助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   light-planting 的翻译结果: 查询用时:0.007秒
图标索引 在分类学科中查询
所有学科
植物保护
更多类别查询

图标索引 历史查询
 

light-planting
相关语句
  “light-planting”译为未确定词的双语例句
     Studies on Occuring Regularity and Comprehensive Control of Weed in the Light-planting rice field
     轻型栽培稻田杂草群落发生特点及其综防技术
短句来源
  相似匹配句对
     Light Night
     明亮夜
短句来源
     Light the Future
     点亮未来
短句来源
     Light Z-matrix
     轻Z—矩阵
短句来源
     Laser light-liver
     激光光杠杆的研制
短句来源
     Planting
     种植花木
短句来源
查询“light-planting”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
没有找到相关例句


Two-line hybrid rice may be produced the seeds of hybrid rice,it requires complete the set with ster-ile and reatoring line only and needs not the maintaince line of three-line method. N5088S is“one line for two uses”line Its spike is sterile under long light(>14h),and can achieve hybrid Seeds as crossing with restoring line;but it is fertile under short light(<13.5h)and reproduces sterile line Seeds.The points of reproducing and high yield cultural techniques of N5088S are:selecting better field-land,soWing...

Two-line hybrid rice may be produced the seeds of hybrid rice,it requires complete the set with ster-ile and reatoring line only and needs not the maintaince line of three-line method. N5088S is“one line for two uses”line Its spike is sterile under long light(>14h),and can achieve hybrid Seeds as crossing with restoring line;but it is fertile under short light(<13.5h)and reproduces sterile line Seeds.The points of reproducing and high yield cultural techniques of N5088S are:selecting better field-land,soWing in good time,developing robust seedling,light planting suitably,guaranting the density,applying the base,fertilizer enough,spreading the tillerlng fertilier early,managing water carefully,controlling disease and pest,and roguing praservation of pure state in good time.

两系法杂交水稻只需要不育系和恢复系两系配套就可以生产杂交水稻种子,不需要三系法杂交水稻的保持系。粳型光敏核不育系N5088S就是这样的“一系两用”系,它在长光照下(>14h)抽穗不育,与恢复系制种获得杂交种子;在短光照下(<13.5h)则可育,繁殖不育系种子。两系法有利于提高种子纯度和降低种子生产成本。N5088S的繁殖高产技术要点是:选好田块,适时播种,培育嫩壮秧,适当稀植,保证密度,施足底肥,早施分蘖肥,精管水,防病虫,及时去杂、保纯。

Growth and development of the individual and the population for rice has change in different population. After light planting, the stem become thicker, the tillering ability became strong, the tillering climax was postpone, the superiority place of tillering was lost, the spike rate was increase. Light planting can be the climax of leaf area index postpone, the maximum become smaller. After coming into ear, the leaf area of activity has increased.

不同群体下,水稻个体和群体生长发育均发生了变化。群体变小后,水稻个体茎秆变粗,分蘖力增强,分蘖高峰期推迟,优势蘖位消失,成穗率提高;群体变小后,还能使水稻叶面积指数高峰期推迟,最大值变小,抽穗后功能叶叶面积变大

In 1992~1995, investigation on apple insect pests and their natural enemies in four different apple orchard ecosystems was systematically carried out in Beijing, the results showed that the density of predators on the apple trees in cover cropping system was higher than non tillage or clean cultivated system Increasing plant diversity in apple orchard ecosystems plays an important role in stabilizing the beneficial enemies The number of predators on the apple trees in cover cropping system was higher, and...

In 1992~1995, investigation on apple insect pests and their natural enemies in four different apple orchard ecosystems was systematically carried out in Beijing, the results showed that the density of predators on the apple trees in cover cropping system was higher than non tillage or clean cultivated system Increasing plant diversity in apple orchard ecosystems plays an important role in stabilizing the beneficial enemies The number of predators on the apple trees in cover cropping system was higher, and the peak population density of mites or aphids or leaf miners was lower than the non tillage system and clean cultivated system During the last two years′ the predators and parasitoids had controlled the secondary induced pests, such as spider mites, aphids and leaf miners, eliminating any need for pesticide applications The ratio of parasitized Lithocolletis rignoniella Mats in cover cropped system was 62 7%, which was 1 34 times as large as in the non tillaged system and 16 9 times as large as in the light planting clean cultivated system and 17 9 times as large as in the combine planting clean cultivated system A new design of cover cropping system consisted of two beneficial weeds, the Lagopsis supina and Hemistepta lyrata Bunge under the canopy of tree, instead of the chinese rape and cover crop, the alfalfa, in the row of apple trees In comparison with the past cover cropping system, the population density of predators on cover crops in the 3rd year after new cover cropping system was 12 5 times as large as in the first year The density of predators on apple trees was evidently increased The predator/prey ratio was changed from 1∶34 9 in the first year after new cover cropping system to 1∶14 4 in the second year after new cropping system, the result was equal to the ratio in the 5th year after the past cover cropping system

1992~1995年对四个不同类型苹果园进行了系统调查,结果表明引入夏至草、泥胡菜等有益杂草并与树行间种植的紫花苜蓿搭配的生草园,捕食性天敌发生量大,种群稳定,发生高峰期较免耕园、清耕园提前7d左右;害虫发生量低,种群数量变化平稳,无突增现象,生草园在未施用任何杀虫、杀螨剂的情况下,树冠上蚜虫、叶螨和潜叶蛾的平均虫口密度均低于免耕园、清耕稀植园和密植园。生草园寄生性天敌的数量亦明显增加,金纹细蛾的寄生率高达627%,分别是免耕园、清耕稀植和密植园的134倍、169倍和179倍。果园植被多样化可使地面植被上的天敌数量逐年成倍提高,生草第3年捕食性天敌的数量是生草当年的125倍,树冠上天敌量亦明显增加,益害比大大提高,生草第2年树冠上最大蝽螨比为1∶144,与原先油菜与紫花苜蓿搭配生草5年的效果相近。除当年生草果园(1992年)早期施用1次杀螨剂螨克外,1993、1994年均未施用任何杀虫、杀螨剂,通过天敌的自然控制作用,有效地控制果树害螨、蚜虫和金纹细蛾等次生性害虫的为害。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关light-planting的内容
在知识搜索中查有关light-planting的内容
在数字搜索中查有关light-planting的内容
在概念知识元中查有关light-planting的内容
在学术趋势中查有关light-planting的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社