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Research progress on the effects of soil freeze-thaw on plant physiology and ecology: Research progress on the effects of soil freeze-thaw on plant physiology and ecology 土壤冻融对植物生理生态影响的研究进展:土壤冻融对植物生理生态影响的研究进展
Q3 Agricultural and Biological Sciences Pub Date : 2014-06-25 DOI: 10.3724/SP.J.1011.2014.30941
Zi-yin Du, Yanjiang Cai, Xiaodan Wang, Yan Yan, Xu-yang Lu, Shuzhen Liu
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引用次数: 5
Effects of four fumigants on dissolved soil nitrogen transformation and microbial biomass: Effects of four fumigants on dissolved soil nitrogen transformation and microbial biomass 4种熏蒸剂对土壤溶解态氮转化和微生物生物量的影响
Q3 Agricultural and Biological Sciences Pub Date : 2014-06-25 DOI: 10.3724/SP.J.1011.2014.30784
T. Ma, D. Yan, L. Mao, Qiuxia Wang, Yuan Li, Canbin Ouyang, Meixia Guo, A. Cao
{"title":"Effects of four fumigants on dissolved soil nitrogen transformation and microbial biomass: Effects of four fumigants on dissolved soil nitrogen transformation and microbial biomass","authors":"T. Ma, D. Yan, L. Mao, Qiuxia Wang, Yuan Li, Canbin Ouyang, Meixia Guo, A. Cao","doi":"10.3724/SP.J.1011.2014.30784","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30784","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69972043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of Beauveria bassiana and acephate on rice antioxidant status and soil nitrogen circulation: Effects of Beauveria bassiana and acephate on rice antioxidant status and soil nitrogen circulation 球孢白僵菌和甲胺磷对水稻抗氧化状态和土壤氮循环的影响
Q3 Agricultural and Biological Sciences Pub Date : 2014-06-25 DOI: 10.3724/SP.J.1011.2014.30803
W. Du, P. Jiang, Jun-Xian Zhou, Y. Bu, Changhong Liu, C. Dai
{"title":"Effects of Beauveria bassiana and acephate on rice antioxidant status and soil nitrogen circulation: Effects of Beauveria bassiana and acephate on rice antioxidant status and soil nitrogen circulation","authors":"W. Du, P. Jiang, Jun-Xian Zhou, Y. Bu, Changhong Liu, C. Dai","doi":"10.3724/SP.J.1011.2014.30803","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30803","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69972107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of row spacing and seeding rate on radiation use efficiency and grain yield of wheat: Effects of row spacing and seeding rate on radiation use efficiency and grain yield of wheat 行距和播量对小麦辐射利用效率和籽粒产量的影响:行距和播量对小麦辐射利用效率和籽粒产量的影响
Q3 Agricultural and Biological Sciences Pub Date : 2014-06-25 DOI: 10.3724/SP.J.1011.2014.30568
Lanfang Wu, Zhu Ou-Yang
{"title":"Effects of row spacing and seeding rate on radiation use efficiency and grain yield of wheat: Effects of row spacing and seeding rate on radiation use efficiency and grain yield of wheat","authors":"Lanfang Wu, Zhu Ou-Yang","doi":"10.3724/SP.J.1011.2014.30568","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30568","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69970968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Screening, identification and characterization of antagonistic bacteria against Ralstonia solanacearum: Screening, identification and characterization of antagonistic bacteria against Ralstonia solanacearum 番茄青枯病拮抗细菌的筛选、鉴定和鉴定:番茄青枯病拮抗细菌的筛选、鉴定和鉴定
Q3 Agricultural and Biological Sciences Pub Date : 2014-06-25 DOI: 10.3724/SP.J.1011.2014.31041
Xiaoran Yan, Qian Xu, Dong Yu, Lin Yong, F. Kong, Cheng-sheng Zhang, Jing Wang, Yufeng Song
{"title":"Screening, identification and characterization of antagonistic bacteria against Ralstonia solanacearum: Screening, identification and characterization of antagonistic bacteria against Ralstonia solanacearum","authors":"Xiaoran Yan, Qian Xu, Dong Yu, Lin Yong, F. Kong, Cheng-sheng Zhang, Jing Wang, Yufeng Song","doi":"10.3724/SP.J.1011.2014.31041","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.31041","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69972380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of red-edge parameters for spring wheat chlorophyll content at different growth stages in irrigated and dry-land regions: Comparison of red-edge parameters for spring wheat chlorophyll content at different growth stages in irrigated and dry-land regions 水旱区春小麦不同生育期叶绿素含量红边参数比较:水旱区春小麦不同生育期叶绿素含量红边参数比较
Q3 Agricultural and Biological Sciences Pub Date : 2014-06-25 DOI: 10.3724/SP.J.1011.2014.30456
Yanhua Jin, Heigang Xiong, Fang Zhang, Lifeng Wang
{"title":"Comparison of red-edge parameters for spring wheat chlorophyll content at different growth stages in irrigated and dry-land regions: Comparison of red-edge parameters for spring wheat chlorophyll content at different growth stages in irrigated and dry-land regions","authors":"Yanhua Jin, Heigang Xiong, Fang Zhang, Lifeng Wang","doi":"10.3724/SP.J.1011.2014.30456","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30456","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69970403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of tannic acid on active aluminum forms distribution in tea garden soils with different pH: Effects of tannic acid on active aluminum forms distribution in tea garden soils with different pH 单宁酸对不同pH茶园土壤活性铝形态分布的影响单宁酸对不同pH茶园土壤活性铝形态分布的影响
Q3 Agricultural and Biological Sciences Pub Date : 2014-06-24 DOI: 10.3724/SP.J.1011.2014.30393
You-jian Su, Wan-you Liao, Ye-jun Wang, Yongli Zhang, Yi Luo, Shanguo Hu
{"title":"Effects of tannic acid on active aluminum forms distribution in tea garden soils with different pH: Effects of tannic acid on active aluminum forms distribution in tea garden soils with different pH","authors":"You-jian Su, Wan-you Liao, Ye-jun Wang, Yongli Zhang, Yi Luo, Shanguo Hu","doi":"10.3724/SP.J.1011.2014.30393","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30393","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69970682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Accumulation and distribution of nitrogen in triticale varieties with different nitrogen utilization efficiencies under different nitrogen application levels 不同施氮水平下不同氮素利用效率小黑麦品种氮素积累与分配
Q3 Agricultural and Biological Sciences Pub Date : 2014-01-01 DOI: 10.3724/sp.j.1011.2014.30779
Zhang Xizho
Nitrogen(N) is a critical factor influencing yield and quality of triticale. To analyze the effects of N accumulation and distribution on N use efficiency(NUE) at different growth stages(tillering, jointing and heading) of triticale, a pot experiment with three N fertilization rates [0(zero-N), 0.033 g(N)·kg-1(low-N) and 0.066 g(N)·kg-1(normal-N)] and three triticale varieties [two high NUE(‘Clxt82', ‘PI429186') and one low NUE(‘Clxt74')] was carried out. The distribution of N in plant organs, and contents of different N forms were analyzed at various growth stages. The results showed that high NUE triticale varieties were advantages in low N conditions. The differences in biomass between high and low NUE varieties gradually decreased with increasing N fertilization rates at heading stage. Above-ground biomass of ‘Clxt82' was respectively 1.55 times, 1.19 times and 1.06 times that of ‘Clxt74' under zero-N, low-N and normal-N treatments. Similarly, above-ground biomass of ‘PI429186' was respectively 1.79 times, 1.35 times and 1.30 times that of ‘Clxt74' under zero-N, low-N and normal-N treatments. N accumulation increased significantly with increasing N fertilization rates at different growth stages. Under low-N and normal-N treatments, N accumulation in both high NUE varieties was significantly higher than that in low NUE variety at tillering and jointing stages. However, no significant difference was noted between the varieties at heading stage. Allocation ratio of N in plant leaves and ears decreased with increasing N fertilization rates and the reverse was the case for plant stems. At tillering and jointing stages, N allocation ratios of stems of high NUE varieties were less than that of low NUE variety, and for leaves it was reverse. At heading stage, N allocation ratio of ears of high NUE varieties was higher than in low NUE varieties and the reverse was the case for leaves. Contents of different forms of N increased with increasing N fertilization rates at various growth stages. At jointing stage, assimilable N(AN) contents in ‘Clxt82' and ‘PI429186' leaves were respectively 1.31 times and 1.76 times that in ‘Clxt74' under zero-N treatment, and 1.12 times and 1.35 times under low-N treatment. Then structural N(SN) contents were respectively 86.12% and 64.01%, and 80.82% and 71.51% that of ‘Clxt74'. At heading stage, AN content in ‘Clxt82' and ‘PI429186' leaves were respectively 1.01 times and 1.11 times that of ‘Clxt74' under zero-N treatment, and 1.04 times and 1.13 times under low-N treatment. Also SN content were respectively 74.99% and 63.08%, and 75.78% and 62.84% that of ‘Clxt74'. However, functional N(FN) content was not significantly different for the varieties at various growth stages. High NUE varieties maintained N utilization and N cycle by reducing SN content and increasing AN content.
氮(N)是影响小黑麦产量和品质的关键因素。为分析氮素积累和分配对小黑麦不同生育期(分蘖期、拔节期和抽穗期)氮素利用效率的影响,采用3个氮肥施量[0(零氮)、0.033 g(N)·kg-1(低氮)和0.066 g(N)·kg-1(正常氮)]和3个小黑麦品种[2个氮肥利用率高的(Clxt82)、PI429186)和1个氮肥利用率低的(Clxt74)]进行盆栽试验。分析了不同生育期植物各器官氮的分布及不同形态氮的含量。结果表明,低氮条件下,高氮肥利用率的小黑麦品种具有优势。抽穗期高、低氮肥品种间生物量差异随施氮量的增加逐渐减小。在零氮、低氮和正常氮处理下,Clxt82的地上生物量分别是Clxt74的1.55倍、1.19倍和1.06倍。在零氮、低氮和正常氮处理下,‘PI429186’的地上生物量分别是‘Clxt74’的1.79倍、1.35倍和1.30倍。不同生育期氮素积累量随施氮量的增加而显著增加。在低氮和正常氮处理下,分蘖期和拔节期高氮肥品种的氮素积累量均显著高于低氮肥品种。抽穗期各品种间无显著差异。叶片和穗部氮素分配比例随施氮量的增加而降低,茎部氮素分配比例则相反。在分蘖期和拔节期,高氮素利用效率品种茎部氮分配比低于低氮素利用效率品种,叶片氮分配比相反。抽穗期,高氮素利用效率品种穗部氮分配比例高于低氮素利用效率品种,叶片氮分配比例相反。各生育期各形态氮含量随施氮量的增加而增加。拔节期,‘Clxt82’和‘PI429186’叶片的可同化氮含量分别是零氮处理下‘Clxt74’的1.31倍和1.76倍,低氮处理下的1.12倍和1.35倍。结构氮(SN)含量分别为Clxt74的86.12%和64.01%,80.82%和71.51%。抽穗期,‘Clxt82’和‘PI429186’叶片的AN含量分别是零氮处理的‘Clxt74’的1.01倍和1.11倍,低氮处理的1.04倍和1.13倍。SN含量分别为Clxt74的74.99%和63.08%,75.78%和62.84%。不同生育期品种间功能氮含量差异不显著。高氮肥品种通过降低氮素含量和增加硝态氮含量来维持氮素利用和氮素循环。
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引用次数: 0
Coupling state of agricultural eco-economic system under emission mitigation and sink enhancement of non-point source pollution——A case study of Zhong County in the Three Gorges Reservoir Region 非点源污染减排增汇下的农业生态经济系统耦合状态——以三峡库区钟县为例
Q3 Agricultural and Biological Sciences Pub Date : 2014-01-01 DOI: 10.3724/sp.j.1011.2014.30540
Xiao Xin-chen
The Three Gorges Reservoir Area is a key control region of eco-environmental construction in China. However, how to achieve agro-economic development and control agricultural non-point source pollution in the region have emerged as difficult issues in recent years. To verify the coupling process of agricultural eco-economic system under emission mitigation and sink enhancement, data from the Zhong County(a typical non-point source pollution control district in the Three Gorges Reservoir Area) was used to develop eco-agriculture and non-point source pollution control. Then an equation-driven model of the construction structure was studied in terms of the interrelationship and interaction paths of the various elements of agricultural resources, agricultural development and agricultrual eco-economic coupling system in the Three Gorges Reservoir Aarea of Zhong County under the backdrop of emission mitigation and sink enhancement of non-point source pollution policies and measures. The paper put forward 6 basic assumptions based on 4 latent variables(emission mitigation and sink enhancement of non-point source pollution policies and measures, agricultural resources, agricultural development and coupling degree of agricultural eco-economic system) and the corresponding observation variables. Based on these elements, the paper designed a coupling model of the agricultural eco-economic system. The empirical results revealed that the path coefficient of the interrelationship between agricultural non-point source pollution control measures and agricultural resources utilization was 0.79. This suggested that the government's emission mitigation and sink enhancement measures promoted rational utilization of agricultural resources in the region. The path coefficient of the interactive relationship between emission mitigation and sink enhancement measures of agricultrual non-point source pollution and agricultural development was 0.80. This also suggested that the measures and policies were strong incentive for agricultural development in the study area. The path coefficient of the relationship between agricultural development and resources utilization was 0.77, indicating that agro-economic development in the region was based on reasonable agricultural resources utilization. Emission mitigation and sink enhancement measures positively influenced the coupling process of agricultural eco-economic system. The path coefficient was 0.85, which suggested that the measures in the study area significantly improved the coupling process. The utilization of agricultural resources and development positively influenced the process of agricultural eco-economic system coupling. The respective path coefficients were 0.91 and 0.89, indicating that the coupling process of agro-industry and agro-resources system conformed to the nature of agricultural development. Considering the structural relationship between the latent variables, it was noted that under background of non-poi
三峡库区是中国生态环境建设的重点控制区。然而,如何实现该地区农业经济的发展和控制农业面源污染已成为近年来的难题。为验证排放减缓与碳汇增强下农业生态经济系统的耦合过程,以三峡库区典型非点源污染控制区钟县为研究对象,开展生态农业发展与非点源污染控制研究。在非点源污染减排增汇政策措施背景下,研究了三峡库区钟县农业资源、农业发展和农业生态经济耦合系统各要素的相互关系和相互作用路径,构建了建设结构方程驱动模型。本文基于4个潜在变量(非点源污染减排和增汇政策措施、农业资源、农业发展和农业生态经济系统耦合程度)以及相应的观测变量,提出了6个基本假设。在此基础上,设计了农业生态经济系统的耦合模型。实证结果表明,农业面源污染控制措施与农业资源利用的相互关系路径系数为0.79。这表明政府的减排和碳汇增加措施促进了该地区农业资源的合理利用。农业面源污染减排和汇增措施与农业发展交互关系的路径系数为0.80。这也说明这些措施和政策对研究区农业发展具有很强的激励作用。农业发展与资源利用关系的路径系数为0.77,表明该区农业经济发展是以农业资源合理利用为基础的。减排和碳汇增强措施对农业生态经济系统的耦合过程有正向影响。通径系数为0.85,表明研究区措施显著改善了耦合过程。农业资源利用与发展正向影响农业生态经济系统耦合过程。路径系数分别为0.91和0.89,说明农产农资系统的耦合过程符合农业发展的本质。考虑潜在变量之间的结构关系,指出在非点源污染减排和汇增措施背景下,农业资源和经济发展是系统耦合的关键要素。这些元素形成了一个理解系统耦合过程的有效视角。
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引用次数: 4
Estimation of water consumption as affected by measurement locations of soil water content in drip irrigated tomato in solar greenhouses 日光温室滴灌番茄土壤含水量测定位置对耗水量的影响
Q3 Agricultural and Biological Sciences Pub Date : 2014-01-01 DOI: 10.3724/sp.j.1011.2014.30508
Zhao Weixi
Placements of soil moisture sensor have been key considerations in obtaining representative soil water content in crop root zones for irrigation schedules. In this article, the distribution of soil water content in the wetted volume from a line source was studied in drip irrigated tomato in solar greenhouse condition. Through comparison of tomato water consumption determined from measured water content by moisture sensors at different locations, suitable placements of sensors were discussed. The results indicated that irrigation quota range of 14 25 mm increased soil water content in the 0 40 cm soil layer, and daily mean soil water content in wetted soil volume was 75% 100% field capacity throughout tomato growth season. Wetted soil volumes generated by adjacent emitters along the drip lines fully overlapped after several sequential irrigation events, forming lateral zones with approximately uniform distribution of water content around the drip lines. There was no significant difference between mean soil water content along the depth of 0 40 cm layer. The variation tendency of soil water content with time at different horizontal locations from drip lines was synchronous in character, without any obvious hysteresis quality. Assuming that the 0 40 cm layer was the root zone with 80% root concentrated, an irrigation quota range of 14 25 mm caused deep percolation from the bottom of the root zone with a certain spatial variability. Seasonal deep percolation accounted for 13% of irrigation amount during tomato growth season. The differences in tomato water consumption at different locations from drip lines were within 10%, except for the seedling and blossom fruiting stages. The experimental results suggested that high frequency drip irrigation sustained suitable soil water condition in the root zone. One profile of soil water content measured in the proximity of drip lines was adequate for the proper estimation of water consumption of drip irrigated tomato in solar greenhouse conditions.
土壤水分传感器的放置是获得作物根区代表性土壤含水量的关键考虑因素。本文研究了日光温室条件下滴灌番茄线源湿润体积土壤含水量的分布规律。通过对不同位置水分传感器测得的番茄耗水量进行比较,探讨了传感器的适宜放置位置。结果表明:14 ~ 25 mm灌水定额范围可提高0 ~ 40 cm土层土壤含水量,整个番茄生长期湿润土壤体积日平均含水量为75% ~ 100%大田容量;在连续几次灌溉后,沿滴灌管道相邻的发射器产生的湿土体积完全重叠,在滴灌管道周围形成了含水量分布近似均匀的横向区域。在0 ~ 40 cm土层,土壤平均含水量差异不显著。不同水平位置土壤含水量随时间的变化趋势具有同步性,不存在明显的滞后性。假设0 ~ 40 cm层为根区,根系集中80%,14 ~ 25 mm的灌溉定额范围内,从根区底部深层渗透,具有一定的空间变异性。季节性深渗占番茄生长期灌水量的13%。除苗期和开花结实期外,不同地点番茄耗水量差异在10%以内。试验结果表明,高频滴灌维持了根区适宜的土壤水分条件。在滴灌管道附近测量的土壤含水量剖面足以正确估计日光温室条件下滴灌番茄的耗水量。
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引用次数: 2
期刊
Chinese Journal of Eco-agriculture
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