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crop straw     
相关语句
  农作物秸秆
     Emission Factor of PM_(2.5) from Crop Straw Burning
     农作物秸秆燃烧PM_(2.5)排放因子的研究
短句来源
     Research Progress of Development Utilization Technology in Crop Straw
     农作物秸秆开发利用技术研究进展
短句来源
     Case analysis of crop straw gasification use technology and commercialization operation
     农作物秸秆气化利用技术与商业化经营案例分析
短句来源
     Comprehensive Exploitation and Utilization of Crop Straw
     农作物秸秆的综合开发利用
短句来源
     Status and prospects of crop straw comprehensive utilization in hilly red soil region.
     红壤丘陵区农作物秸秆综合利用现状与展望
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  秸秆
     The total amount of crop straw was 5.541×10 8 t in which there were 4.939 ×10 6 t N, 1.567×10 6 t P 2 O 5 , 9.825×10 6 t K 2 O and 1.633×10 7 t of total nutrient.
     结果表明 ,2 0 0 0年全国秸秆资源总量达 5 .5 4 1× 10 8t,其中含有的N、P2 O5、K2 O分别为4 .939× 10 6t、15 6 7× 10 6t、9.82 5× 10 6t,总养分为 1.6 33× 10 7t;
短句来源
     Emission Factor of PM_(2.5) from Crop Straw Burning
     农作物秸秆燃烧PM_(2.5)排放因子的研究
短句来源
     Applying crop straw and manure by 56.25 t/hm 2 for 3 years and could rise the soil organic matter 19.97 percent and 18.16 percent respectively.
     秸秆还田和年施有机肥56.25 t/hm2 ,3 a 内可使土壤有机质相对增加19 .97 % 和18 .16 % ;
短句来源
     Studies on Ecological Synthesis Utilization of Crop Straw
     作物秸秆生态化综合利用研究
短句来源
     Case analysis of crop straw gasification use technology and commercialization operation
     农作物秸秆气化利用技术与商业化经营案例分析
短句来源
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  作物秸秆
     Studies on Ecological Synthesis Utilization of Crop Straw
     作物秸秆生态化综合利用研究
短句来源
     Analysis on the Current Status of Utilization of Crop Straw in China
     中国作物秸秆资源利用现状分析
短句来源
     In this region,rice straw accounted for 53.5% of total crop straw,which was 21.4% higher than the average countrywide value.
     其中,稻草产量占该区作物秸秆总产量的53.5%,比其全国均值高出21.4个百分点;
短句来源
     Study on agricultural comprehensive utilization of crop straw
     作物秸秆资源的农业综合利用研究
     Effective Utilization of Crop Straw for Goat
     山羊对作物秸秆的利用
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  作物秸杆
     According theoretical potential of the natural grassland, artificial grassland and crop straw, result shows that practical animal carrying capacity do not reach the top of theoretic animal carrying capacity and developing potential is 39%.
     根据天然草地、人工草地和作物秸杆的理论潜力对定西县理论载畜量进行计算,结果表明目前定西县的现实载畜量还没有达到理论极限值,还有39%的发展潜力。
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      crop straw
    In table, the unit is 10 thousand m2 1.2.1 Crop straw utilization The agriculture and forest residue is mainly used as energy in direct-fired.
          
    Furthermore, crop straw generation power, biomass solidified technology and fuel technology is beginning just now.
          
    Burning crop straw causes the closing of airport and highway.
          


    4 fter the rice blast straw of the first crops have been returned to the ield. or in the paddy field flooded with water, mycelia in the infected straw may live as long as 3-7 days. those burried in soil 3.3-6.7 cm deep may live only one day. while those burried in a depth of 10 cm can live not more than a day If the straw was scattered anywhere in the field, the mycelia may live 41 83 days, thus becoming the source of blast infection for the succeeding crops. The infected rice blast...

    4 fter the rice blast straw of the first crops have been returned to the ield. or in the paddy field flooded with water, mycelia in the infected straw may live as long as 3-7 days. those burried in soil 3.3-6.7 cm deep may live only one day. while those burried in a depth of 10 cm can live not more than a day If the straw was scattered anywhere in the field, the mycelia may live 41 83 days, thus becoming the source of blast infection for the succeeding crops. The infected rice blast straw of the second crops that was back to the field, rice blast mycelia in the water of the paddy field may live as long as 17-35 days. those burried in the soil 3.3-10 cm depth may live for 4-8 days. Mycelia on the surface of straw piles in the field retain their lability no less than 168 days. Thus became the source of blast infection lor the first crops of next year In northern part of Fujian. under dry conditions at room temperature. mycelia of the first crops straw may live more than 10-11 months. mycelia in the straw of second crops more than 13-15 months. The former acts as the source of blast infection for next year crops. the later acts as the source infection of the first and second crops next year The reasons of the sudden death of the mycelia of the first crops straw that was back to the field are also discussed.

    早稻病草回田后,浸在田水里病草中稻瘟病菌的存活期为3~7天,埋在田土下1~3寸处为1天,有灭菌防病的作用;不回田弃置或堆放田间存活期达41~71天以上,可为晚稻发病的菌源。晚稻病草回田,耕翻土下,埋在塘泥中,复盖紫云英和散在冬闲田上,除复盖紫云英少数架在稻桩上离开地面的病草外,均不可能成为翌年早稻发病的初侵染源。晚稻稻草堆表面病草中的稻瘟病菌存活期达168天以上,为翌年早稻发病的重要菌源。在大气湿度较高的阈北地区,室内早稻干燥病草中稻瘟病菌的存活期为10~12个月,晚稻为13~16个月之间。前者可为翌年早稻,后者不仅为翌年早稻,还为晚稻全生育期提供发病的茵源。文中还对早稻病草回田后病草中稻瘟病菌迅速死亡的原因作了分析和讨论。

    Under four trpical cropping systems in red-soil hilly areas, effects of the turning-over of crop straw into red-soil upland on the fauna and dynamic of soil microorganisms and,enzyme activity were investigated in both field and pot experiments. Results showed that soir microorganisms and enzyme activity were restricted under hydrothermal conditions of monsoon climate, which limited mineralization-humifications of organic material. Decomposing capacity of cellulose appeared to be: late spring-early summer...

    Under four trpical cropping systems in red-soil hilly areas, effects of the turning-over of crop straw into red-soil upland on the fauna and dynamic of soil microorganisms and,enzyme activity were investigated in both field and pot experiments. Results showed that soir microorganisms and enzyme activity were restricted under hydrothermal conditions of monsoon climate, which limited mineralization-humifications of organic material. Decomposing capacity of cellulose appeared to be: late spring-early summer > middle summer-early autumn > winter. Of the four cropping systems, rape/peanut planting system brought about the best action for soil ameliration and yield increase in circulation utilization of crop straw. To achieve full effect of soil microbiology, the suitable application of N-fertilizer was suggested to combine with the turning-over of crop straw into red-soil upland.

    通过田间和盆钵试验,研究红壤旱地4种种植方式下,稿秆还地对土壤微生物区系和群落的消长,以及土壤酶活性的影响。研究结果表明:土壤微生物和酶的活性受制于季风气候下的水热状况,并制约有机物质的矿质化—腐殖化过程;纤维分解率是春末仲夏>伏夏初秋>冬季;稿秆自养循环的培肥增产效果以油菜/花生制最好。在生产中应配施氮化肥,以充分发挥有机肥的微生物学效应。

    The effects of different fertilizing ways on soil organic matter were different. The increase of the total content of soil organic matter in five years before soil fertilizing was as follows: farm manure>crop straw left in soil>sweet clover left in soil>fertilizer, while in control plot the content went down. The contents of organic matter in heavy fraction, complex organic matter and differently combined humus in organo-mineral complexes changed markedly. Applying organic material to the soil is the important...

    The effects of different fertilizing ways on soil organic matter were different. The increase of the total content of soil organic matter in five years before soil fertilizing was as follows: farm manure>crop straw left in soil>sweet clover left in soil>fertilizer, while in control plot the content went down. The contents of organic matter in heavy fraction, complex organic matter and differently combined humus in organo-mineral complexes changed markedly. Applying organic material to the soil is the important way to increase soil fertility.

    不同施肥途径对土壤有机质的影响各异,有机质总量比培肥前5年累积增长为:有机肥>秸秆还田>草木樨还田>化肥,对照区有所下降。重组有机质、复合有机质及复合体中不同结合态腐殖质也发生明显变化。有机物料培肥土壤是提高土壤肥力的重要途径。

     
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