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So the variety of L21 andLainong9217 should be planted in dry land of high yield,and the variety ofLainong8834 and YD27 in dry land of middle yield,and gaining high yieldand high efficiency.2 The researches on the flag leaf and root system senescence after anthesisand yield were studied in dry land wheat of high yield,the activity of super-oxide dismatase and catalase、and the soluble protein content、Cytokinincontent in wheat flag leaf and root system after anthesisand Cytokinincontent in grain decreased slowly,and the content ofmalondiadehydeand the Abscisic Acidcontent in wheat flagleaf and root system and the Abscisic Acidcontent in grain increasedslowly,meanwhile keep higher root vigor and the root vigor decreased slow-ly,the result would be benefit to delay the senescence and gain high yield.3 The effects of soil thickness on the senescence of flag leaf and root sys-tem、nitrogen distribution and utilization and water consumption law andyield in dry land wheat had been studied in soil column and field.

通过大田条件下旱地高产小麦耗水规律及产量变化的研究表明，4个品种耗水量、产量、水分生产率、籽粒产量中来自花后光合器官输送的比例及综合效益评判结果均以鲁麦21和莱农9217为高，而莱农8834和烟D27则与此相反，因而在旱地高产麦田应以种植鲁麦21和莱农9217为主，中产麦田以莱农8834和烟D27为主，以获得高产高效。2在旱地高产大田对鲁麦21与烟D27两品种花后旗叶、根系衰老及产量变化进行了研究，认为花后旗叶与根系SOD、CAT活性、可溶性蛋白质含量、i-PAs含量及籽粒iPAs含量降低缓慢，MDA含量、ABA含量及籽粒ABA含量增加缓慢，同时保持较高的根系活力且下降缓慢，有利于延缓衰老，形成高产。3土层厚度对旱地小麦花后衰老、氮素分配利用及产量的影响进行了研究，随土层厚度加深，根系活力、根系与旗叶SOD、CAT活性及可溶性蛋白质含量增加，MDA含量减少，土层愈薄，其根系与旗叶衰老愈快。

Fully raising rainfall use efficiency of farm-land is the basis of high efficient utilization to limited water in dry-land farming.

充分提高农田降水利用效率是旱地农业中有限水高效利用的基础。

Dry-land farming high efficient utilization comprehensive technical approaches

旱地农业；高效利用；技术途径

Based on the analysis of the experimental data obtained of north Ying-shan Mountain Range, the paper puts forth some approaches, with respect totillage, rotational cropping and fertilizers, in the improvement of rainfallwater utilization in dry-land farming.

本文是作者根据近年来在内蒙古乌兰察布盟北部(年降水量约300毫米左右)地区，通过加强田间管理、耕作施肥、种植绿肥压青等措施，有效地提高了对当地农业降水资源的利用率，并探讨了一些新的途径。

So it have great social and economy utilization. Because of this, the research on DSM become focus today.

正是这些原因，使得对电力需求侧管理的研究成为当前的热点。

The uptake and utilization of 15 N-urea in a dual-purpose rice strain 202 with grain-straw were studied.

应用~(15)N-尿素研究了谷秆两用水稻202对肥料氮素的吸收利用。

If in study phrase "brash my teeth" time, I induct the activity by the dumb show form, the movement which the performance cleans the teeth ask the baby to guess, through the body language's utilization, the nature silent stimulates baby's active interest, attracts baby's attention.

如在学习短语"brash my teeth"时，我以哑剧的形式导入活动，表演刷牙的动作请幼儿猜，通过肢体语言的运用，自然无声地激发起幼儿的活动兴趣，吸引幼儿的注意力。

Uniform reflective beam, this design can avoid duplicative reflection.Good mixed beams, high light utilization, less glare than other lights and excellent effect.

光线反射均匀，避免光线在灯具内重复反射，光源光线混合均匀，光源利用率高，无眩光，混光效果好。

Utilization of dwarfing resources and development of dwarfing genes study in wheat.

小麦矮源的利用和矮秆基因的研究进展。

In the end, two dynamic weight update based heuristics are introduced to achieve the efficient utilization of routing resources.

最后在布线算法中实现两种启发式策略以提高可布线资源有效利用率。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新