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通过研究金融支持企业自主创新的机制，分析安徽省金融支持企业自主创新中存在的问题，提出金融支持企业自主创新的对策。 相似文献
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中国几种主要土壤的持水性质 总被引：35，自引：0，他引：35
土壤的持水性是指土壤吸持水分的能力。在对植物的有效范围内,土壤所吸持的水分是由土壤孔隙的毛管引力和土壤颗粒的分子引力所引起的,这两种力现在统称为土壤吸力,或基质吸力,它相当于土壤总水势中的基质势。 相似文献
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粤引红脐橙品种树形呈自然圆头形,树势中等,成枝力强,枝梢较开张。成花能力强,与枳、枳橙、温州蜜柑和甜橙嫁接表现亲和。果个中等,单果质量180g左右,近球形;闭脐或露脐;果皮橙色,果肉紫红色。可溶性固形物含量15.0%,可滴定酸含量0.876%,维生素C594.0mg/L,总糖116g/L,固酸比17.12:1,肉质脆嫩化渣,风味清甜,有独特芳香味,无核,品质优。成熟期为翌年1月份,耐贮,留树挂果可贮至2月份,常温下常规贮藏,能保存至3月底,品质风味优良。 相似文献
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采集川西北阿坝州红原县和甘孜州理塘县总计402份牦牛粪便样本,采用廖氏计数法（改良）对4类常见体内寄生虫虫卵进行形态学观察并计数,以了解该地区牦牛体内寄生虫感染情况。结果表明,红原县牦牛体内线虫、绦虫、吸虫、球虫虫卵或卵囊（EPG或OPG）的平均感染量分别为11.59、23.77、42.45和14.72,总感染量为92.53（48.91~154.90）;平均感染率分别为18.01%、36.62%、44.68%、17.37%,总感染率为76.39%,表明吸虫是红原的优势寄生虫虫种,绦虫也是重要虫种。理塘县牦牛线虫、绦虫、吸虫、球虫的虫卵或卵囊（EPG或OPG）的感染量分别为52.38、13.10、20.24和1.19,总感染量为86.90;感染率分别为52.38%、19.05%、23.81%和2.38%,总感染率为78.57%,表明线虫为该地区的优势虫种。红原县和理塘县两地牦牛体内寄生虫虫卵感染主要以单一感染和二重感染为主,二者的总和分别为69.31%和78.57%,分别占总感染率的90.73%和100%。本研究结果证实牦牛寄生虫病目前仍是危害牦牛生产和当地牧民健康的一类重要疫病。该研究丰富了川西北高原地区牦牛体内寄生虫病的流行病学资料,为该地区牦牛寄生虫病的防控提供了理论依据。 相似文献
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试验结果表明:粤引红脐橙树形呈不规则的自然圆头形.树势中等,成枝力强,枝梢较开张,成花能力强,与枳、枳橙、温州蜜柑和甜橙嫁接表现亲和;果实中等大,单果重180 g左右,近球形、闭脐或露脐,果皮橙色;果肉紫红色,可溶性固形物含量15.0%,可滴定酸含量0.88%,维生素C含量0.594 mg/mL,总糖11.6%,固酸比17.1,肉质脆嫩化渣、风味清甜有独特芳香味,无核;成熟期在翌年1月,耐贮藏,留树挂果可贮藏至2月,常温下常规贮藏能保存至3月底. 相似文献
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对冷季型草坪的一种为害日趋严重的害虫——淡剑袭夜蛾,进行了不同药剂、不同施药方式的防治方法试验,试验采用单因素随机区组设计,设三个处理,即毒土法、氯氰菊酯浇灌法和灭幼脲淋洒法,并设清水喷雾为对照,三次重复,结果表明,前三种防治方法与对照差异极显著,以氯氰菊酯浇灌法防治效果为最好。最后对三种防治方法进行了分析,指出三种防治方法可以在生产中针对不同的防治目标选择使用,并提出了坚持化学防治与生物防治和其它防治方法相结合的防治原则。 相似文献
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JI Hui-shu LUO Guang-rong XIAO Min ZEWANG Ren-zhen ZHU Qing CHEN He-qiang ZHANG Jun-jie GUO Zheng-hong YUE Lei ZHOU Jun WEN Juan YANG Qi-yue YANG Xiao-nong 《中国畜牧兽医》2017,44(2):561-567
To understand the infection of main internal parasites in yaks, total of 402 fecal samples of yaks were collected from Hongyuan county in Aba prefecture and Litang county in Ganzi prefecture, the morphological characteristics of 4 kinds of internal parasitic eggs or oocysts were observed and the numbers of them were counted using the modified Liao's counting method. The results showed that in yaks of Hongyuan county, the average infection intensities of EPG or OPG of nematodes, cestodes, trematodes and coccidian were 11.59, 23.77, 42.45 and 14.72, respectively, and the total number of infections was 92.53 (48.91 to 154.90); The average infection rates of eggs or oocysts of these 4 kinds of parasites were 18.01%, 36.62%, 44.68% and 17.37%, respectively, and the total infection rate was 76.39%, which proved that trematodes was the dominant parasitic species and cestodes was also an important one in this area. In yaks of Litang county, the average infection intensities of EPG or OPG of nematodes, cestodes, trematodes and coccidian were 52.38, 13.10, 20.24 and 1.19, respectively, and the total number of infections was 86.90, the average infection rates of eggs or oocysts of these 4 kinds of parasites were 52.38%,19.05%,23.81% and 2.38%, respectively, the total infection rate was 78.57%, which proved that nematodes was the dominant parasitic species in this area. The infection patterns of internal parasitic eggs or oocysts in yaks in Hongyuan and Litang county were all mainly the single and double infection, the sums of these two patterns were 69.31% and 78.57%, respectively, which accounted for 90.73% and 100% of the total infection rate, respectively. The results in this paper showed that the parasitic disease in yaks was still an important disease harmful to yak production and herdsman health, meanwhile these results enriched the epidemiological data of the internal parasitic disease of yaks in Northwest plateau of Sichuan province and provided a theory basis for prevention and control of parasitic diseases in yaks in this area. 相似文献