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81.
In recent years there has been a notable worldwide increase in the amount of land devoted to olive orchards. Most of these new orchards are irrigated and represent large financial investments. The irrigation of young olive trees should reduce the period during which their production is small or non-existent. Although the water requirements of young olive orchards are thought to be low, little is in fact known in this regard. In the present work, three irrigation treatments (100, 75 and 50% coverage of water needs) were designed using the Orgaz method, and their effects on young olive trees tested in different plots over a period of 3 years. The 50% deficit treatment was designed to provide the trees with an amount of water in the region of that stipulated by the FAO method, the most commonly used irrigation scheduling system for olive orchards. No significant differences in shoot water potential nor abaxial leaf conductance were seen between the trees receiving the different treatments. However, canopy volume and shoot growth were affected. These results indicate that the traditional FAO model, which would have supplied about 35% of the water supplied by the Control treatment, may well reduce the economic benefits to be derived from young olive orchards. 相似文献
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Van Nguyen T. B. Cuong Nguyen V. Yen Nguyen T.P. Nhi Nguyen T. H. Kiet Bach Tuan Hoang Nguyen V. Hien Vo B. Thwaites Guy Carrique-Mas Juan J. Ribas Alexis 《Tropical animal health and production》2020,52(1):53-62
Tropical Animal Health and Production - Commercial small-scale chicken farms managed as all-in-all-out but operating with low standards of hygiene/biosecurity are increasingly common in Vietnam.... 相似文献
86.
为建立大红甜橙的再生及遗传转化体系,提高转化芽的成株率,以30d龄的大红甜橙(CitrussinensisOsbeck)实生苗上胚轴为材料,导入rolB基因,进行遗传转化研究.结果表明:MS+3.0mg/L6-BA培养基诱导不定芽的效果最好,达95%以上.遗传转化时,采用培养基Ⅱ(MS+3mg/L6-BA+200μmol/LAs)+培养基Ⅳ(MT+3mg/L6-BA+50mg/LKan+500mg/LCef)组合的抗性芽诱导最快,诱导率为51%.用微芽嫁接的方法,将抗性芽嫁接到卡里佐枳橙上,成苗良好,已获得19株转rolB基因植株,盆栽在温室中生长良好. 相似文献
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Laia Reverté Lucía Soli?o Olga Carnicer Jorge Diogène Mònica Campàs 《Marine drugs》2014,12(12):5719-5763
The emergence of marine toxins in water and seafood may have a considerable impact on public health. Although the tendency in Europe is to consolidate, when possible, official reference methods based on instrumental analysis, the development of alternative or complementary methods providing functional or toxicological information may provide advantages in terms of risk identification, but also low cost, simplicity, ease of use and high-throughput analysis. This article gives an overview of the immunoassays, cell-based assays, receptor-binding assays and biosensors that have been developed for the screening and quantification of emerging marine toxins: palytoxins, ciguatoxins, cyclic imines and tetrodotoxins. Their advantages and limitations are discussed, as well as their possible integration in research and monitoring programs. 相似文献