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71.
José Roberto Pereira de Sousa Fernando da Silva Carvalho-Filho Maria Cristina Esposito 《Journal of insect science (Online)》2015,15(1)
This study aimed at surveying the local calliphorid and sarcophagid species in
Maranhão State (Brazil) to determine their distribution and abundance, as well
as the distribution of exotic Chrysomya species. In total, 18,128
calliphorid specimens were collected, distributed in 7 genera and 14 species. The
species Hemilucilia semidiaphana (Rondani, 1850) and
Paralucilia paraensis (Mello, 1969) were new state records.
Chrysomya albiceps (Wiedemann, 1819) and Cochliomyia
macellaria (F., 1775) were the most abundant species, and the exotic
species of Chrysomya together contributed more than 50% of
total blow fly abundance. The abundance distribution of the calliphorid community
conformed to a log series model, characterized by a steep curve that reflects an
assemblage with a high degree of dominance. For the Sarcophagidae, a total of 14,810
specimens were collected and distributed in 15 genera, 11 subgenera, and 52 species.
Tricharaea (Sarcophagula)
occidua (F., 1794) and Peckia
(Sarcodexia) lambens (Wiedemann, 1830) were the
most abundant species. The abundance distribution of the species followed a log
normal model, with a gentler slope, consistent with a more uniform community. The
cumulative species curve for the sarcophagids did not reach the asymptote.
Forty-three sarcophagid species were new state records and 22 were new records for
the Brazilian northeast, which emphasizes the need for a continued survey in this
region. 相似文献
72.
The recycling of brewer's processing by-product into ready-to-eat snacks using extrusion technology 总被引:1,自引:0,他引:1
Valentina Stojceska Paul Ainsworth Andrew Plunkett Senol banoglu 《Journal of Cereal Science》2008,47(3):469-479
Brewer's spent grain (BSG) is the main by-product of the brewing industry. The incorporation of BSG into ready-to-eat expanded products and its effects on the textural and functional properties of extrudates have been studied. Dried and milled BSG at levels of 10–30% was added to the formulation mix made of wheat flour, corn starch and other ingredients. The results obtained from the analysis of the extrudates are discussed in terms of the interaction between the ingredients and effects of processing conditions. The samples were processed in a twin-screw extruder with a combination of parameters including constant feeding rate of 25 kg/h, process temperatures 80–120 °C and screw speeds of 150–350 rpm. Pressure, torque and material temperature during extrusion were recorded. The extrudate properties of nutritional and textural characteristics were measured. Image technique investigations provided useful information on internal structure of the extruded products, total cell area, and their contribution to the appearance and texture. It was found that addition of BSG significantly increased protein content, phytic acid and bulk density, decreased sectional expansion index, individual area and total area of the cells. The higher level of BSG resulted in cells with thicker walls with a rougher surface. 相似文献
73.
74.
Hord CW Barth CA Esposito LW McClintock WE Pryor WR Simmons KE Stewart AI Thomas GE Ajello JM Lane AL West RW Sandel BR Broadfoot AL Hunten DM Shemansky DE 《Science (New York, N.Y.)》1991,253(5027):1548-1550
The Galileo Extreme Ultraviolet Spectrometer obtained a spectrum of Venus atmospheric emissions in the 55.0- to 125.0-nanometer (nm) wavelength region. Emissions of helium (58.4 nm), ionized atomic oxygen (83.4 nm), and atomic hydrogen (121.6 nm), as well as a blended spectral feature of atomic hydrogen (Lyman-beta) and atomic oxygen (102.5 nm), were observed at 3.5-nm resolution. During the Galileo spacecraft cruise from Venus to Earth, Lyman-alpha emission from solar system atomic hydrogen (121.6 nm) was measured. The dominant source of the Lyman-alpha emission is atomic hydrogen from the interstellar medium. A model of Galileo observations at solar maximum indicates a decrease in the solar Lyman-alpha flux near the solar poles. A strong day-to-day variation also occurs with the 27-day periodicity of the rotation of the sun. 相似文献
75.
Improved physical control of glyphosate‐resistant Italian ryegrass (Lolium multiflorum) on rice paddy levees in Japan 下载免费PDF全文
Valentina Dwi Suci Handayani Yuki Tanno Masayuki Yamashita Hiroyuki Tobina Minoru Ichihara Yoshiki Ishida Hitoshi Sawada 《Weed Biology and Management》2017,17(2):77-83
Italian ryegrass ( Lolium multiflorum Lam.) is a non‐native annual winter grass that has seriously infested rice paddy levees and wheat fields in Japan. Recently, glyphosate‐resistant Italian ryegrass was found on paddy levees in central Japan, thereby making control of the grass by using glyphosate less effective. In this study, physical control methods were tested that combined the timing and frequency of mowing in order to more effectively control glyphosate‐resistant Italian ryegrass on rice paddy levees. A 3 year field experiment was conducted from 2012 to 2014 in a western region of Shizuoka Prefecture, where glyphosate‐resistant Italian ryegrass has become dominant. Five treatments were tested: (i) mowing once before the flowering of the grass (i.e. conventional mowing measure); (ii) mowing once during flowering; (iii) mowing twice during flowering; (iv) glyphosate application before flowering (i.e. one of the conventional mowing measures); and (v) no treatment. The above‐ground biomass, seed production, soil seed bank and seedling occurrence of Italian ryegrass were measured to determine the effectiveness of these treatments. Mowing during the flowering period resulted in reduced above‐ground biomass, seed production and soil seed bank when compared with the other treatments. Additionally, mowing twice during the flowering period resulted in a lower seedling density than mowing once. The results suggest that, in this region, physical control by mowing during the flowering period would be more effective than conventional measures for controlling glyphosate‐resistant Italian ryegrass. 相似文献
76.
Workshop Summary and Synthesis
Towards a comprehensive education and training program in agroforestry 相似文献77.
Luca Pipino Marie-Christine Van Labeke Andrea Mansuino Valentina Scariot Annalisa Giovannini Leen Leus 《Euphytica》2011,178(2):203-214
Fertility of hybrid tea roses is often reduced due to their interspecific origin but also to intensive inbreeding. New genotypes
used as pollen donors represent an economic risk for a breeding programme, as their influence on seed production is unknown.
In this study 11 cut rose genotypes were selected from a company database as high fertile or low fertile male parents, according
to the number of seeds per hybridisation. Pollen morphology and in vitro germination of the selected genotypes were characterised.
Pollen was either small (mean diameter <30 μm), shrunken, and irregular (abnormal), or large (mean diameter >30 μm), elliptical
and crossed by furrows (normal). High correlations were found between the number of seeds produced per hybridisation and the
pollen diameter (r = 0.94) or the percentage of normal pollen (r = 0.96). In order to evaluate the predictive power of the models, we conducted regression analyses and performed a validation
experiment on genotypes not present in the database and without background information on fertility. Pollen diameter and percentage
of normal pollen were characterised and fitted in the regression models for seed set predictions. Validation with an independent
dataset gave a good prediction for 83.3% of the data. This indicates that using either the mean pollen diameter or the percentage
of normal pollen resulted in effective fertility prediction. This tool could enhance the genetic variability in crossings
between hybrid tea roses, thus creating possibilities for less economically risky exploitation of new tetraploid genotypes
as male parents. 相似文献
78.
Marta Amat Xavier Manteca Valentina M. Mariotti José Luís Ruiz de la Torre Jaume Fatjó 《Journal of Veterinary Behavior: Clinical Applications and Research》2009,4(3):111-117
A high percentage of aggression problems and a tendency to display noninhibited aggression in the English cocker spaniel (ECS) have been suggested by many authors. The authors of this paper designed a retrospective study to analyze the aggressive behavior of 145 ECSs presented for aggression problems to the Animal Behavior Service at the Barcelona School of Veterinary Medicine's veterinary teaching hospital. Aggressive ECSs were compared with a population of dogs of the same breed presented for a behavior problem other than aggression and with a population of aggressive dogs of other breeds. The most common forms of aggression in the ECS were owner-directed aggression (67.6%), aggression toward unfamiliar people (18.4%), aggression toward unfamiliar dogs (10.1%), and aggression toward family dogs (3.3%).Owner-directed aggression was more common in the ECS than in other breeds, although in similar contexts. In the ECS, the golden coat color was more common in the aggressive dogs than in nonaggressive dogs. ECSs showed impulsive aggression more frequently than aggressive dogs of other breeds. The aim of the study was to analyze cases of aggressive ECSs seen in a referral practice. 相似文献
79.
Valentina Zappulli Sandro Mazzariol Laura Cavicchioli Claudio Petterino Luca Bargelloni Massimo Castagnaro 《Journal of veterinary diagnostic investigation》2005,17(6):617-622
A common bottlenose dolphin (Tursiops truncatus) was presented for necropsy after acute onset of gastrointestinal signs and cutaneous lesions that rapidly progressed to death. Gross and microscopic findings were characterized by locally extensive severe necrohemorrhagic fasciitis and cellulitis, and severe necrotizing myositis in the head and dorsocranial thorax, with numerous disseminated gram-positive cocci. Streptococcus agalactiae was isolated from the lesions and from visceral organs (liver and lung), and it was identified by standard microbiology techniques. This communication is the first report of necrotizing fasciitis in a marine mammal associated with S. agalactiae. 相似文献
80.
N. Mirabella V. Esposito M. Corona G. V. Pelagalli 《Anatomia, histologia, embryologia》1998,27(4):237-243
The morphology of the ureter of the duck was investigated, using histological, SEM and TEM techniques. The inner perimeter, the total thickness of the ureteral wall and the thickness of each uretral layer were measured. The epithelium was tall columnar and pseudostratified along all the tracts of the ureter and showed a high muco-secretive activity. The lamina propria contained numerous capillaries and aggregates of leucocytes and macrophages. Throughout the lamina propria there was a dense plexus of nerves. Some denuded single nerve fibres were observed between the epithelial basal cells. A plexus of nerves was also observed in the tunica muscularis. The ostium cloacale ureteris opened on a well-developed papilla in the dorsal region of the urodeum. The total thickness of the ureteral wall, the thickness of the lamina propria and the tunica muscularis, and the inner perimeter progressively increased towards the ostium. The above observations suggest that the avian ureter plays an important role in the modification of the urine coming from medullary cones, and in emission of the urine into the cloaca. 相似文献