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叶施
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  leaf-application
     Following summer leaf-application 15N, the withdrawn 15N from fallen leaves shifted in trees in winter, and local withdrawn 15N remobilized in original organs during spring.
     以上结果表明 :夏季叶施15N后 ,在秋季叶片衰老脱落前 ,15N可由叶中回撤至树体内贮藏起来 ,且局部回流贮藏的氮素营养有局部利用的特点。
短句来源
  leaf application
     ABA root application did not affect the survival rates of wheat variety Kite and Banks, but decreased the rates of Karchyia and C-306, ABA leaf application reduced the rate of all four varieties.
     根施ABA对小麦品种Kite和Banks的复水成活率无影响,但降低Karchyia和C-306的复水成活率,叶施ABA降低所有4个品种的复水成活率。
短句来源
     After 7 days of withholding water, root and leaf application of ABA enhanced green leaf area and reduced chlorophyll contents in all four varietes.
     停水7d后,根施ABA和叶施ABA提高所有4个供试小麦品种的绿叶面积和降低所有品种的叶绿素含量。
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  “叶施”译为未确定词的双语例句
     0.6L/m2 Fe fertilizer increased the contents of proline, soluble carbohydrate and catalase by 25%, 310% and 180%, respectively; 0.4g/m2N + 0.6L/m2 Fe fertilizer increased the contents of proline, soluble carbohydrate and catalase by 41%, 182% and 160%, respectively and gave the best result for cold resistance of centipedegrass.
     秋冬季叶施Fe、N+Fe可提高草体内抗寒指标性物质的含量,叶施0.6L/m2 Fe或4g/m2 N + 0.6L/m2 Fe,可使草坪草体内脯氨酸、可溶性糖类含量及过氧化氢酶的活性分别提高25%、310%、180%和41%、182%、160%。
短句来源
     When supplying autumn with N of 4g/m2 and 0.61/m2 of Fe together, the green periods can be prolong.
     秋季叶施4g/m~2N+0.6l/m~2Fe使草坪的青绿期延长。
短句来源
     5. Suppying Fe, N+Fe at autumn can improve the content of matter correlated with cold tolerance. Fe Fertilizing with concentration of 0.61/m2 or fertilize with 4g/m2 of N + 0.61/m2 of Fe can improve contents of proline, soluble carbohydrate and catalase by 25%, 310%, 180% and by 41%, 182%, 160%.
     5.秋季叶施Fe、N+Fe可提高体内抗寒指标性物质的含量,叶施0.6l/m~2Fe或4g/m~2N+0.6l/m~2Fe,可使草坪草体内脯氨酸、可溶性糖类、过氧化氢酶的含量分别提声25%、310%、180%和41%、182%、160%。
短句来源
     Characteristics of Distribution of Different Types of Shoots Foliar ~(15)N-urea Sprays During Fruit Development Period in Winter Jujube Trees
     冬枣果实发育期不同类型枝条叶施~(15)N-尿素的分配特性
短句来源
     Supplying atsummer with Fe of 0.611/m2 can improving density, color, uniformity of turf.
     夏季叶施0.6l/m~2的Fe使草坪的密度、颜色、均一性提高;
短句来源
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  相似匹配句对
     Transpiration is basic same,WUE increases marked,N can decrease WUE N and P mixed can increasemarked leaf area.
     N、P混面积增加明显。
短句来源
     Transport and distribution of chromium absorbed by leaves in pumpkin
     南瓜对铬的吸收、转运和分配
短句来源
     3 Effects of different nitrogen applied level on nitrogen
     氮?
短句来源
     THE CLASSIFICATION OF LEAF BEETLES
     甲的分类
短句来源
     The Concentrate of leaf's Nutrient
     营养素浓缩物
短句来源
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  leaf-application
After leaf-application the influence of the length of R was less pronounced or even reversed.
      
  leaf application
However, trends in the data suggest increased infiltration with increasing leaf application rate.
      
Part 1: Effects of N, P, and leaf application on maize yields and soil properties
      
removed narrowed each season due to uniform leaf application.
      
The root inoculation in comparison to leaf application was found to confer greater benefits to the growing plant.
      
In the pot experiment, potassium and sodium fertilizers were compared in soil and leaf application.
      
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Residues of demeton on apples were studied by the cholinesterase activity inhibition method of Hestrin. Three treatments were conducted with a 50% demeton emulsifiable concentrate at a dilution of 1:1,000: (1) only the fruits on a branch were dipped in the insecticide solution; (2) branches with fruits and leaves were sprayed while the fruits were wrapped with plastic sheets; (3) a branch with fruits and leaves with the cut end set in the insecticide solution for twenty-four hours and then in water. After the...

Residues of demeton on apples were studied by the cholinesterase activity inhibition method of Hestrin. Three treatments were conducted with a 50% demeton emulsifiable concentrate at a dilution of 1:1,000: (1) only the fruits on a branch were dipped in the insecticide solution; (2) branches with fruits and leaves were sprayed while the fruits were wrapped with plastic sheets; (3) a branch with fruits and leaves with the cut end set in the insecticide solution for twenty-four hours and then in water. After the treatment the fruits were examined for demeton residues. A summary of the results is given as follows: (1) Fruits that were dipped in the demeton solution for 1 minute were found to retain a residue as high as 2 ppm and dropped to 0.75 p.p.m, after twenty-four hours. The residue gradually fell to zero within two weeks or so. (2) Within twelve days after the spraying of the leaves, residue on the fruits was not detectable. (3) Within twenty-four hours during which the branch was set in the insecticide solution, although the branch had absorbed much of the solution, no residue was detectable in the fruits. On the next day, a residue of 0.5 ppm was detected, and then it dropped to zero within ten days. It may be supposed that when demeton is applied by spraying, as generally the case, the residue may be chiefly due to the retainment of insecticide on the fruit surface, and the residue rapidly reduce below a tolerance of 0.75 ppm within a few days. The author suggests that the period between the latest application of the insecticide and the harvest time may be shortened to three or four weeks.

用Hestrin胆硷酯酶活性测定法,系統研究以不同方式施用内吸磷(E-1059)后,苹果内吸磷残留量的动态变化情况。施药方式有三种:(1) 浸果—仅对树上的苹果进行药浸,树叶和树枝不接触药液。(2) 噴叶—苹果以塑料膜包好后向树上嘖药,只树叶和枝上着药,而苹果不着药。(3) 浸枝——将带有果和叶的一段树枝剪下,断端浸入药液中迫使吸收药液24小时。检测結果:浸果施药后第一天内,苹果可检测出很高的内吸磷残留量(可达2 ppm左右),1天后残留量降到0.75 ppm以下,两周后残留量可降低到接近零;噴叶施药后12天内,經数次检测,均未发现有内吸磷残留;用药液浸枝,虽然第一天树枝吸收了不少的药液,但苹果中几乎检測不出内吸磷的残留,第二天换以水浸枝,却反而检测出内吸磷残留量(将及0.5 ppm),大約10天左右残留量降到接近零。試驗結果说明:一般噴雾时内吸磷的残留主要是由于药液直接接触苹果果皮所致,通过叶和枝内吸輸导至苹果上的药液是微乎其微的;浸果施药后第一天内残留量最高,以后逐漸降低,約两周后降到接近于零;浸枝时迫使吸入药液,但輸导至苹果上的药物甚少,并且内吸輸导需要一定时間,所以第二天残留量最高。关于苹...

用Hestrin胆硷酯酶活性测定法,系統研究以不同方式施用内吸磷(E-1059)后,苹果内吸磷残留量的动态变化情况。施药方式有三种:(1) 浸果—仅对树上的苹果进行药浸,树叶和树枝不接触药液。(2) 噴叶—苹果以塑料膜包好后向树上嘖药,只树叶和枝上着药,而苹果不着药。(3) 浸枝——将带有果和叶的一段树枝剪下,断端浸入药液中迫使吸收药液24小时。检测結果:浸果施药后第一天内,苹果可检测出很高的内吸磷残留量(可达2 ppm左右),1天后残留量降到0.75 ppm以下,两周后残留量可降低到接近零;噴叶施药后12天内,經数次检测,均未发现有内吸磷残留;用药液浸枝,虽然第一天树枝吸收了不少的药液,但苹果中几乎检測不出内吸磷的残留,第二天换以水浸枝,却反而检测出内吸磷残留量(将及0.5 ppm),大約10天左右残留量降到接近零。試驗結果说明:一般噴雾时内吸磷的残留主要是由于药液直接接触苹果果皮所致,通过叶和枝内吸輸导至苹果上的药液是微乎其微的;浸果施药后第一天内残留量最高,以后逐漸降低,約两周后降到接近于零;浸枝时迫使吸入药液,但輸导至苹果上的药物甚少,并且内吸輸导需要一定时間,所以第二天残留量最高。关于苹果施用内吸磷的期限,似乎可职适当后延至收获前3或4周。

Non-labelled urea, 15N-labelled urea and ethephon were applied on mature and potted young jujube trees ( Zizyphus jujuba Mill. ) by spray or foliar daub in winter in 1987 and 1988.We studied the effects of leaf nitrogen return to tree after the treatments, the positions and forms of nitrogen reserved, and reutilization of storage nitrogen in the next year.The results were as follows: l.The return of leaf nitrogen was accelerated by autumn foliar urea and ethephon applied, and then the level of storage nitrogen...

Non-labelled urea, 15N-labelled urea and ethephon were applied on mature and potted young jujube trees ( Zizyphus jujuba Mill. ) by spray or foliar daub in winter in 1987 and 1988.We studied the effects of leaf nitrogen return to tree after the treatments, the positions and forms of nitrogen reserved, and reutilization of storage nitrogen in the next year.The results were as follows: l.The return of leaf nitrogen was accelerated by autumn foliar urea and ethephon applied, and then the level of storage nitrogen of trees was increased.The results of urea plus 200ppm ethephon were the best. 2 . There were significant in-creases in the length of "zaodiao" ( a kind of bearing branchlet that falls in late autumn ) , fruit set, average single fruit weight, and the amount of reducing sugar of jujube fruits.Urea also increased the nitro-gen of shoots and leaves, but decreased the amount of sucrose of fruits. 3 . The above-ground organs and roots of jujube trees were of same importance in nitrogen reserved in winter. The main form of sto-rage nitrogen was protein-nitrogen, which amount was more than 2-3 fold than non-protein nitrogen ( soluble nitrogen ) .

枣树(Zizyphus jujuba Mill.)秋季叶施尿素、乙烯利及尿素十乙烯利均可促进叶片及落性枝的氮素向树体回流,增加树体贮藏氮素水平,尤以尿素+200ppm乙烯利的效果最佳;尿素及乙烯利处理均增加了次年枣吊长度、平均单果重及枣果还原糖含量;尿素处理还显著增加了叶片及新梢含氮量,座果数,但降低了枣果蔗糖含量。枣树秋冬季地上部与根系具有同等重要的贮藏氮素作用;蛋白态氮是主要贮藏形态,为非蛋白态氮的2—3倍。

15N-urea was foliar applied on bearing or young jujube tree (Zizyp-hus jujuba Mill.) in autumn of 1987.The effects of leaf-nitrogen retrans-location in the trees,positions of the N stored,forms of reserved N,and reutilization of storage N in the next year were studied.The results were as follows:15N returned and stored in all parts of the tree following foliar application of 15N-urea.Root could use the nitrogen not only absorbed from soil but also transported from leaves.The above-ground organs and roots of...

15N-urea was foliar applied on bearing or young jujube tree (Zizyp-hus jujuba Mill.) in autumn of 1987.The effects of leaf-nitrogen retrans-location in the trees,positions of the N stored,forms of reserved N,and reutilization of storage N in the next year were studied.The results were as follows:15N returned and stored in all parts of the tree following foliar application of 15N-urea.Root could use the nitrogen not only absorbed from soil but also transported from leaves.The above-ground organs and roots of jujube tree played the same important roles on nitogen storage in winter.The main forms of storage nitrogen were protein-N,which was 2-3 fold more than non-protein-N.The storage nitrogen existed in above-ground parts was used first in early spring,and that returned from leaves last year could be prior used for the developments of leaves,branchlets and infloresences.The relative distribution of nitrogen in floresence was more in bearing tree than in young tree.In the next year,15N was redistributed in branchlets,leaves,flowers,young fruits and perennial spurs of the trees treated with 15N-urea on leaves of some perennial spurs in autumn.The 15N transported out of the treated spurs reappeared in next spring and further transported to neighboring spurs.The local storage N was prior used for growth.There was 21.49% of fertilizer-N stored in the young jujube trees when treated foliarly with urea in autumn of 1987.After one years's use,there was still 18.91% of fertilizer-N existed in the trees,which indicated a characteristic of circulatory utilization of nitrogen for a long period and the reutilized nitrogen was mainly from jujube leaves and deciduous branchlets.

金丝小枣秋季叶施~(15)N-尿素后,研究了氮素在其体内的贮藏部位、形态及循环利用情况。结果表明,幼树秋季叶弛的~(15)N可以输送到树体的各器官,地上部和根系在贮藏氮素上有同等重要的作用,根系可以利用来自叶片的氮供其生长。枣树春季生长先利用地上部贮藏的氮,而叶片回流的氮则优先用于梢、叶、花的形成。成年树分配到花的氮的比例较幼树大。秋季在成年树枣股叶片施用~(15)N-尿素,次年该枣股中的`(15)N量高于其上、下邻近枣股,表现局部贮藏局部优先利用的特点。氮素有较长时期重复利用的效应,重复利用的氮主要来自叶片。

 
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