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  demonstration experiment
In a related demonstration experiment, the frequency-doubled diode laser is applied to excite the λ=369.5 nm 2S1/2-2P1/2 transition of ytterbium ions in a hollow-cathode discharge.
      
A system of criteria is discussed which is necessary for the realization of a direct gamma-lasing demonstration experiment (DGLDE) as a basis for a specific gamma laser (GL) scheme.
      
The demonstration experiment has been proved useful in elementary thermodynamic courses for introducing the entropy concept.
      
A demonstration experiment in one of these counties revealed that patients who normally require hospitalization at the state institution could be treated at the county facility.
      
In a demonstration experiment, a 80-ns pulse of kilowatt power with frequency modulation in a 5% band was compressed to a 1.5-ns pulse with a 25-fold power amplification.
      
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Results of experiment showed that, for the hybrid rcie with a high yield of more than 1000 jin per mu, the N requirement of early hybrid rice was more than that of general cultivar, while that of late hybrid rice was less than that of general cultivar. The amount of N absorbed by hybrid rice in the middle growing stage was over half of the total amount absorbed in its whole growing period; however, the N supply by soil was less in the middle growing stage of rice. To meet the N requirement of hybrid rice, a...

Results of experiment showed that, for the hybrid rcie with a high yield of more than 1000 jin per mu, the N requirement of early hybrid rice was more than that of general cultivar, while that of late hybrid rice was less than that of general cultivar. The amount of N absorbed by hybrid rice in the middle growing stage was over half of the total amount absorbed in its whole growing period; however, the N supply by soil was less in the middle growing stage of rice. To meet the N requirement of hybrid rice, a method of applying larger part of N fertilizer in middle growing stage on the basis of maintaining steady supply of N in early growing stage was adopted, which gave a yield increase of early rice ranging from 2.97—8.99% and that of late rice ranging from 7.54—14.06%. It was also found that due to the adoption of this method, the number of ears per mu and that of grains per ear were increased, all these indicate that the application method is suitable for hybrid rice characterized by vigorous growth of root system and tillers in early growing stage, and growing predomince of ears and grains in middle growing stage, and it may also prevent the rice from premature senility. Therefore, it is favorable for promotion the yield potential of the hybrid rice.

本试验结果表明:杂交水稻亩产千斤,早稻需要的氮素营养比常规稻多,晚稻则相反;杂交早稻和晚稻都以生育中期为吸肥最多的时期,吸收的氮量占全生育期吸氮总量的一半以上,土壤供氮则相反。本试验从协调水稻吸氮、土壤供氮和人工补氮三者之间的平衡关系出发,设计的“稳前攻中”施肥法,在衡阳几种土壤上进行对比示范试验结果表明,无论是杂交早稻还是杂交晚稻都表现有显著的增产效果,增产幅度:早稻为2.97—8.99%,晚稻为7.54—14.06%。“稳前攻中”施肥法增加了中、后期的氮肥比例,从而增加了每亩穗数和每穗粒数。“稳前攻中”施肥法,减少了前期施肥,不仅充分利用了杂交水稻生育前期的根系优势和分蘖优势,发挥了生育中期的穗粒优势,而且还能防止早衰,巩固后期优势,充分挖掘杂交水稻的增产潜力。

The new spring wheat variety "Jimai No.2 " has been developed from the composite cross (Luo 16×Longchun No.1) × Liaochun No.7 through many years evaluation. It gained higher yield than the control "Xinshuguang No.1" by 12.4% at 18 sites in the combined Regional Test for Dry-land Wheat Varieties from 1983 to 1985, ranking first among the entries evaluated. It also performed much better than the control(increasing yield by 15.4%) in the large scale production test in Qianguo and other three counties in 1985. After...

The new spring wheat variety "Jimai No.2 " has been developed from the composite cross (Luo 16×Longchun No.1) × Liaochun No.7 through many years evaluation. It gained higher yield than the control "Xinshuguang No.1" by 12.4% at 18 sites in the combined Regional Test for Dry-land Wheat Varieties from 1983 to 1985, ranking first among the entries evaluated. It also performed much better than the control(increasing yield by 15.4%) in the large scale production test in Qianguo and other three counties in 1985. After careful investigation and certification, Jimai No.2 was so named by the Evaluation Committee for Crop Varieties in Jilin Province. Jimai No.2 belongs to the variety erythro-spermum Korn with spring growth habit. It has a growing length of 82 days or so and develops slowly but steadily and strongly during prophase, with resistance to drought and salty-alkaline soil. The grain-filling rate of it is also very high with better quality for losing green color and humidity resistance during anaph It is resistant to many sorts of diseases such as Black loose smut of wheat, Black stem rust and tiller rust, and to Powder mildew and Foot root of wheat to some extent. To make use of its character of large spikes and grains, more fertile tillers and seeds,an appropriate planting density ought to be employed according to the soil fertility and moisture in a region. The cultivation with more fertilizer and water is not suitable, but multiple cropping is suitable after harvesting the crop of this variety.

“吉麦2号”是以(罗16×陇春1号)×辽春7号复合杂交育成。1983年—1985年吉林省春小麦新品种联合区域试验(旱作组)及1985年在前郭等4县生产示范试验中,平均比对照品种新曙光1号分别增产12.4%和15.4%,表现优良,增产显著。1986年3月20日经吉林省品种审定委员会审定,通过“农大836”为春小麦新品种,定名“吉麦2号”。确定在吉林省中、西部等旱种地区推广种植。“吉麦2号”属春性,出苗至成熟82天左右,生育前期生长稳健,抗旱和抗盐碱性土壤能力较强;生育后期灌浆速度较快,耐湿性强,成熟时落黄好;抗秆锈病和叶锈病,鞍抗散黑穗病,白粉病和根腐病发病轻。根据土地肥力与土壤水分状况切实掌握适宜密度,以充分利用该品种分孽力较强、成熟率高、穗大、粒多、粒重等特点获得好收成;不适于大肥大水条件栽培,是复种的较好前作物品种。

Plot tests as well as extensive experiments in 1982-85 showed good effects of rare earth elements on the Chiniese narsissus(Narcissus tazetta var.chinensi,Roem).These were hastening of seedling emergence,exten- sion of leaves,growth of leaf blades.increased contents of chloropylls, cnlargement of bulbs,raising the percentage of big flower bulbs,increas- ing yields,as Well as the number of inflorescence. Experimental results of three consecutive years in small plots showed seed soaking treatment together with...

Plot tests as well as extensive experiments in 1982-85 showed good effects of rare earth elements on the Chiniese narsissus(Narcissus tazetta var.chinensi,Roem).These were hastening of seedling emergence,exten- sion of leaves,growth of leaf blades.increased contents of chloropylls, cnlargement of bulbs,raising the percentage of big flower bulbs,increas- ing yields,as Well as the number of inflorescence. Experimental results of three consecutive years in small plots showed seed soaking treatment together with spray treatment was much better than either seed soaking treatment or spray treatment.The best result was seed soating with low concentration rare earth nitrate solution with further foliar sprays of the same solution at the young seedling stage and growing bulb stage.Such treatment obtained the highest rate of flower bulb.Statis- tical analysis of the data revealed that the deviation attained the level of significance The average thtee years data showed that the flower bulb cir- cumference attained≥24cm and 22-23.9cm.The best treatments were 14.5% and 40.5%.In comparison with the results form the check of 8.6% and 32.6%,the increases were 67.6% and 24.2%.The average number of inflo- rescene was 4.1 infloresence/bulb.In comparison with fhe check of 3.6 in- florescence/bulb,it gave an ilcrtease of 13.9%. Taking the best treatment from the small plot tests for bigger area ex- tensive experiments showed that big flower bulb circumference with≥24 cm obtained increased yield of 58.0% and in compariSon with the result of the check 48.0% the increase was 2008%.Such rare earth elements treatment gave 4.7 inflorescence/bulb,in comparison with the check of 4.4 inflores- ecnce/bulb,the increase was 6.8%. The good effects of rare earth elements treatments increased the yield of big flower bulbs and the number of inflorescence per bulb.Thus emi- nently increased the economic returns of narcissus industry,as the value at- tained an increase of ovet ¥7500,the output profit reached a 9.7% increase.

1982~1985年的小区试验及扩大示范试验表明:稀土元素能促进中国水仙出苗、展叶、叶片生长、叶绿素增加;并能促进磷茎膨大、增加大花球百分率而提高大花球产量;同时对改善中国水仙品质、增加花葶数也有良好的作用。三年定点小区试验结果:采用浸种配合喷施处理的效果优于单独浸种或单独喷施的处理。最佳处理组合:低浓度浸种配合初苗期和壮球期用低浓度喷叶,大花球百分率最高。三年平均:磷茎围径≥24cm 和22~23.9cm 的大花球,最佳处理组合为14.5%和40.5%,比对照的8.6%和32.6%分别增加67.6%和24.2%。平均花葶数,最佳处理组合为4.1葶/粒,比对照的3.6葶/粒增加13.9%。扩大示范试验的结果表明:磷茎围径≥24cm 的大花球,稀土处理为58.0%,比对照的48.0%增加20.8%;平均花葶数,稀土处理为4.7葶/粒,比对照的4.4葶/粒增加6.8%。中国水仙施用稀土,由于提高了大花球产量和增加了花葶数,从而能显著地提高经济效益。每公顷可增加产值7500元以上,即增加产值9.7%以上。

 
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