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101.
102.
Yasutomo Hori Masayuki Iguchi Yasuhiro Heishima Yohei Yamashita Kensuke Nakamura Atsushi Hirakawa Akihito Kitade Toshiki Ibaragi Michio Katagi Tamotsu Sawada Masashi Yuki Nobuyuki Kanno Haruki Inaba Noriko Isayama Hideyuki Onodera Naoki Iwasa Mikio Kino Mikihiro Narukawa Syuhei Uchida 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2018,32(3):922-929
103.
Advanced treatment technique for swine wastewater using two agents: Thermally polymerized amorphous silica and hydrated lime for color and phosphorus removal and sulfur for nitrogen removal 下载免费PDF全文
The efficacy of advanced treatment of swine wastewater using thermally polymerized, modified amorphous silica and hydrated lime (M‐CSH‐lime) for color and phosphorus removal and sulfur for nitrogen removal was examined with a demonstration‐scale treatment plant. The color removal rate was approximately 78% at M‐CSH‐lime addition rates of > 0.055 wt/v%. The ‐P removal rate exceeded 99.9% with > 0.023 wt/v%. pH of the effluent from the M‐CSH‐lime reactor increased with the addition rate till a maximum value of 12.7, which was effective in disinfection. The recovered M‐CSH‐lime would be suitable as a phosphorus fertilizer because the total P2O5 content was approximately 10%. The nitrogen oxide (NOx‐N) removal rate by sulfur denitrification increased to approximately 80% when the NOx‐N loading rate was around 0.1 kg‐N/ton‐S/day. It was suggested that the combination of the two processes would be effective in the advanced treatment of swine wastewater. 相似文献
104.
Two loosely linked genes controlling the female specificity for cross-incompatibility in rice 总被引:1,自引:0,他引:1
Yohei Koide Mitsunobu Ikenaga Yuhei Shinya Kazuki Matsubara Yoshio Sano 《Euphytica》2008,164(3):753-760
Cross-incompatibility caused by endosperm abortion was found in advanced generations of backcrossing between the Asian wild
(W593) and cultivated (T65wx) rice strains. The near isogenic line, T65WxS
6
(W593), carrying a segment of chromosome 6 from W593 showed a low seed setting when pollinated with pollen grains of T65wx in spite of the fact that the reciprocal cross gave a high seed setting. The unidirectional or asymmetric crossing barrier
was previously explained by an interaction between Cif and cim, both of which acted sporophytically, resulting in the cross-incompatibility reactions in the female (CIF) and male (CIM),
respectively. In the genetic model, endosperm abortion is induced only when CIF gametes are fertilized with CIM gametes. This
predicted that the double homozygote for Cif and cim might be self-incompatible since the plant expresses both CIF and CIM simultaneously. However, we failed to obtain such a
self-incompatible plant by transferring Cif into a cim plant. The present results showed that CIF is controlled not only by Cif but also by an additional gene(s) loosely linked with it. We propose here that Cif
1
(formerly named as Cif) and Cif
2
determine CIF. In addition, Cif
2
and Cim were not separated due to restriction of recombination, which might explain why it is difficult to obtain a self-incompatible
rice plant expressing both CIF and CIM. 相似文献
105.
Masahiro Horinouchi Prasert Tongnunui Kusuto Nanjyo Yohei Nakamura Mitsuhiko Sano Hisao Ogawa 《Fisheries Science》2009,75(6):1409-1416
Fish assemblage structures in fragmented and continuous seagrass habitats in Trang Province, Thailand, were examined in detail
to elucidate the effects of habitat fragmentation. The assemblage structures clearly differed: fish species diversity was
apparently higher in the fragmented seagrass beds, although total fish numbers did not differ between them. A total of 37
fish species were collected, including 24 and 34 species from the continuous and fragmented beds, respectively. Thirteen species
were restricted to the fragmented beds, compared with three restricted to the continuous beds. In addition, eight species
were more abundant in the fragmented beds and only two in the continuous beds. Such differences may have arisen, at least
in part, from differences in microhabitat diversity and the relative amounts of microhabitats between the two habitat types,
as well as specific microhabitat preferences of the resident fishes. Although fragmented beds supported greater fish species
diversity at the present study sites, it is axiomatic that habitat fragmentation caused by anthropogenic disturbance is unacceptable,
with seagrass-habitat conservation being essential for both the preservation of high overall biodiversity and the successful
management of local fisheries. 相似文献
106.
Kentaro Honda Wilfredo H. Uy Darwin I. Baslot Allyn Duvin S. Pantallano Masaaki Sato Yohei Nakamura Masahiro Nakaoka 《Fisheries Science》2017,83(4):523-535
A passive acoustic telemetry survey was conducted to determine occurrence patterns of commercially important fishes on a steep reef slope along a marine protected area (MPA) in the southern Philippines, where the outer reef edge is often set as an offshore MPA boundary. Based on 4–61 days of tracking data from 21 detected individuals of five species (Lutjanus argentimaculatus, Lutjanus monostigma, Lethrinus atkinsoni, Lethrinus obsoletus, and Siganus guttatus; 20.7–69.2 cm fork length) caught near the reef slope of the MPA, S. guttatus occurred most frequently on the reef flat of the MPA, whereas all individuals of the four lutjanid and lethrinid species were primarily (99.4–100%) detected near the reef slope, and nine individuals (56.3% of these four species) of three of these species (not L. obsoletus) most likely used the shallow (≤10 m) and deep (≥20 m) layers, and thus, middle layers of the slope. These findings indicate that commercially important lutjanid and lethrinid species predominantly and vertically used the areas near the reef slope, suggesting the importance of fully including reef slopes in MPAs to enhance their effectiveness for the conservation of such fishes. 相似文献
107.
108.
Kusuto Nanjo Hiroyoshi Kohno Yohei Nakamura Masahiro Horinouchi Mitsuhiko Sano 《Fisheries Science》2014,80(1):21-41
In order to clarify the mechanisms determining fish distribution patterns in a mangrove system on Iriomote Island, in southern Japan, fish assemblage structures were determined by visual observation, along with food abundance and environmental factors, in an area of mangrove roots on the banks, and a bare sand area at the center, within downstream, midstream and upstream portions of a branch creek from the Urauchi River. The fish assemblage structures differed significantly between the area types, with the mangrove-root area supporting a more diverse and abundant fish fauna. A canonical correspondence analysis revealed that the relationships between fish distribution and their food abundance differed among trophic groups. Benthic crustacean or plant feeders were positively associated with their prey i.e. crabs and macroalgae—in other words, these trophic groups were abundant in downstream and/or midstream mangrove-root areas in which their prey were also particularly abundant. However, zooplankton feeders did not show such relationships, their abundance being positively associated with fine sediment particles (characteristic of areas with weak water movement). These results suggested that food availability is a major factor determining the distribution patterns of benthic crustacean feeders and plant feeders, whereas for zooplankton feeders other factors, such as sheltering effects against water current and/or predators, may be more significant. 相似文献
109.
Hajime Goto Noriyuki Asanome Keitaro Suzuki Tomoyoshi Sano Hiroshi Saito Yohei Abe Masaru Chuba Takeshi Nishio 《Breeding Science》2014,63(5):489-494
The whiteness of cooked rice and rice cakes was evaluated using a portable spectrophotometer with a whiteness index (WI). Also, by using boiled rice for measurement of Mido values by Mido Meter, it was possible to infer the whiteness of cooked rice without rice cooking. In the analysis of varietal differences of cooked rice, ‘Tsuyahime’, ‘Koshihikari’ and ‘Koshinokaori’ showed high whiteness, while ‘Satonoyuki’ had inferior whiteness. The whiteness of rice cakes made from ‘Koyukimochi’ and ‘Dewanomochi’ was higher than the whiteness of those made from ‘Himenomochi’ and ‘Koganemochi’. While there was a significant correlation (r = 0.84) between WI values and whiteness scores of cooked rice by the sensory test, no correlation was detected between the whiteness scores and Mido values, indicating that the values obtained by a spectrophotometer differ from those obtained by a Mido Meter. Thus, a spectrophotometer may be a novel device for measurement of rice eating quality. 相似文献
110.
Yusuke Shimoi Daichi Honma Airi Kurematsu Yukari Iwasaki Yohei Kotsuchibashi Yusuke Wakikawa 《Soil Science and Plant Nutrition》2020,66(3):429-437
ABSTRACT Chitin, which is the polymer of N-acetylglucosamine (GlcNAc) linked by β1,4 glycoside bonds, has been reported as a soil amendment to mitigate plant soil diseases, increasing the population of chitin-degrading bacteria, and chitinolytic enzymatic activity in the soil. In some chitin-degrading bacteria, whose chitinolytic systems have been intensively studied, the chitin degradation product N,N?-diacetylchitobiose {(GlcNAc)2} induces expression of genes for chitinases whereas GlcNAc does not. To evaluate the effects of these mono- and disaccharides on the population and activity of chitinolytic bacteria in soil, we investigated the chitinolytic enzyme activity and bacterial community structure in an incubated upland soil supplemented with GlcNAc or (GlcNAc)2. The added GlcNAc and (GlcNAc)2 (2 mg g?1) were consumed within 1 d when incubated at 25°C. Chitinase activity was induced by (GlcNAc)2 and chitin after 1-d and 7-d incubation, respectively, but not by GlcNAc. N-acetylglucosaminidase (GlcNAcase) activity was induced by GlcNAc but was lower than those by (GlcNAc)2 and chitin. Amplicon sequencing analysis targeting 16S rRNA genes demonstrated that both GlcNAc and (GlcNAc)2 significantly increased the rate of the order Bacillales, but the compositions of Bacillales differed from each other: the family Planococcaceae significantly increased in either GlcNAc- or (GlcNAc)2-added soil, but the genera Bacillus and Paenibacillus were increased mainly by GlcNAc and (GlcNAc)2, respectively. The family Streptomycetaceae of the order Actinomycetales was significantly increased by (GlcNAc)2 and chitin, but GlcNAc did not. Thus, GlcNAc and (GlcNAc)2, which were promptly consumed in the incubated soil, indicated partly similar but distinctive effects on chitinolytic enzyme activity and bacterial communities. Both aminosugars increased GlcNAcase activity and the population size of Planococcaceae. GlcNAc increased Bacillus. Chitinase activity and the populations of Paenibacillus and Streptomycetaceae, a number of strains of which are known as potent chitin-degraders, were increased by (GlcNAc)2, but not by GlcNAc. 相似文献