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Effects of Different Potassium (K) Fertilizer Rates on Yield Formation and Lodging of Rice

Phyton-International Journal of Experimental Botany 2021年第3期90卷 815-826页

作者： Tantan Zhang Xiaoping He binglin chen Longxin He Xiangru Tang State Key Laboratory for conservation and Utilization of Subtropical Agro-bioresources College of AgricultureSouth China Agricultural UniversityGuangzhou510642China Scientific Observing and Experimental Station of Crop Cultivation in South China Ministry of AgricultureGuangzhou510642China Guangdong Tianhe Agricultural Materials Co. Ltd.Guangzhou510642China

As one of the most important nutrients for plants,potassium(K)has substantial effects on growth and development of *** study was conducted in three different sites in South China in late season in 2019 with the objective to study the effects of different applied amounts of K fertilizer on yield formation and lodging of *** K fertilizer treatments,K_(0):0 kg potassium oxide(K_(2)O)ha^(−1)(control);K_(1):64.20 kg K_(2)O ha^(−1);K_(2):128.55 kg K_(2)O ha^(−1) and K_(3)153.90 kg K_(2)O ha^(−1) were applied in the field *** results showed that K_(2) and K_(3) treatments significantly increased panicle number per unit area,grain number per panicle,seed-setting rate and the grain yield of rice compared with K_(0) *** net photosynthetic rates were recorded in K_(2) and K_(3) treatments than K_(0) treatment at tillering stage,heading stage and maturity stage.K fertilizer treatments also increased the chlorophyll content and dry matter accumulation by 6.16–23.52%and 21.32–64.59%compared with K_(0) treatment,***,the total N and K accumulation in the aboveground tissues of rice significantly increased under K_(2) and K_(3) treatments compared with K_(0) ***,compared with K_(0) treatment,K fertilizer treatments significantly enhanced the breaking-resistant strength by 40.94–144.24%and reduced the lodging index of rice by 13.14–36.72%.

关键词： Lodging net photosynthetic rate potassium rice SPAD value

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Effect of N fertilization rate on soil alkalihydrolyzable N, subtending leaf N concentration,fiber yield, and quality of cotton

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The Crop Journal 2016年第4期4卷 323-330页

作者： binglin chen Hongkun Yang Weichao Song Chunyu Liu Jiao Xu Wenqing Zhao Zhiguo Zhou Key Laboratory of Crop Physiology Ecology and Production Management Nanjing Agricultural UniversityJiangsu Collaborative Innovation Center for Modern Crop Production

Soil alkali-hydrolyzable nitrogen, which is sensitive to N fertilization rate, is one of the indicators of soil nitrogen supplying capacity. Two field experiments were conducted in Dongtai(120°19″ E, 32°52″ N), Jiangsu, China in 2009 and Dafeng(120°28″ E, 33°12″ N), Jiangsu province, China in 2010. Six nitrogen rates(0, 150, 300, 375, 450, and 600 kg ha^(-1)) were used to study the effect of N fertilization rate on soil alkali-hydrolyzable nitrogen content(SAHNC), subtending leaf nitrogen concentration(SLNC), yield, and fiber quality. In both Dongtai and Dafeng experiment station, the highest yield(1709 kg ha^(-1)), best quality(fiber length 30.6 mm, fiber strength 31.6 c N tex^(-1), micronaire 4.82), and highest N agronomic efficiency(2.03 kg kg^(-1)) were achieved at the nitrogen fertilization rate of 375 kg ha^(-1). The dynamics of SAHNC and SLNC could be simulated with a cubic and an exponential function,respectively. The changes in SAHNC were consistent with the changes in SLNC. Optimal average rate(0.276 mg day^(-1)) and duration(51.8 days) of SAHNC rapid decline were similar to the values obtained at the nitrogen rate of 375 kg ha^(-1)at which cotton showed highest fiber yield, quality, and N agronomic efficiency. Thus, the levels and strategies of nitrogen fertilization can affect SAHNC dynamics. The N fertilization rate that optimizes soil alkali-hydrolyzable nitrogen content would optimize the subtending leaf nitrogen concentration and thereby increase the yield and quality of the cotton fiber.

关键词： Cotton(Gossypium hirsutum L) Soil alkali-hydrolyzable nitrogen Subtending leaf nitrogen concentration Fiber yield Fiber properties Nitrogen use efficiency

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Ultrasensitive Protein Concentration Characterization Based on Weak Measurements

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Photonic Sensors 2022年第3期12卷 10-16页

作者： Bowen SONG binglin chen chen YU Hua YANG College of Computer Science and Electronic Engineering Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of EducationHunan UniversityChangsha 410082China State Key Laboratory of Integrated Optoelectronics Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China

An optical rotation bio-sensor based on the photonic spin Hall effect was established and applied to detecting the concentration varieties of chiral *** optical rotation,introduced by sample solutions,was exploited to modulate the postselected polarization of a weak measurement *** work has been done in the case of glucose and ***,little attention has been paid for biomolecules,such as proteins and amino *** this modulation,the optical rotation can be determined through the direction and spin accumulation of light spots,thus mirroring the concentration of solutions.A resolution of 2×10^(-4) degree was achieved.

关键词： Weak measurements the photonic spin Hall effect optical rotation bio-sensor

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Highly Flexible and Broad‑Range Mechanically Tunable All‑Wood Hydrogels with Nanoscale Channels via the Hofmeister Effect for Human Motion Monitoring

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Nano-Micro Letters 2022年第5期14卷 192-205页

作者： Guihua Yan Shuaiming He Gaofeng chen Sen Ma Anqi Zeng binglin chen Shuliang Yang Xing Tang Yong Sun Feng Xu Lu Lin Xianhai Zeng College of Energy Xiamen UniversityXiamen 361102People’s Republic of China State Key Laboratory of Pulp and Paper‑Making Engineering South China University of TechnologyGuangzhou 510640People’s Republic of China Beijing Key Laboratory of Lignocellulosic Chemistry Beijing Forestry UniversityNo.35Tsinghua East RoadHaidianBeijing 100083People’s Republic of China

Wood-based hydrogel with a unique anisotropic structure is an attractive soft material,but the presence of rigid crystalline cellulose in natural wood makes the hydrogel less *** this study,an all-wood hydrogel was constructed by cross-linking cellulose fibers,polyvinyl alcohol(PVA)chains,and lignin molecules through the Hofmeister *** all-wood hydrogel shows a high tensile strength of 36.5 MPa and a strain up to~438%in the longitudinal direction,which is much higher than its tensile strength(~2.6 MPa)and strain(~198%)in the radial direction,*** high mechanical strength of all-wood hydrogels is mainly attributed to the strong hydrogen bonding,physical entanglement,and van der Waals forces between lignin molecules,cellulose nanofibers,and PVA *** to its excellent flexibility,good conductivity,and sensitivity,the all-wood hydrogel can accurately distinguish diverse macroscale or subtle human movements,including finger flexion,pulse,and swallowing *** particular,when“An Qi”was called four times within 15 s,two variations of the pronunciation could be *** recyclable,biodegradable,and adjustable mechanical properties,the all-wood hydrogel is a multifunctional soft material with promising applications,such as human motion monitoring,tissue engineering,and robotics materials.

关键词： Wood hydrogel Hofmeister effect Tunable mechanical strength Flexible Biodegradable

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One-pot synthesis of 2,5-bis(hydroxymethyl)furan from biomass derived 5-(chloromethyl)furfural in high yield

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Journal of Energy Chemistry 2023年第1期76卷 421-428,I0011页

作者： binglin chen Yunchao Feng Sen Ma Weizhen Xie Guihua Yan Zheng Li Jonathan Sperry Shuliang Yang Xing Tang Yong Sun Lu Lin Xianhai Zeng College of Energy Xiamen UniversityXiamen 361102FujianChina Fujian Engineering and Research Centre of Clean and High-valued Technologies for Biomass Xiamen Key Laboratory of Clean and High-valued Utilization for BiomassXiamen 361102FujianChina Centre for Green Chemical Science University of AucklandAuckland 1142New Zealand

5-(Chloromethyl)furfural(CMF),as a new platform molecular,has become a hot topic in the field of ***,the one-pot conversion of CMF to 2,5-bis(hydroxymethyl)furan(BHMF)in the water phase was demonstrated for the first time.A 91%BHMF yield was obtained over Ru/Cu Oxcatalyst,and BHMF was mainly produced by the consecutive hydrolysis and hydrogenation of CMF with 5-hydroxymethylfurfural(HMF)as an *** studies revealed that the conversion of HMF to BHMF was the rate-determining ***,the characterizations and density functional theory(DFT)calculations further revealed the lower electron density of Ru NPs in Ru/Cu Oxcatalyst,resulting in a larger adsorption energy and a smaller free energy difference for the formation of *** present findings offered a new pathway for biomass-derived diol production through CMF as a potential source.

关键词： 2 5-Bis(hydroxymethyl)furan Hydrolysis Hydrogenation Biomass conversion Heterogeneous catalysis

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Base-free oxidative esterification of 5-hydroxymethylfurfural to furan-2,5-dimethylcarboxylate over n-doped carbon-supported Co/Fe bimetallic catalyst under batch-operation or continuous-flow conditions

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Journal of Energy Chemistry 2022年第12期75卷 95-108,I0004页

作者： Weizhen Xie binglin chen Wenlong Jia Huai Liu Zheng Li Shuliang Yang Xing Tang Xianhai Zeng Yong Sun Xixian Ke Tianyuan Li Huayu Fang Lu Lin Xiamen Key Laboratory of Clean and High-valued Applications for Biomass Fujian Engineering and Research Center of Clean and High-valued Technologies for BiomassCollege of EnergyXiamen UniversityXiamen 361102FujianChina BiomassChem Group Faculty of Chemical EngineeringKunming University of Science and TechnologyKunming 650500YunnanChina Key Lab for Sport Shoes Upper Materials of Fujian Province Fujian Engineering and Research Center for New Functional Fiber Materials(Fujian Huafeng New Material Co.Ltd.Putian Dakai New Material Co.Ltd.)Putian 351144FujianChina

Developing an efficient and easily available catalyst for the selective conversion of biomass-derived 5-hydroxymethylfurfural(HMF)into furan-2,5-dimethylcarboxylate(FDMC),a valuable biomass-based monomer,remains a high demand but formidable ***,a facile strategy for the synthesis of N-doped carbon-supported Co/Fe bimetallic catalyst(CoFe-NC)was developed,which provided an outstanding FDMC yield of 93%in a batch reactor(base-free,80℃,2 bar O_(2),4 h).Interestingly,CoFe-NC also gave a high FDMC yield of 91%under continuous-flow conditions for 80 h(5 bar O_(2),80℃,GHSV 1320 h^(-1),LHSV 0.6 h^(-1),base-free).Notably,it is the first time that a non-noble catalyst gave such a high FDMC yield under continuous-flow *** introduction of Fe could greatly improve both the electron intensity of Co-N_(x)species and basicity of the catalyst,which endowed CoFe-NC with improved O_(2)activation capacity and enhanced dehydrogenation activity for the oxidation-esterification of *** work delineates the efficient strategy on the construction of N-doped carbon-supported non-noble catalyst,which might open a new avenue for developing highly efficient catalyst for FDMC production.

关键词： 5-Hydroxymethylfurfural Furan-2,5-dimethylcarboxylate Oxidation-esterification Catalysis Co-N_(x)sites

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Effects of mepiquat chloride on yield and main properties of cottonseed under different plant densities

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Journal of Cotton Research 2019年第2期2卷 77-86页

作者： ZHAO Wenqing YAN Qiang YANG Hongkun YANG Xiaoni WANG Leran chen binglin MENG Yali ZHOU Zhiguo Key Laboratory of Crop Ecophysiology and Management Ministry of Agriculture Nanjing Agricultural UniversityNanjing 210095JiangsuChina Jiangsu Collaborative Innovation Center for Modern Crop Production(JCIC-MCP) Nanjing Agricultural UniversityNanjing 210095JiangsuChina

Background:Cottonseed oil and protein content as well as germination traits are major indicators of seed ***,the responses of these indicators to plant density and mepiquat chloride(MC)are still *** investigate plant density and MC effects on cotto nseed yield and main quality parameters,we con ducted a twoyear field experiment including four plant densities(1.35,2.55,3.75 and 4.95 plants·m^-2)and two closes of MC(0 and 135g·hm^-2)in Dafeng,Jiangsu Province,in 2013 and ***:The application of MC reduced plant height,fruit branch length and fruiting branch number under different plant densities,resulting in a lower and more compact plant *** yield showed a nonlinear increase as plant density increasing and achieved the highest value at 3.75 plants·m^-2,regardless of MC *** significant interactio ns were found between plant density and MC for cotton seed yield and quality *** 100-seed weight,cottonseed oil content and vigor index significantly decreased as plant density increased,while these parameters significantly increased with MC applying under different plant *** vigor index was positively correlated with 100-seed weight and seed oil con tent across different plant densities and MC ***:Thus,application of MC could realize a win-win situation between cottonseed yield and main quality parameters under various densities;and plant density of 3.75 plants·m^-2 combined with 135 g·hm^-2 of MC applying is optimal for high cottonseed yield and quality in this cotton production area.

关键词： Mepiquat chloride Plant density Cottonseed yield Oil content Seed germination

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混合过滤器和封装器启发式判别籽棉成熟度

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计算机研究与发展 2013年第2期50卷 269-277页

作者：王玲刘善军陈兵林姬长英江苏省智能化农业装备重点实验室(南京农业大学) 南京210031 江西农业大学农学院南昌330045 农业部作物生长调控重点开放实验室(南京农业大学) 南京210095

描述田间籽棉成熟度的形态结构和边界轮廓特征集存在维数灾难,其特征选择问题属于NP难题.基于交叉验证,提出了一种过滤器下浮动搜索并基于封装器停止搜索的求解算法.在训练集上以最大类可分性测量值为过滤器的评估函数启发式搜索最优l... 详细信息

描述田间籽棉成熟度的形态结构和边界轮廓特征集存在维数灾难,其特征选择问题属于NP难题.基于交叉验证,提出了一种过滤器下浮动搜索并基于封装器停止搜索的求解算法.在训练集上以最大类可分性测量值为过滤器的评估函数启发式搜索最优l维特征子集(l=1,2,3,…),启发式规则包括最优特征组合和浮动搜索;在训练集上以Bayes分类器的误分率为封装器的评估函数对最优l维特征子集建模,模型在验证集上的平均误分率极小处产生的最优特征子集的容量为6,它们在预测集上的平均识别率为87.61%.在相关研究工作所涉及的40个数据集上验证算法的有效性,结果表明,在29个数据集上算法的分类性能好,执行效率高.

关键词：籽棉成熟度特征选择过滤器封装器启发式搜索

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基于图像特征选择识别田间籽棉品级

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农业工程学报 2011年第7期27卷 190-195页

作者：王玲陈兵林刘善军姬长英南京农业大学工学院南京210031 南京农业大学农业部作物生长调控重点开放实验室南京210095 江西农业大学农学院南昌330045

依据中国籽棉品级文字标准,在HSI颜色空间提取了反映籽棉颜色和杂质含量的14个纹理特征以及反映棉瓣大小、结构的16个形状特征,该特征集存在维数灾难,需要进行降维。面向籽棉品级识别的特征选择问题属于非多项式(NP)难题,该文基于交叉... 详细信息

依据中国籽棉品级文字标准,在HSI颜色空间提取了反映籽棉颜色和杂质含量的14个纹理特征以及反映棉瓣大小、结构的16个形状特征,该特征集存在维数灾难,需要进行降维。面向籽棉品级识别的特征选择问题属于非多项式(NP)难题,该文基于交叉验证、混合Filter-Wrapper和启发式搜索提出了一种求解算法。首先,以最优特征组合和浮动搜索为启发式搜索策略,基于10-折交叉验证在每一个训练集上用Filter启发式搜索最优l维特征子集(l=1,2,3,…,30),评价函数为类可分性准则;其次,在10个训练集上用Wrapper从最优l维特征子集中选择最优特征子集的容量(l=1,2,3,…,30),评价函数为Bayes分类器的误分率,10个验证集的平均误分率极小处产生最优特征子集的容量;最后,在最优特征子集容量处验证预测集的平均误分率。结果表明,所选择的10个最优特征子集在预测集上的平均识别率为88.39%,混合Filter-Wrapper和浮动搜索的特征选择算法效率高、效果好。

关键词：籽棉品级特征提取交叉验证 Filter 启发式搜索 Wrapper

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基于竞争学习网络的田间籽棉图像分割

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农业工程学报 2008年第10期24卷 156-160页

作者：王玲姬长英刘善军陈兵林王萍南京农业大学工学院南京210031 江西农业大学农学院南昌330045 南京农业大学农业部作物生长调控重点开放实验室南京210095 江西农业大学成人教育学院南昌330045

为了正确识别田间籽棉,将籽棉和铃壳、绿叶、根茎、土地等自然背景视为二个类别,基于竞争学习网络进行了图像分割。从多幅典型的籽棉图像中选取10000个像素作为训练样本,并为它们贴上类别标签,在HSI、Lab、Ohta、RGB颜色空间下对训练样... 详细信息

为了正确识别田间籽棉,将籽棉和铃壳、绿叶、根茎、土地等自然背景视为二个类别,基于竞争学习网络进行了图像分割。从多幅典型的籽棉图像中选取10000个像素作为训练样本,并为它们贴上类别标签,在HSI、Lab、Ohta、RGB颜色空间下对训练样本的颜色特征及其组合进行K-均值聚类,选取了误分率普遍较低的RGB颜色空间,其B值的误分率尤其低。在RGB颜色空间下,用训练样本的R、G、B组合或B值一次性地训练了竞争学习网络,将图像的全部像素输入网络进行测试,同时与K-均值聚类比较,形态学滤波去噪后的结果表明,基于B值的竞争学习网络较优,用907幅籽棉图像对其进行仿真的精度达92.94%。该方法结合了有监督的学习算法,避免了传统K-均值聚类的反复迭代和过拟合现象,提高了图像分割的效率和精度。

关键词：田间籽棉图像分割颜色空间选取竞争学习网络形态学滤波

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