Results 21 to 30 of about 408 (120)
肥料减施条件下水稻土壤有机碳组分对紫云英—稻草协同利用的响应
Shuitu Baochi Xuebao, 2017 研究紫云英与稻草不同利用模式在化肥减量条件下稻田表层土壤有机碳及其活性组分的差异，为合理利用有机物料调控土壤肥力提供参考。采用湖南省南县连续5 a（2011—2015年）大田定位试验，研究了减量施肥下洞庭湖地区紫潮泥双季稻田0-20 cm表层土壤总有机碳（TOC）、微生物量碳（MBC）、可溶性有机碳（DOC）、易氧化有机碳（EOC）和轻组有机碳（LFOC）对紫云英与稻草不同利用模式的响应。结果表明：与不施肥（CK）相比，单施化肥（F100）TOC、MBC、DOC、EOC和LFOC的含量均有显著上升 ...
周 +6 more
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Non-targeted Metabolomics Analysis of Key Characteristic Components in Liudong Tea [PDF]
This study employed non-targeted metabolomics combined with chemometrics to investigate the effects of different manufacturing processes, harvest times and cultivation methods on the key characteristic components of Liudong tea, a specialty tea cultivar ...
ZHAO Jie, LI Furong, LIU Wenwen, MA Jiangming, QIN Jiashuang, CHEN Yan, WANG Xu
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Differential Analysis of Five Chinese Fresh Peach Metabolites Based on Non-target Metabolomics [PDF]
Objective: To investigate the differences in metabolites of Chinese nectarine, peento, yellow peach, Yangshan honey peach and Xinyi honey peach by using non-target metabolomics.
Chao TANG +4 more
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Shuitu Baochi Xuebao, 2017 通过连续5年定位试验，以紫云英、秸秆和商品有机肥等有机物料还田的稻田土壤为研究对象，研究有机物料还田后不同物理分组下土壤组成特点和有机碳变化特征。结果表明，稻田土壤团聚体主要分布在2～0.25 mm与0.25～0.053 mm粒级，团聚体颗粒有机碳含量随着粒径的减小而减少。有机物料还田可提高0.25～0.053 mm和＜0.053 mm粒级团聚体有机碳的含量，紫云英、秸秆、商品有机肥等有机物料可通过提高土壤微团聚体有机碳含量而增加土壤碳库。有机物料施用增加土壤轻组组分颗粒含量，减少重组组分颗粒含量 ...
俞巧钢, 邹, 顾国平
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添加莠去津的土壤中微生物生物量碳、氮、磷对外源有机无机物质的动态响应
Shuitu Baochi Xuebao, 2004 研究了添加有机、无机营养物质对外加除草剂莠去津土壤(每1g土中含莠去津10mg/)中微生物生物量碳、氮和磷的动态变化过程。研究结果表明,在整个培养过程中,仅加莠去津的土壤中微生物生物量碳、氮、磷的含量均显著降低,与对照相比,分别平均降低了13.5%,10.1%,20.0%。但是,施用有机、无机营养物质的处理,土壤微生物生物量碳、氮、磷的含量均显著增加。不同处理对微生物生物量碳、氮的含量影响程度依次为:腐熟猪粪>紫云英>水稻秸秆腐熟猪粪>N、P肥配施>单施N肥>单施P肥。而对微生物生物量磷含量的影响则为 ...
张超兰 徐建民
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Chemical composition analysis of walnut leaves and their ethanol extracts [PDF]
[Objective] This study aimed to investigate the chemical constituents of walnut leaves. [Methods] The volatile components of walnut leaves were analyzed by head-space solid micro-extraction and coupled with GC-MS.
HE Jiali +4 more
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浙江大学学报. 农业与生命科学版This study investigated the impact mechanism of rotational grazing on vegetation communities and soil arbuscular mycorrhizal (AM) fungal communities in mixed-sown artificial grassland ecosystems.
WANG Yuan(王媛) +9 more
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Differential Analysis of Metabolites in Different Parts of Rubus chingii Hu Based on Widely Targeted Metabolomics [PDF]
The differences in metabolite composition among different parts (roots, fruits, leaves and stems) of Rubus chingii Hu (R. chingii) were analyzed using widely targeted metabolomics based on ultra-high performance liquid chromatography-mass spectrometry ...
YU Qiang, YANG Min, PAN Ping, CHEN Fei, WANG Xianyong, DENG Shanggui, CHEN Hongjiang, LUO Yiyuan
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Shuitu Baochi Xuebao, 2019 为有效提高植物提取污染土壤重金属的效率，以绿色安全的有机物料为活化剂代替存在安全隐患、不可降解的螯合剂及表面活性剂，探究不同活化剂对土壤重金属镉的活化效果及对植物镉积累的影响。通过室内培养试验与盆栽试验的方法，研究了紫云英、黄腐酸钾和柠檬酸3种活化剂在0.3%施用量下对污染土壤中镉的生物有效性、赋存形态的影响及活化剂强化柳树对镉的积累。结果表明：（1）添加活化剂会改变土壤的pH。培养结束时，黄腐酸钾处理对土壤pH的降低效果优于紫云英处理，显著低于对照0.50个单位 ...
倪幸, 李雅倩, 白珊, 叶正钱
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Optimisation of the Extraction Process and Compositional Analysis of Lipase-inhibiting Components from Morus alba L. Leaves [PDF]
In this study, on the basis of single factor experiments, the effects of raw material mass concentration, ethanol volume fraction, ultrasonic power, extraction temperature, and extraction time on the lipase inhibition activity of mulberry leaves extract ...
Daorui PANG +6 more
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