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61.
Deribe Kaske Zebedayo Samwel Kayanda Mvena Alfred Said Sife 《Journal Of Agricultural & Food Information》2013,14(3):284-298
This study was conducted in Ethiopia to determine the use of mobile phones in agriculture. The study included 320 household heads who owned mobile phones. Data were collected using an interview schedule. The results revealed that the majority (90.6%) of household heads made phone calls for agricultural purposes. Over three quarters (85.9%) of the household heads received phone calls related to agriculture. Short message service (SMS) was poorly used. It is concluded that mobile phones are playing an important role as an informational medium. Therefore, the Ministry of Agriculture in Ethiopia needs to develop a mobile-based agricultural information dissemination system to enhance information delivery to rural farming households. 相似文献
62.
Said?El?MadidiEmail author Zineb?Diani Fouzia?Bani?Aameur 《Genetic Resources and Crop Evolution》2005,52(7):831-838
In many areas of North Africa, barley is often the only possible rainfed crop. In these regions water deficit is the primary
constraint affecting crop production. Twenty barley landraces collected from different localities in south Morocco and four
modern varieties were characterized in two field experiments, one under well-irrigated and one under limited-irrigated conditions.
Nine agro-morphological characters were evaluated: Plant height, tiller number per plant, number of grains per spike, number
of spikes per plant, spike weight, spike length, plant weight (PW), number of internodes of rachis (NIR), and length of the
last internode of rachis. The correlation coefficients among characters were nearly the same in the well- and limited-irrigated
experiment. Under limited-irrigated conditions, plant growth was significantly decreased as measured by all characters except
NIR, which was unaffected. The percentage of reduction, ranging from 80.08% to 5.82%, was recorded on PW and NIR, respectively.
The injury index ranging from 4.02 to 0.06 was recorded on PW and NIR, respectively. Using discriminant analysis the genotypes
were arranged in three, clearly separated groups that varied in their tolerance to drought stress. 相似文献
63.
Khalid Usman Samee Ud Din Inam ullah Said Ghulam Muhammad Waqas Imam Malik Muhammad Saad 《Communications in Soil Science and Plant Analysis》2020,51(11):1423-1433
ABSTRACT Sulfur (S) availability is a characteristic of conservation tillage. We studied the effects of S on sunflower yield and fatty acid profile under conventional and conservation tillage in silty clay soil of D.I. Khan, Pakistan. Conventional tillage consisted of disk plowing followed by tiller and rotavator, while conservation tillage comprises tiller and disc harrowing. Treatments comprise six sulfur levels (S1 = 0, S2 = 20 kg S ha?1 at sowing, S3 = 10 kg S ha?1 at sowing +10 kg S ha?1 25 days after sowing (DAS), S4 = 40 kg S ha?1 at sowing, S5 = 20 kg S ha?1 at sowing + 20 kg S ha?1 25 DAS, and S6 = 20 kg S ha?1 at sowing + 10 kg S ha?1 25 DAS + 10 kg S ha?1 50 DAS) replicated thrice. After 2 years of experimentation, soil samples were collected (from 0 to 0.30 m depth) for organic matter (OM), total soil N (TSN), and available sulfur analysis. Conservation tillage significantly increased OM, TSN, and S contents in 0–0.30 m soil compared to conventional tillage. Likewise, sunflower plants showed higher achene yield, better fatty acid profile, and net economic returns in conservation tillage than in conventional tillage. Application of 20 kg S ha?1 at sowing and 10 kg S ha?1 at each 25 and 50 DAS recorded significantly higher achene yield, higher oil, and linoleic acid contents; however, oleic and oleic/linoleic ratio did not increase with higher S rates. Conservation tillage was effective in increasing OM, TSN, and available S besides increasing yield and economics in silty clay soil. 相似文献
64.
Shimaa R. Masoud Afaf A. Kishta Omaima M. Kandil Said I. Fathalla Sherif M. Shawky Ahmed Sabry S. Abdoon 《Reproduction in domestic animals》2021,56(12):1506-1510
This study was undertaken to evaluate the effect of body condition score (BCS) on testicle and epididymis biometrics, semen characteristics and testosterone level in Egyptian Jack. This study was conducted on 50 mature Jacks divided according to their body condition score into four groups: Poor (G1), moderate (G2), good (G3) and fat (G4). The complete testis was collected immediately after execution in the Giza Zoo abattoir; then, the epididymis was carefully dissected at the testicular junction. Biometrical measures including length, weight and volume were determined for the right and left testis and epididymis. Also, epididymal sperm was collected from all examined animas and evaluated for sperm concentration, progressive motility, viability and sperm abnormalities. Serum samples were collected for determination of total testosterone level. Results showed that the body condition score of the examined animal affects their biometrical measure of testicles and epididymis. There is a significant decrease (p < .05) in biometrical measures for the testicles and epididymis, sperm concentration, motility, viability and testosterone level in poor BCS animals (G1). The highest values were recorded in Good BCS (G3) Jacks. Conclusion: Jacks with good BCS (G3) should be selected for breeding activity in donkey. 相似文献
65.
Ahmed Sabry S. Abdoon Hassan A. Abdel-Rahman Sherif M. Shawki Omaima M. Kandil Said I. Fathalla 《Veterinary research communications》2014,38(4):287-295
This work was designed to evaluate the ovarian follicular development, oocytes morphology, methods of oocytes reterival, and the effect of different in vitro maturation (IVM) media on cumulus cell expansion and nuclear maturation of Jennies oocytes. Experiment 1, the number of small (<6 mm), medium (6 to 9 mm) and large size (>10 mm) ovarian follicles was recorded. Cumulus-oocyte-complexes (COCs) were reterived and classified into 4 Grades based on their cumulus-cells investment and the homogenous of the ooplasm. In Experiment 2, COCs were recovered by using 18-G, 20-G needle or slicing and scraping of ovarian follicles to determine the number and morphology of the recovered COCs. In Experiment 3, Grade A and B COCs were IVM in DMEM-HG, DMEM-LG, DMEM-F12, TCM199, TCM199-F12 or CR1aa media supplemented with 10 % FCS?+?10 μg FSH/mL?+?10 IU hCG/mL?+?50 μg/mL gentamicin. Maturation was performed for 36 h at 38.5 °C under 5 % CO2 in humidified air. After IVM, cumulus cell expansion and oocytes nuclear canfiguration were determined. An average of 6.40?±?0.26 follicles was recorded per Jenny ovary, representing 3.37?±?0.46, 1.89?±?0.14 and 1.14?±?0.16, for the small, medium and large size follicles, respectively. Oocyte recovery was higher (P?0.05) in large and medium size follicle than in the small one (62 %, 60 % and 45.1 %, respectively). Small size follicles produced higher (P?0.05) percentage of Grade A COCs than large or medium size follicles. A higher number of oocytes was recovered by slincing and scraping of follicles (4.86?±?0.67), then aspiration of follicles using 18-G needle (3.14?±?0.36 COCs/ovary, P?0.05). Aspiration using 18-G needle or slicing and scraping of follicles using produced a significantly higher (P?0.05) percentage of Grade A COCs compared to aspiration of follicles using 20-G needle (56.6 %, 46.7 % and 32.0 %, respectively, P?0.05). IVM of COCs in CR1aa and TCM 199-F12 media significantly increased (P?0.05) Grade 3 cumulus-cell expansion compared with TCM199, DMEM-F12, DMEM-LG and DMEM-HG (65.5 % and 64.0 %, 52.8 %, 32.1 %, 0.0 % and 7.4 %, respectively). The proportion of IVM oocytes reaching the M II stage was significantly higher (P?0.05) for oocytes matured in TCM199-F12 or CR1aa media than TCM199, DMEM-HG, DMEM-LG, DMEM-F12 (69.1 % and 62.2 %, 55.7 %, 45.8 %, 39.0 % and 40.7 %, respectively). The proportion of degenerated oocytes IVM in TCM199-F12 (10.3 %), CR1aa (11.3 %) or TCM199 (13.1 %) was lower (P?0.05) than that matured in DMEM-HG, DMEM-LG or DMEM-F12 media (23.7 %, 29.3 % and 22.9 %, respectively). Conclusion: Slicing and scraping or aspiration of follicles using 18-G needle increased the number and percentage of Grade A Jennies oocytes. TCM199-F12, CR1aa and TCM199 medi are more suitable for IVM of Jenny oocytes by promoting cumulus cells expansion and nuclear maturation to M II stage. 相似文献
66.
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68.
Large alveolar cells of normal dog lung are rich in enzymes concerned with oxidative and synthetic pathways. In three experimental situations where ability of the lung to produce surfactant was impaired, the enzyme-rich cells were lacking or absent. Findings support the concept that these cells are sites of active metabolism, possibly including production of surfactant. 相似文献
69.
Said AW Usui T Shinya K Ono E Ito T Hikasa Y Matsuu A Takeuchi T Sugiyama A Nishii N Yamaguchi T 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2011,73(4):541-544
A sero-epidemiological survey of human and equine H3 influenza A virus infections in dogs and cats using the hemagglutination inhibition (HI) and neuraminidase inhibition (NI) tests was conducted. Serum samples were collected from 582 dogs and 237 cats in Japan during the periods 2002-2008 and 1997-2008, respectively. Although no HI antibodies against equine H3 virus were detected, 9 (3.8%) from cats and 12 (2.1%) from dogs were HI-positive against human H3 virus. Only one serum each from dogs and cats was NI-positive against N2 virus. These findings suggest that although equine H3 influenza virus infections have not been prevalent in companion animals, human H3N2 influenza A virus infections have occurred in dogs and cats in recent years in Japan. 相似文献
70.