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蚯蚓粪对日光温室袋培甜瓜生长及营养吸收的影响

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核农学报 2024年第2期38卷 345-354页

作者：王星林刘颖胡雨松孙周平刘义玲沈阳农业大学园艺学院/设施园艺省部共建教育部重点实验室/北方园艺设施设计与应用技术国家地方联合工程研究中心辽宁沈阳110866

为探明蚯蚓粪对日光温室基质袋培甜瓜生长及营养吸收的影响,本试验以薄皮甜瓜(Cucumis melo *** Makino)玉美人为试材,采用日光温室基质袋栽培方式,将蚯蚓(Pheretima)粪按不同比例与草炭和蛭石复配成8种栽培基质,通过对甜瓜生长指标、... 详细信息

为探明蚯蚓粪对日光温室基质袋培甜瓜生长及营养吸收的影响,本试验以薄皮甜瓜(Cucumis melo *** Makino)玉美人为试材,采用日光温室基质袋栽培方式,将蚯蚓(Pheretima)粪按不同比例与草炭和蛭石复配成8种栽培基质,通过对甜瓜生长指标、光合指标、植株营养含量、果实产量及品质的分析,筛选出甜瓜基质袋栽培适宜的蚯蚓粪有机肥配施比例。结果表明,在草炭蛭石复配基质中配施蚯蚓粪均可促进甜瓜的生长及营养吸收,以T5处理(蚯蚓粪∶草炭∶蛭石=4∶1∶5)促进效果最显著。T5处理植株株高、茎粗、根系活力、生物量和光合参数均优于其他处理。甜瓜生长期内,T5处理植株氮、磷、钾含量均较T1处理(蚯蚓粪∶草炭∶蛭石=0∶1∶1)显著提高,其中根中氮、磷和钾含量分别在定植后42、56和28 d差异最大,分别较T1处理显著增加63.9%、77.9%和74.4%;茎中氮、磷和钾含量分别在定植后56、28和14 d差异最大,分别较T1处理显著增加65.5%、81.8%和44.4%;叶中氮和钾含量在定植后42 d差异最大,分别较T1处理显著增加67.3%和29.9%,磷含量在定植后56 d差异最大,较T1处理显著增加70.3%。适宜蚯蚓粪配施量显著提高了甜瓜产量和品质。综上,蚯蚓粪有机肥在日光温室袋培甜瓜生产中适宜的应用比例为蚯蚓粪∶草炭∶蛭石=4∶1∶5。本研究结果为蚯蚓粪有机肥应用于设施甜瓜生产提供了理论依据。

关键词：蚯蚓粪栽培基质生长营养吸收

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High-performance porous carbon foams via catalytic pyrolysis of modified isocyanate-based polyimide foams for electromagnetic shielding

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Nano Research 2022年第8期15卷 6851-6859页

作者： zhouping sun Bin Shen Yang Li Jiali Chen Wenge Zheng Ningbo Key Lab of Polymer Materials Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China University of Chinese Academy of Sciences Beijing 100049China College of Chemistry and Pharmaceutical Engineering Huanghuai UniversityZhumadian 463000China

Porous carbon skeletons(PCSs)derived from isocyanate-based aromatic polyimide foams(PIFs)by high-temperature pyrolysis are very promising in the fabrication of high-performance polymer composite foams for electromagnetic interference(EMI)shielding due to their efficient conductive networks and facile preparation ***,severe volumetric shrinkage and low graphitization degree is not conducive to enhancing the shielding efficiency of the ***,ferric acetylacetonate and carbon-nanotube coating have been introduced in isocyanate-based PIFs to greatly suppress the serious shrinkage during pyrolysis and improve the graphitization degree of the final carbon foams through the Fe-catalytic graphitization process,thereby endowing them with better EMI-shielding performance even at lower pyrolysis temperature compared to the control ***,compressible polydimethylsiloxane(PDMS)composite foams with the as-prepared carbon foams as prefabricated PCSs have also been fabricated,which could provide not only stable shielding effectiveness(SE)performance even after a thousand compressions,but also multiple functions of Joule heating,thermal insulation and infrared *** study offers a feasible route to prepare high-performance PCSs in a more energy-efficient manner via PIF pyrolysis,which is very promising in the manufacture of multifunctional conductive polymer composite foams.

关键词： porous carbon skeletons isocyanate-based polyimide foams catalytic graphitization electromagnetic interference shielding multiple functions

Biomass-based aligned carbon networks with double-layer construction for tunable electromagnetic shielding with ultra-low reflectivity

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Journal of Materials Science & Technology 2022年第8期103卷 98-104页

作者： Jiali Chen Da Yi Xichen Jia Guoqing Wang zhouping sun Lihua Zhang Yinfeng Liu Bin Shen Wenge Zheng School of Materials Science and Engineering Shanghai UniversityShanghai 200444China Ningbo Key Lab of Polymer Materials Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China College of Microelectronics and Communication Engineering Chongqing UniversityChongqing 400044China

Nowadays,carbon frameworks derived from natural biomaterials have attracted extensive attention for electromagnetic interference(EMI)shielding due to their renewability and ***,it is critical and challenging to achieve effective regulation of shielding effectiveness(SE)as well as weaken the strong EM reflection of highly conductive biomass-based carbon ***,commercial cotton pads with oriented structure were selected as carbonaceous precursor to fabricate aligned carbon networks by pyrolysis,and the EMI SE of the samples with increased temperature of 800-1000℃ can be accurately controlled in the effective range of~21.7-29.1,~27.7-37.1 and~32.7-43.3 d B with high reflection coefficient of>0.8 by changing the cross-angle between the electric-field direction of incident EM waves and the fiber-orientation direction due to the occurrence of opposite internal electric ***,the further construction of Salisbury absorber-liked double-layer structure could result in an ultralow reflection coefficient of only~0.06 but enhanced SE variation range up to~38.7-49.3 d B during the adjustment of cross-angle,possibly due to the destructive interference of EM waves in the double-layer carbon *** work would provide a simple and effective way for constructing high-performance biomass carbon materials with adjustable EMI shielding and ultra-low reflectivity.

关键词： Aligned carbon networks Double-layer construction Tunable electromagnetic shielding Ultra-low reflectivity

PROTECTIVE ROLES OF D1 PROTEIN TURNOVER AND THE XANTHOPHYLL CYCLE IN TOMATO(SOLANUM LYCOPERSICUM)UNDER SUB-HIGH TEMPERATURE AND HIGH LIGHT STRESS

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Frontiers of Agricultural Science and Engineering 2021年第2期8卷 262-279页

作者： Tao LUA Jiazhi LU Mingfang QI zhouping sun Yufeng LIU Tianlai LI Horticulture Department Key Laboratory of Protected Horticulture of Ministry of EducationShenyang Agricultural UniversityShenyang 110866China National&Local Joint Engineering Research Center of Northern Horticultural Facilities Design&Application Technology(Liaoning) Shenyang 110866China Key Laboratory of Horticultural Crops Genetic Improvement(Ministry of Agriculture and Rural Affairs of China) Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081China.

D1 protein turnover and the xanthophyll cycle(XC)are important photo-protective mechanisms in plants that operate under adverse ***,streptomycin sulfate(SM)and dithiothreitol(DTT)were used in tomato plants as inhibitors of D1 protein turnover and XC to elucidate their photoprotec-tive impacts under sub-high temperature and high light conditions(HH,35°C,1000 limol m 2.S1).SM and DTT treatments significantly reduced the net photosynthetic rate,apparent quantum efficiency,maximum photochemical efficiency,and potential activity of photosystem II,leading to photoinhibition and a decline in plant biomass under *** increase in reactive oxygen species levels resulted in thylakoid membrane lipid *** addition,there were increased non-photochemical quenching and decreased chlorophyll pigments in SM and DTT application,causing an inhibition of D1 protein production at both transcriptional and translational ***,inhibition of D1 turnover caused greater photoinhibition than XC ***,the recovery levels of most photosynthesis indicators in DTT-treated plants were higher than in SM-treated *** findings support the view that D1 turnover has a more important role than XC in photoprotection in tomato under HH conditions.

关键词： D1 turnover photoinhibition photoprotection photosynthesis tomato xanthophyll cycle

设施蔬菜产业发展(五) 我国老旧蔬菜设施现状、问题及改造提升对策建议

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中国蔬菜 2024年第2期 1-5页

作者：冷杨孙周平魏晓明别之龙王克健夏宏义曹堃周泽宇全国农业技术推广服务中心北京100125 沈阳农业大学辽宁沈阳110866 北京市农林科学院智能装备技术研究中心北京100097 华中农业大学湖北武汉430070 十堰市经济作物研究所湖北十堰442000 十堰市农业科学院湖北十堰442000 中国农用塑料应用技术学会北京100125

目前我国正在加快建设现代设施农业,推进老旧蔬菜设施改造升级,促进设施蔬菜产业的高质量发展。但是对老旧设施的现状和存在问题缺乏系统梳理,对如何破解改造工作面临的困难和提升改造对策缺乏系统研究。通过调研我国主要设施蔬菜产区,... 详细信息

目前我国正在加快建设现代设施农业,推进老旧蔬菜设施改造升级,促进设施蔬菜产业的高质量发展。但是对老旧设施的现状和存在问题缺乏系统梳理,对如何破解改造工作面临的困难和提升改造对策缺乏系统研究。通过调研我国主要设施蔬菜产区,总结老旧设施现状及存在的主要问题,分析推进改造提升的主要制约因素,并提出明确工作重点、优化设施结构、完善工作机制、增强条件保障等方面的对策建议。

关键词：老旧蔬菜设施改造提升对策

Light quality regulates plant biomass and fruit quality through a photoreceptor-dependent HY5-LHC/CYCB module in tomato

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Horticulture Research 2023年第12期10卷 93-107页

作者： Jiarong Yan Juan Liu Shengdie Yang Chenghao Jiang Yanan Liu Nan Zhang Xin sun Ying Zhang Kangyou Zhu Yinxia Peng Xin Bu Xiujie Wang Golam Jalal Ahammed Sida Meng Changhua Tan Yufeng Liu zhouping sun Mingfang Qi Feng Wang Tianlai Li College of Horticulture Shenyang Agricultural UniversityShenyang 110866China College of Land and Environment Shenyang Agricultural UniversityShenyang 110866China College of Horticulture and Plant Protection Henan University of Science and TechnologyLuoyang 471023China Henan International Joint Laboratory of Stress Resistance Regulation and Safe Production of Protected Vegetables Luoyang471023China Key Laboratory of Protected Horticulture Ministry of EducationShenyang 110866China

Increasing photosynthesis and light capture offers possibilities for improving crop yield and provides a sustainable way to meet the increasing global demand for ***,the poor light transmittance of transparent plastic films and shade avoidance at high planting density seriously reduce photosynthesis and alter fruit quality in vegetable crops,and therefore it is important to investigate the mechanisms of light signaling regulation of photosynthesis and metabolism in tomato(Solanum lycopersicum).Here,a combination of red,blue,and white(R1W1B0.5)light promoted the accumulation of chlorophyll,carotenoid,and anthocyanin,and enhanced photosynthesis and electron transport rates by increasing the density of active reaction centers and the expression of the genes LIGHT-HARVESTING COMPLEX B(SlLHCB)and A(SlLHCA),resulting in increased plant *** addition,R1W1B0.5 light induced carotenoid accumulation and fruit ripening by decreasing the expression of LYCOPENEβ-CYCLASE(SlCYCB).Disruption of SlCYCB largely induced fruit lycopene accumulation,and reduced chlorophyll content and photosynthesis in leaves under red,blue,and white *** studies showed that ELONGATED HYPOCOTYL 5(SlHY5)directly activated SlCYCB,SlLHCB,and SlLHCA expression to enhance chlorophyll accumulation and ***,R1W1B0.5 light-induced chlorophyll accumulation,photosynthesis,and SlHY5 expression were largely decreased in the slphyb1cry1 ***,R1W1B0.5 light noticeably promoted photosynthesis,biomass,and fruit quality through the photoreceptor(SlPHYB1 and SlCRY1)-SlHY5-SlLHCA/B/SlCYCB module in ***,the manipulation of light environments in protected agriculture is a crucial tool to regulate the two vital agronomic traits related to crop production efficiency and fruit nutritional quality in tomato.

关键词： crops metabolism quality

园艺作物抗坏血酸生物合成中光的调控作用研究综述

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园艺学报 2022年第11期49卷 2502-2518页

作者：彭银霞张颖朱康友孙鑫张克敏孙周平齐明芳李天来王峰沈阳农业大学园艺学院沈阳110866 设施园艺教育部重点实验室北方园艺设施设计与应用技术国家地方联合工程研究中心(辽宁)沈阳110866 沈阳农业大学土地与环境学院沈阳110866 河北省辛集市植保植检站河北辛集052360

总结了光对园艺作物抗坏血酸生物合成与代谢的调控作用,解析了光合作用和呼吸作用间的相互作用对抗坏血酸合成和代谢的影响,重点阐明了光调节关键因子对园艺作物抗坏血酸生物合成的调控机制和信号网络,以期为解析光调控植物抗坏血酸生... 详细信息

总结了光对园艺作物抗坏血酸生物合成与代谢的调控作用,解析了光合作用和呼吸作用间的相互作用对抗坏血酸合成和代谢的影响,重点阐明了光调节关键因子对园艺作物抗坏血酸生物合成的调控机制和信号网络,以期为解析光调控植物抗坏血酸生物合成和代谢的分子机制及调控网络奠定理论基础,为利用基因工程和LED补光技术增加园艺作物抗坏血酸含量和培育功能性园艺产品提供理论和实践指导。

关键词：光抗坏血酸园艺作物光合作用呼吸作用

日光温室太阳能水循环系统冬季与夏季试验效果

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太阳能学报 2016年第9期37卷 2306-2313页

作者：佟雪姣孙周平李天来刘义玲设施园艺省部共建教育部重点实验室沈阳110866 辽宁省设施园艺重点实验室沈阳110866 辽宁省设施蔬菜工程实验室沈阳110866 沈阳农业大学园艺学院沈阳110866

为了提高北方地区冬季日光温室的温度，保障作物越冬，该试验以太阳能为热源，以水为蓄热介质，以PC阳光板为集／散热装置，研究日光温室太阳能水循环系统冬季的蓄热增温效果以及夏季的吸热降温效果。试验结果表明：5种颜色阳光板中，... 详细信息

为了提高北方地区冬季日光温室的温度，保障作物越冬，该试验以太阳能为热源，以水为蓄热介质，以PC阳光板为集／散热装置，研究日光温室太阳能水循环系统冬季的蓄热增温效果以及夏季的吸热降温效果。试验结果表明：5种颜色阳光板中，褐色阳光板的蓄热量最多，达到191．5kJ／（m2·d），比蓄热量最少的透明阳光板增加15．2％。不同厚度阳光板中，8mm透明阳光板的蓄热量最多，为198．2kJ／（m2·d），分别较6、10mm阳光板增加19．2％和4．5％。而当流量为4．4，4．5L／h时，透明8mm阳光板吸收的热量最多，蓄热效果最好。冬季晴天，日光温室内光照条件好，太阳能水循环系统日蓄热量为159．8MJ，可将温室内夜间温度提高3—5℃，集热效率为54．5％，蓄热增温效果明显。同时该系统在夏季可使温室中午的温度降低5～8℃，集热效率为54．6％。太阳能水循环系统能提高太阳能利用效率，可实现日光温室的高效节能，为装配式日光温室结构的发展奠定基础。

关键词：日光温室太阳能水循环蓄热量集热效率

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漂浮式波浪能装置能量转换系统研究

机械工程学报 2012年第24期48卷 141-146页

作者：盛松伟游亚戈张亚群吴必军孙洲平中国科学院广州能源研究所广州510640 中国科学院可再生能源与天然气水合物重点实验室广州510640 中国科学院大学北京100049

能量俘获系统与能量转换系统构成整个波浪能装置,其中能量转换系统是波浪能利用的关键环节。设计一套适用于漂浮式波浪能装置上的液压式能量转换系统,包括液压缸、液压马达、蓄能稳压系统、液压控制系统及发电机。液压控制系统中采用特... 详细信息

能量俘获系统与能量转换系统构成整个波浪能装置,其中能量转换系统是波浪能利用的关键环节。设计一套适用于漂浮式波浪能装置上的液压式能量转换系统,包括液压缸、液压马达、蓄能稳压系统、液压控制系统及发电机。液压控制系统中采用特制的'液压自治控制系统',用于根据发电许可最大压力与最小压力控制液压系统能量释放与储蓄动作,并将最大压力提高到23 MPa,最小压力提高到9 MPa。大量试验数据表明,压力提高后的液压转换系统较之以前的液压系统在效率和可靠性方面有明显的改进,对波浪能海况试验样机研发意义重大。

关键词：液压式能量转换系统二级转换转换效率液压控制