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the rice yield
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  水稻产量
     By use of the dekad rainfall and isochronal yield data,the relationship between natural rainfall and the rice yield was analysed by the integral regression and multiple regression equations.
     利用旬雨量与历史同期产量资料,使用积分回归和多元回归等方法,分析自然降雨量与水稻产量的关系,以证实人工增雨对水稻产量提高所起的作用。
短句来源
     The results showed that the controlled release urea could increase urea-15N efficiency by 3.6419.92%,the soil residual N of urea-15N by 6.3720.86%, and the rice yield by 8.6625.70% as compared to urea. 
     结果表明:控释尿素比普通尿素氮肥利用率提高了3.64%~19.92%,土壤中N的残留量增加6.37%~20.86%,可提高水稻产量8.66%~25.70%。
短句来源
     The rice yield was 300 kg for the first year,500 kg for the second,fulfilled the high yield level.
     水稻产量第1年300kg,第2年500kg,达到丰产田水平。
短句来源
     The rice yield was increased by 25.4-214%,by 92%on the average.
     水稻产量明显提高,水稻增产幅度达25.4%-214%。
短句来源
     ④ the rice yield was the highest when the amount of N fertilizer applied to field was 324 kg/hm~2 and the ratio of basal fertilizer and fertilizer for tillering to fertilizer for heading was 6 to 4; the significant increase in total glumous flowers per unit area was the main cause of the increase of machine-transplanted rice yield.
     ④大田施N量324 kg. hm-2、基蘖肥∶穗肥=6∶4的处理产量最高,单位面积总颖花量的显著提高是机插水稻产量增加的主要原因。
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  “the rice yield”译为未确定词的双语例句
     The results indicate that the rice yield with balance fertilization is up to 10.09t/hm~(2),2.51t/hm~(2)higher than that of common applying.
     试验结果表明:水稻平衡施肥产量为10.09 t/hm2,较习惯施肥增产33.11%;
短句来源
     The rice yield of NT rice reached to 8979.0 kg·ha-1and 8588.0 kg·ha-1,increasing by 2.30%,1.19%,compared with CT on the average on DB and RT condition,respectively,although the difference was not significant between CT and RT.
     在直播和移栽条件下,免耕稻的产量平均分别为8979.0kg·ha-1和8588.0kg·ha-1,比翻耕稻分别增产2.30%和1.19%,但未达到5%的显著水平。
短句来源
     The rice yield and the planting effect are the most high at Nitrogen application amount 270 kg/hm~2 and base-promoting: tiller-promoting: ear-promoting are 40%:20%:40%.
     高产高效施氮方案为施氮量270 kg/hm2,基肥:蘖肥:穗肥氮素配比为40%:20%:40%。
短句来源
     The rice yield was increased by 4.7%~21.1%, the economic benefit was raised by 37.44~204.48 Yuan per acre, and I/O ratio was approximately 12:1.
     产量增加幅度为4.7%~21.1%,平均增产11.3%,亩增效37.44~204.48元,平均为99.2元,产投比约为12∶1。
短句来源
     The rice yield obtained at harvest was lower 13.8 kg than that of expected yield,the identical degree reached 97.5%.
     秋收实际水稻单产与目标产量进行比较,偏低13.8 kg,目标产量吻合度为97.5%。
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  相似匹配句对
     Counterfeit rice
     欢声起 真拳真打毒大米
短句来源
     Rice and its Function
     米及其功能
短句来源
     Research on the rice milk
     大米乳饮料生产的研究
短句来源
     On the technology of irrigation of rice
     论水稻生产的灌溉技术
短句来源
     Analyses of Effect of N, P and K on Yield of Rice
     N、P、K三要素对水稻产量的效应分析
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  the rice yield
The rice yield was 6.5 Mg ha-1 in15 m drain spacing where no ammonium losses throughsubsurface drainage effluent occurred.
      
Changes in climate in the decades of 2010, 2030, and 2050 could drastically reduce rice yield: the rice yield is estimated to decrease by about 1 % annually in East Java and less in West Java.
      
EUF extractable soil K correlated highly significantly with the rice yield response to K fertilizer, whereas the NH4 acetate extractable K (exchangeable K) did not.
      
Various strategies for increasing the rice yield potential being employed include: (1) conventional hybridization and selection procedures, (2) ideotype breeding, (3) hybrid breeding, (4) wide hybridization and (5) genetic engineering.
      
Problems in finding reliable datasets such as cloud cover data needed for the UV-B radiation model and radiation data needed for the rice yield model are discussed.
      
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The feces of silkworm was found containing extracted chlorlphyll 0.8-1.0% and carotenoid about 0.15%.The feces of silkworm was extracted with acetone, the concentration of acetone had to be controlled at the range of 83-85%. During the removing of the solvent, the temperature of the liquid should be controlled not to exceed 85癈. The crude extract was about 5-6% of the feces of silkworm.Two methods of manufecturing sodium copper chlorophyllin from the crude chlotlphyll were used. The crude extracts were saponified...

The feces of silkworm was found containing extracted chlorlphyll 0.8-1.0% and carotenoid about 0.15%.The feces of silkworm was extracted with acetone, the concentration of acetone had to be controlled at the range of 83-85%. During the removing of the solvent, the temperature of the liquid should be controlled not to exceed 85癈. The crude extract was about 5-6% of the feces of silkworm.Two methods of manufecturing sodium copper chlorophyllin from the crude chlotlphyll were used. The crude extracts were saponified and then extracted with gasoline to remove the nonsaponifiable fraction. The soap was acidified to pH 3 and the copper chlorophyllic acid was obtained by treating it with copper sulfate , then filtered. The residue was dissloved in acetone and convererted into alkali salt by treating with sodium hydroxide. The product, when dry,is known as sodium copper chlorophyllin . Another method was to treat with copper sulfate after saponification.Sodium copper chlorophyllin can be used as medicine for gastric uloer, burna, chronic persistent hepatitis and peplic ulcer.The nonsaponif iable fraction was found containing phytol, triac-ontanol and carotenoid. The phytol can be used as an intermediate for the manufacture of vitamine E and K1;the triacbntanol is a plant growth regulator and can increase the rice yield by spraying on the leaves.

蚕粪是提取叶绿素的良好原料,含量达1%(干物)。用丙酮抽提后回收溶剂可得到糊状叶绿素,得率约5%。加碱皂化后,在酸性条件下与硫酸铜作用生成叶绿素铜酸,再与氢氧化钠反应成为叶绿素铜酸钠盐。可用于治疗慢性、迁延性肝炎,胃、十二指肠溃疡及外用;又可作食用色素。 蚕粪还可提取类葫萝卜素,植物醇和正十三烷醇。植物醇供作合成维生素E及K_1的原料,正三十烷醇是植物生长刺激素,能促进水稻秧苗及白菜的生长。

In 1978, we collected more than 200 soil samples from the Pearl River Delta and made an analysis of the nutrient contents of each of the samples. Through calculation by stcpwise regression, we have found that there exist relationships between soil fertility and soil nutrient contents, between the rice yield per year and the contents of soil nutrients and between soil nutirent contents themselves.

1978年对珠江三角洲20O多个土壤的养分含量进行了测定,现采用逐步回归法计算了各养分含量的相关性,土壤肥力与养分含量的相关性,常年产量与养分含量的相关性.

In Mei Xian County of Guandong Province, one type of Chi-Ku disease of the rice plant was observed by local farmers for many years, but its causes had not been precisely identified. The disease was considered to be caused by the acidity of paddy soil and deficiency of nitrogen.Hence, when there was an occurrence of disease in the rice plant,the farmers applied much nitrogen fertilizer and lime to the soil. Subsequently, the severity of disease was observed, and the rice yield decreased or sometimes had...

In Mei Xian County of Guandong Province, one type of Chi-Ku disease of the rice plant was observed by local farmers for many years, but its causes had not been precisely identified. The disease was considered to be caused by the acidity of paddy soil and deficiency of nitrogen.Hence, when there was an occurrence of disease in the rice plant,the farmers applied much nitrogen fertilizer and lime to the soil. Subsequently, the severity of disease was observed, and the rice yield decreased or sometimes had nothing but straw harvested. Soil and plant samples were collected from the diseased paddy field for chemical analysis and a pot experiment was conducted to clarify the inducing facters of disease. The results of the present study are indicated as follows: 1 . The soil and the rice plant were severely deficient in potassium.2. The K2O/N ratio of the leaf blade in the affected plant fell below 0.42 and the ratio of soluble-N to protein-N was above 8.0%,yet in the healthy rice plant,the K2O/N ratio was above 0.50 and the ratio of soluble-N to protein-n fell below 7.1%. The K2O/N ratio and protein-N content of the leaf blade can be increased but soluble-N content can be decreased by application of the potassium. Therefore, the disease in the rice plant can be prevented by application of potassium, and yields of rice may increase.3 . The K2O/N ratio in the rice plant was greatly affecte by the ratio of available potassium to nitrogen in the soil, and the rice yields were closely related to the K2O/N ratio in the rice plant at the active tillering stage.4.On the basis of our observation, the symptoms of this disease have some differences from the several types of Akagare and Chi-Ku disease which had been reported by many workers in Japan and China respectively.The main difference was that the midrids and side-vein near the tip of the leaf blade of the affected plant at first turned dark brown, then tiny brown spots spread to the mesophyll between the veins. Finally, the mesophyll, as mentioned above turned light yellow or greyish white, but the veins still remained dark brown, as a result, it can be seen that the diseased leaf blade appeared with streaks of brown altematng with yellow(or white). In order to distinguish this type of Chi-Ku disease from the several types of Akagare and Chi-Ku disease, it is called a Streaked Type Chi-Ku disease.5.Under the microscope observation, it was revealed that the brown materials were only produced in the mesophyill of the diseased leaf, and the bundle, vascular bundle sheath and bulliform cells had not changed in colours.

条纹型水稻赤枯病在广东梅县已发生多年,一直被误认为是土壤反酸和缺少氮肥所致,因而采取施用石灰和大量化学氮肥,结果反使病情加重,产量下降,有时甚至失收。为查明该病发生之原因及对其发病的特征进一步观察,作者对发病土壤和稻株进行了化学分析,并取土进行了盆栽试验。研究结果表明:(1)发病土壤和植株严重缺钾。(2)凡发病的植株,其叶片(顶叶往下第3片叶)的K_2O/N值在0.42以下,可溶性氮与蛋白氮之比率在0.8%以上,而正常植株的叶片K_2O/N值则在0.5以上,可溶性氮与蛋白氮之比率在7.1%以下。施钾能提高叶片的K_2O/N值及蛋白氮含量,降低可溶性氮含量,对于防治该病及水稻的增产均具有显著的效果。(3)稻株的K_2O/N值受土壤速效钾、氮比值的支配,两者呈显著的二次曲线相关。而水稻产量则与分蘖盛期植株的K_2O/N值关系密切,植株K_2O/N值过低或过高,都不能获得最高产量。(4)本研究发现的赤枯病,与目前文献报道的几种类型水稻赤枯病在一些症状上有较大的差异。而主要区别在于这种病害的发生,首先是叶尖的中脉与侧脉先后变成黑褐色,然后在变色的叶脉两侧出现褐棕色的针尖状小斑点。最后叶脉间的叶肉组织变成淡黄(或灰白)...

条纹型水稻赤枯病在广东梅县已发生多年,一直被误认为是土壤反酸和缺少氮肥所致,因而采取施用石灰和大量化学氮肥,结果反使病情加重,产量下降,有时甚至失收。为查明该病发生之原因及对其发病的特征进一步观察,作者对发病土壤和稻株进行了化学分析,并取土进行了盆栽试验。研究结果表明:(1)发病土壤和植株严重缺钾。(2)凡发病的植株,其叶片(顶叶往下第3片叶)的K_2O/N值在0.42以下,可溶性氮与蛋白氮之比率在0.8%以上,而正常植株的叶片K_2O/N值则在0.5以上,可溶性氮与蛋白氮之比率在7.1%以下。施钾能提高叶片的K_2O/N值及蛋白氮含量,降低可溶性氮含量,对于防治该病及水稻的增产均具有显著的效果。(3)稻株的K_2O/N值受土壤速效钾、氮比值的支配,两者呈显著的二次曲线相关。而水稻产量则与分蘖盛期植株的K_2O/N值关系密切,植株K_2O/N值过低或过高,都不能获得最高产量。(4)本研究发现的赤枯病,与目前文献报道的几种类型水稻赤枯病在一些症状上有较大的差异。而主要区别在于这种病害的发生,首先是叶尖的中脉与侧脉先后变成黑褐色,然后在变色的叶脉两侧出现褐棕色的针尖状小斑点。最后叶脉间的叶肉组织变成淡黄(或灰白)色,而叶脉保持褐色,结果使发病叶片呈褐黄(或白)相间的条纹状。为区别于其它类型赤枯病,拟称

 
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