全文获取类型
收费全文 | 98篇 |
免费 | 8篇 |
国内免费 | 1篇 |
专业分类
林业 | 5篇 |
农学 | 8篇 |
基础科学 | 5篇 |
28篇 | |
综合类 | 6篇 |
农作物 | 8篇 |
水产渔业 | 6篇 |
畜牧兽医 | 25篇 |
园艺 | 4篇 |
植物保护 | 12篇 |
出版年
2024年 | 1篇 |
2023年 | 1篇 |
2022年 | 1篇 |
2021年 | 2篇 |
2020年 | 1篇 |
2018年 | 8篇 |
2017年 | 4篇 |
2016年 | 8篇 |
2015年 | 5篇 |
2014年 | 5篇 |
2013年 | 8篇 |
2012年 | 11篇 |
2011年 | 6篇 |
2010年 | 4篇 |
2009年 | 5篇 |
2008年 | 6篇 |
2007年 | 6篇 |
2006年 | 5篇 |
2005年 | 3篇 |
2004年 | 2篇 |
2003年 | 1篇 |
2002年 | 1篇 |
2001年 | 1篇 |
2000年 | 2篇 |
1999年 | 2篇 |
1998年 | 2篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1987年 | 1篇 |
1983年 | 1篇 |
排序方式: 共有107条查询结果,搜索用时 15 毫秒
101.
Daniel L. Evans Victoria Janes-Bassett Pasquale Borrelli Claire Chenu Carla S. S. Ferreira Robert I. Griffiths Zahra Kalantari Saskia Keesstra Rattan Lal Panos Panagos David A. Robinson Samaneh Seifollahi-Aghmiuni Pete Smith Tammo S. Steenhuis Amy Thomas Saskia M. Visser 《European Journal of Soil Science》2022,73(1):e13145
102.
Summary Hemp cultivation is not new to the southern regions, but cultivated area is decreasing. Recently, there has been a rediscovery of this crop, as a result of requests from the producers of natural fibres.The paper synthesizes the studies recently set up in southern Italy, with the goal of evaluating the adaptation and the yield of recent genotypes and of new agronomic techniques. The study demonstrates that, with the exception of the monoicious cultivars, the new genotypes of hemp are adapted to the environmental conditions of the Mediterranean Europe, reaching productive standards not lower than those obtained in other environments.The use of irrigation is indispensable for overcoming the prolonged water deficit which hemp is subject to during its cultivation cycle. A good irrigation practice consists in the partial satisfaction of the water requirements. The experimental evidence indicates that the best productive results are obtained with the reintegration of 66% of the water lost through evapotranspiration.A further saving in water is obtained with the anticipation of the sowing period, with, however, a loss in productive potential.Hemp can be considered, in all respects, a species to reintroduce in the current cultivation systems of southern Europe. It will be possible to increase its potential provided that breeding supplied new varieties, more tolerant to low temperatures (in order to anticipate the sowing time), and able to obtain economically profitable yields with the use of limited irrigation. 相似文献
103.
104.
105.
Hypolipidemic effects of Citrus bergamia Risso et Poiteau juice in rats fed a hypercholesterolemic diet 总被引:1,自引:0,他引:1
Miceli N Mondello MR Monforte MT Sdrafkakis V Dugo P Crupi ML Taviano MF De Pasquale R Trovato A 《Journal of agricultural and food chemistry》2007,55(26):10671-10677
Citrus bergamia Risso et Poiteau fruits have been traditionally utilized, in Calabria (Italy), as a popular remedy for their hypolipidemic properties. C. bergamia juice total phenol content (2474.35+/-38 microg/mL) was evaluated by the Folin-Ciocalteu method; moreover, HPLC analysis led to the identification of naringin (520 ppm), neoeriocitrin (370 ppm), and neohesperidin (310 ppm). The present study was designed to investigate the hypolipidemic effects of C. bergamia juice and its protective effect on liver of hyperlipidemic rats. Chronic administration of C. bergamia (1 mL/rat/day) provoked a significant reduction in serum cholesterol, triglycerides, and low-density lipoprotein (LDL) levels and an increase in high-density lipoprotein (HDL) levels; moreover, histopathological observations showed, in rats submitted to C. bergamia treatment, a protection of hepatic parenchyma. In addition, fecal neutral sterols and fecal bile acid excretion was found to be increased after C. bergamia treatment. These results suggest that the hypocholesterolemic effect of C. bergamia may be mediated by the increase in fecal neutral sterols and total bile acids excretion. In addition to the hypolipidemic effect, the juice shows radical scavenging activity in the diphenylpicrylhydrazyl (DPPH) test; probably the two effects are related. These observations suggest that the positive intake of C. bergamia may reduce the risk of some cardiovascular diseases through its radical scavenging function and hypocholesterolemic action. 相似文献
106.
107.
Pasquale Trematerra 《Journal of pest science》2012,85(3):285-299
Considerable progress has been made in the monitoring and control of stored-product pests, mainly Lepidoptera and Coleoptera, by pheromones, which are used in mass trapping, attracticide and mating disruption methods. In integrated pest management programmes of stored-product protection, the use of pheromones can lead to a reduction in chemical treatments, with economic advantages and the improvement of food-product quality. In this article, I report some promising results offering efficient detection and control of stored-product pests based on pheromones and line up a number of remaining questions to be answered to improve the reliability and competitiveness of the methods used. 相似文献