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通过田间试验,研究了生态肥与有机肥混合、矿粉与有机肥混合以及单施有机肥对番茄生长及土壤养分、微生物量和酶的影响.结果表明,生态肥与有机肥混合处理可明显促进番茄根系生长发育和提高叶绿素含量,其产量显著高于单施有机肥及矿粉与有机肥混合施用处理,分别增产14.9%和15.8%.同时,生态肥与有机肥混合处理可明显改善土壤速效养分的供给水平,其NH4+-N和NO3--N都显著高于其他处理.番茄生长中期和后期不同施肥处理的脲酶、酸性磷酸酶和过氧化氢酶的活性均以生态肥与有机肥混合处理最高.在番茄生长期,生态肥与有机肥混合处理的土壤微生物生物量碳显著高于另外2个处理,表明施用生态肥有利于增加土壤肥力和促进番茄生长. 相似文献
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WEI Shuhua LIANG Jun YE Jianren ZHANG Xingyao** . School of Resources Environment of Nanjing Forestry University Nanjing P.R. China . Institute of Forest Ecology Environmental Protection Chinese Academy of Forestry Beijing P.R. China 《中国林业科技(英文版)》2007,6(1):62-68
Toxin, one of the most important factors of plant fungal disease, has attracted much attention of many academicians who have been studying pathogen mycotoxin in deep research. The paper summarized chemical structures of some host-selective plant pathogen mycotoxins discovered in recent years and the correlation between biological activity and chemical structure of toxin. 相似文献
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FEI Benhua ZHAO Yong** REN Haiqing CHEN Enling Research Institute of Wood Industry Chinese Academy of Forestry Beijing P.R.China 《中国林业科技(英文版)》2006,5(3):1-5
INTRODUCTION China has a long history of wood framed construction. But, due to the increasing of population and lack of timber, wood framed construction is limited in the market, its research and development is relatively scarce. The modern wood framed construction has been developed and widely applied in the North American area and other countries for several decades. Recently, with the rapid development of economy and the requirement of society, especially energy saving, the wood frame… 相似文献
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【目的】开发抗稻瘟病基因Pi9的荧光分子标记,为抗稻瘟病水稻品种分子育种提供简便、可靠的基因分型检测方法。【方法】利用PCR克隆测序,并比对供体亲本与受体亲本之间抗稻瘟病基因Pi9序列的差异,开发1个基于SNP位点的高通量KASP分子标记。【结果】利用该标记对水稻杂交群体278个单株进行基因分型检测,结果发现141个单株的基因型为T/T,137个单株的基因型为C/C,分型结果与SSR分子标记检测结果一致;通过在岑溪稻瘟病高发区进行稻瘟病鉴定,验证了Pi9-KASP分子标记有较强可靠性。【结论】基于SNP位点开发的Pi9-KASP分子标记可以高效应用于水稻抗稻瘟病品系的种质资源鉴定及分子标记辅助选择育种中。 相似文献
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简介了有机农业的起源、内涵和国外有机食品的发展概况以及我国有机农业发展现状与前景,阐述了我国发展有机农业、开发有机食品的战略意义,并提出发展有机农业的对策。 相似文献
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ZHOUGuanwu DUANXinfang** CAOYongjian CHENYongsheng CAO Yuanlin** .Division of Wood Protection Research Institute of Wood Industry Chinese Academy ofForestry Beijing P.R.China .Centerfor Brain CognitiveSciences Institute of Biophysics Chinese AcademyofSciences Beijing P.R. China 《中国林业科技(英文版)》2006,5(2):28-32
INTRODUCTIONLaccase (EC 1.10.3.2) is multicopper oxidase catalyzing oxidation of various phenolic compounds, aromatic amines, and even certain inorganic compounds by a one-electron transfer mechanism. The electron withdrawn from the substrates is transferred via four copper atoms to molecular oxygen (Messerschmidt 1997). Laccase is very common in nature, especially in plants and fungi (Gianfreda et al. 1999). Fungal laccases participate in plant pathogenesis, pigment production and ligni… 相似文献
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2008年12月，农业部出台了《关于进一步加强农业机械化质量工作的意见》（下文简称《意见》）。据悉，这是农业部出台的首个关于农业机械化质量工作的文件。《意见》深入阐述了提高农机化质量的重要意义，明确了当前和今后一个时期农业机械化质量工作的基本思路、目标任务和总体要求，并且提出了加强农业机械化质量工作的保障措施，为今后的工作指明了方向。 相似文献
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ZHOU Yongdong** JIANG Xiaomei PIAO Chenghan Research Institute of Wood Industry Chinese Academy of Forestry Beijing P.R.China 《中国林业科技(英文版)》2006,5(3):17-21
INTRODUCTION Eucalyptus plantations have been important plantations in South China for its fast-growth rate. And the overall planted area is beyond 1.6 million ha, mainly distributed in the provinces of Guangdong, Guangxi, Yunnan, Fujian, etc. But, the main utilization is limited to wood chips currently. Along with the natural forest protection policy implementation, the wood resource has transferred from the natural forest to plantation forests, and the value-added application of plant… 相似文献