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    Study on the dynamic effect of different agrotechnology on tilling and ears development of tiller for winter wheat
    不同农艺措施对冬小麦分蘖动态和成穗数影响的研究
    Relationship between mature spike number of highland barley and climatic factors
    高原春青稞株成穗数与气象条件关系
    3 With the reduce of density, the number and percentage of earbearing tillerincrease.
    3.随密度降低,分蘖成穗数和分蘖成穗率都提高。
    5:5 and 7:3 nitrogen application at the booting period (A3B2, A3B1) greatly improved the 1000-kernel weight and kernel number per ear, but the yield was not so high as that of A2B2 for their fewer spikes ;
    孕穗期追氮5:5(A_3B_2)与7:3(A_3B_1)后期千粒重与穗粒数明显提高,但因单位面积成穗数较少,因而,增产效果次于A_2B_2;
    The best treatment was W2N4.
    在本试验中,以拔节期、孕穗期灌2水与孕穗期追施氮肥处理组合(W2N4)的成穗数及叶面积指数最高。
    4. The best amount of N> P and K were 207.0 kg/hm2, 60.3kg/ hm2 and 112.5 kg / hm2, respectively. The quantity and kernel number of spike improved significantly, and the height and dry matter accumulation in wheat also increased significantly.
    4.氮、磷、钾的用量分别为207.0Kg/hm~2、60.3Kg/hm~2、112.5Kg/hm~2为最佳的肥料用量,其成穗数和穗粒数均显著提高,小麦株高及干物质累积量显著升高。
    5. The treatment of Zn> Mn> B significantly advanced the height, improved the population quantity, spike quantity and yield of wheat, the spike quantity was 649.5 ten thousand/hm2and 27.10% higher than CK. Yield was 7500 kg/hm2 and 11.1% higher thanCK
    5.Zn、Mn、B显著促进小麦株高,增加小麦群体数量,提高小麦的成穗数和产量,成穗数为649.50万/hm~2,比对照增加27.10%,产量为7500kg/hm~2,增产幅度为11.1%。
    The treatment of twice irrigations (at jointing stage plus grain filling stage)(W_2) with nitrogen application rate of 150 kg/hm~2 (N_1) significantly improved both population and LAI of Yumai 50, resulting in the highest spike number and grain yield.
    弱筋品种豫麦50以W_2N_1处理组合群体同化面积大,生育后期可保持较高的LAI,单位面积成穗数最高,最终产量最高,而以W_3N_0处理组合最差。 强筋品种豫麦34以W_2N_2处理组合的上述参数最优,W_1N_0处理组合的最差。
    Rate of spike of Different varieties had certain difference due to moisture menace, but the overall trend was that rate of spike were higher at irrigation than no irrigation, XN 580’rate of spike were most.
    由于水分胁迫,不同品种分蘖成穗率也有一定的差异,总的趋势是灌水处理的分蘖成穗率略高于非灌水处理,无论灌水与否西农580的成穗数率均为最大。 不同品种(系)小麦穗粒数之间也有明显的差异,以灌水条件下的西农794为最多。
    With SWS of 0.5 bar,the plant shortened,ear numbers reduced sign-ificantly and the yield suffered a decrease of 25.1% compared with that at0.3 bar.
    0.5bar 处理小麦拔节受抑,株高降低,分蘖成穗数显著减少,但穗粒数、千粒重与0.3bar 处理差异不大,小麦产量下降25.1%。
    The suitable proportinon of the number of fundamental seedling, stem in overwinter period, stem in jointing stage and ear at harvest was 1 : 5.7 : 6.5 : 3.4
    基本苗、越冬头数、起身期头数、成穗数的比例为1:5.7:6.5:3.4比较适宜。
    The number of seed-setting spikes per 100 plant combining doubling naturally with double manully was 289, increased 12.9% and 91.8%, compared with those doubling naturally and doubling manully, respectively.
    田间自然加倍和人工加倍相结合每百株成穗289个,比自然加倍成穗数高12.9%,比人工加倍成穗数高91.8%.
    The results showed that the optimum colony dynamics of spring wheat in the district varied with varities and averaged 5880 thousands theic seedling/hm ̄2 , 6850 thousands spikenumber/hm ̄2, 0. 55 LAI in tillering stage, 4. 2 LAI in jointing stage, 6.2 LAI in heading stage,3. 6 LAI in maturity stase.
    结果表明,春小麦的最适群体动态因品种而异,平均值为588万/hm ̄2,成穗数658万/hm ̄2,分蘖期、拔节期,抽穗期及成熟期的最适叶面积指数分别为0.55、4.2、6.2及3.6。
    Suitable population structure for higher yield and better economic benefit should be 4~5 million seedling/hm 2 with about 4 5 million ripe spike/hm 2 and grains per spike and weight per 1000 grains should be more than 40 and 39 grespectively.
    高产高效的合理群体结构为基本苗达到4000~5000千苗/hm2,成穗数达到4500千穗/hm2左右,穗粒数在40粒以上,千粒质量在39g以上。
    The relationship between varieties with different heading rate and root activity was studiedusing both mesh-bag cultivation and field trial.
    用网袋栽培和田间试验相结合的方法,比较研究了小麦不同分率成穗类型品种群体根系活性与成穗数的关系及不同类型品种干物质的分配规律。
    The percentage of earbearing tillers in the field, the number of grains per ear, thousand kernel weight and yield were 14.2%,16.8%,3.8% and 34.5% higher than those of uncovered drilling wheat respectively.
    田间成穗数、穗粒数和千粒重分别比露地条播小麦提高 14.2 %、16 .8%和 3.8% ,产量提高 34.5%。
    When P deficiency was not serious(olsen-P 6.6 mg/kg, P applied 30 kg/hm 2), the yield of ND 3291 was reduced significantly, which was due to the decrease of ear number .
    试验结果表明 ,缺磷较轻的条件下(Olsen P 6 .6mg kg,施磷P 30kg hm2 ) ,多穗型品种农大 32 91的产量显著减少 ,其原因是成穗数下降 ;
    In order to make the adequate effect of Si-Ca fertilizer on rice,made the large area demonstration experiment by applying Si-Ca fertilizer as base fertilizer by450~750kg /667m 2 .The result showed,Si-Ca fertilizer made percentage of effective tiller increase by23.3%,percentage of fruitful spike by0.7spikes,increased production by4.3%~18.1%,had a certain effect on improving disease resistant capability of rice.
    为充分发挥硅钙肥在水稻上的应用效果,进行了硅钙肥作基肥450~750kg/hm2的大面积示范试验。 结果表明,硅钙肥可使水稻有效分蘖率提高23.3%,平均单株成穗数增加0.7穗,增产4.3%~18.1%,对提高水稻的抗病能力也有一定作用。
    P deficiency significantly decreased ear forming rate of JM2,and the number of grains per ear and thousand-grain weight of CA9325.
    缺磷显著降低JM2的单株成穗数及CA932 5的穗粒数和千粒重。
    The results showed that with the increase of ion bundle dosage, rate of emergence, spike-bearing numbers per plant, grain numbers per spike and weight per thousand grains all trended to decrease, the decrease rate were not linear with the dosage. wheat seeds were more sensitive between 4×1017 N+.
    结果表明:随着剂量的增加,小麦的出苗率、单株成穗数、穗粒数、千粒重均呈现下降趋势,下降幅度为非直线型,剂量4×1017 N+.
 

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