点以上。此外，施用控释肥降低了氮素损失和温室气体排放。在控释专用肥研发与示范推广方面：研发成功针对玉米、水稻等多种作物的缓控释专用肥，在河北、湖南等地开展了控释专用肥示范与推广，示范推广缓控释专用肥12.6万亩，施用缓控释肥可减少化肥施用量14.4~27.7%,增产5%~22.9%,节肥增产效果明显。

Application Abstract: Due to the shortcomings of the current controlled-release fertilizer(CRF)products,such as unstable film release performance,high price,low production scale and low product specificity,the research and application of nano composite coated slow-release fertilizer were carried out by using the unique size effect of nano materials and the complementary enhancement mechanism of material compounding.In the study of polyolefin nanocomposites,the organic modified montmorillonite has good dispersion in the matrix resin.The modulus and thermal transition temperature of LLDPE were significantly improved by addition nano particles,and reduced the crystallinity of LLDPE to a certain extent.The thermal stability of polyurethane and liquefying starch nanocomposite coating controlled-release fertilizer and the controlled-release performance of coating controlled-release fertilizer were increased by using organic intercalation modified montmorillonite.Automatic continuous technology and equipment of integrated drum with multi-point continuous spraying coating and automatic control of a complete set of equipment were researched,development and initial integration of successful integrated.The field experiments were carried out to study the effects of controlled-release fertilizer and high-efficiency fertilization technology on crop yield,nitrogen use efficiency and nitrogen loss in rice,corn and other crops.The results showed that the yield of crops increased by more than 5%and the fertilizer utilization rate increased by more than 5%under the condition of saving 10%~30%fertilizer.In addition,nitrogen loss and greenhouse gas emissions were reduced by application of controlled-release fertilizer.In the aspect of research and development,demonstration and promotion of CRFs:the CRFs for corn,rice and other crops were successfully researched and developed,and the demonstration and promotion of CRFs were carried out in Hebei,Hunan and other places.The demonstration and promotion of CRFs was 126,000 mu.The application of CRFs can reduce the amount of fertilizer application by 14.4~27.7%,increase production by 5%~22.9%,and save fertilizer and increase production significantly.

项目受资助省

北京市