田间的

Student need master theory andtechnique of botany, plant taxology, plant physiology, plant ecology, agrology, plant nutrition and fertilizer, agriculture aerography, forage and feed breeding, livestock thremmatology, statistics and so on.

在此基础上，尚需掌握植物学、植物分类学、植物生理学、植物生态学、土壤学、植物营养与肥料学、农业气象学、杂草与病虫害防治学、牧草饲料作物遗传育种学、家畜饲养学、田间试验设计与数理统计分析等学科的理论和技术。

This study detected rapidly WTGs infecting oriental tobacco, and weeds such as Ageratum, malvastrum and bean surrounding the oriental tobacco field, and vector–transmitted WTGs by PCR .

本研究利用PCR技术快速检测香料烟植株及田间其它植物如胜红蓟、赛葵及菜豆等、以及病毒介体的带毒情况。

The study was conducted to investigate the dynamic changes in production of Sclerotinia sclerotiorum apothecium in the field of spring oilseed rape in the northeast part of China .

为明确寒地春油菜菌核病菌子囊盘的田间消长规律，采用棋盘取样法对黑龙江省西北部春油菜种植区进行了调查。

This paper studied the effect of soil water content on barley at different growth stages,through the study,we found the sensitive stages of barley to water and salt is the stem elongation and spike formation stages.

论文采用田间试验，通过研究不同生育期土壤含水量对大麦生长的影响，确定排降指标。

Through field test studied on reclaimed water irrigating affected to soil salification and basification.

选择北京市大兴区北野厂灌区内3个典型区域作为研究对象，通过田间试验研究了再生水灌溉对土壤盐碱性的影响。

The farmer can work alone in the field or the woods all day, hoeing or chopping, and not feel lonesome, because he is employed; but when he comes home at night he cannot sit down in a room alone, at the mercy of his thoughts, but must be where he can :see the folks,: and recreate, and, as he thinks, remunerate himself for his day's solitude; and hence he wonders how the student can sit alone in the house all night and most of the day without ennui and :the blues:; but he does not realize that the student, though in the house, is still at work in his field, and chopping in his woods, as the farmer in his, and in turn seeks the same recreation and society that the latter does, though it may be a more condensed form of it.

农民能在田间整天的劳作，除草或者耕作，不会感到孤独，因为他专心于工作。但是日落而归后他不能忍受独守空房，任由思想支配，但是他必须到能看到他伙伴的地方，调整疲惫的身体，就如他所想的回补白天的孤独；由此他想知道那些学生如何能整晚的坐在房间里，不知疲倦和抑郁。其实是他没有意识到那些学生即使在房间也在他的田间工作，就如农民一样，他也在寻找同样的快乐和同伴，只是他的形式更简单罢了。

Comparing the infection rate of Kummtroma striata under monoculture condition, the AMF colonization both in two-species coexisting of (Digitaria dHaris + Kumtneroivia striata) and (Kummeronxa striata + Ixeris denticulate) showed no significant change. But the AMF colonization rate Kiaameroma striata in three-species coexisting of Digtaria ciUaris + Kummerowia striata + Ixeris dentiatlata was significant higher than that in monoculture.

3田间栽培试验条件中植物物种互作对其菌根形成的影响研究表明，在田间栽培条件下，植物群落的物种多样性及群落内物种间的相互作用对不同物种的A州田侵染率和侵染强度的影响是有区别的，并不是所有的情形下所有的物种组合都有益于人MF的俊染。

During using anaerobic fermentation slurry as insecticide, there had many problems that are random using, non-strictly prevention and curing time, non-suitable temperature and consistency mixture ratio ctc. In this research, fristly the different mixtures are made according to the different ratio of slurry to additive. Then the insecticidal effects of the mixture are tested in different conditions so as to find the good matches of slurry and additive in laboratory. According to the up result of the good matches extents of mixture, the field experiment is made to test the mixture's insecticidal chraricter and is further found new dosage form which has many good indexes such as good insecticidal effectiveness, little additive dosis ctc. So as to looking for the dosage form's synergism, the significant analysis is done and the characters of the dosages are tested which are ecological and environmental and the new types of dosage are determined. At last, for proving the dosage's field insecticidal potency, the wide field area experiments are done and four new style dosages are triturated which adapt ecological agriculture development. Aadditionally the effective period of the mixtures are tested when other experiments are done.

本文针对厌氧发酵液作为杀虫剂施用时，随用即配和无严格的增效剂种类、喷施时间及温度、浓度配比等现象，首先对各添加剂与厌氧发酵液配成的不同浓度的混和剂在不同条件下进行实验室测试，确定杀虫率高的浓度范围，进一步细化各混和剂浓度范围作田间试验，选出杀虫效果好，添加剂量少等各项指标都好的剂型并进行显著测定，确定出各剂型的增效情况；然后对选出的剂型进行生态和环保特性测定，以便确定新剂型，最后对选定剂型作大区试验来验证田间杀虫药效，最终研制出了4种适合生态农业发展的新型无污染药肥，并对选出的混合剂进行了有效期实验测定。

The leaf WUE of millet was increased when root cutting in seedling stage,and only the treatment of I2D of maize increased the leaf WUE; The biomass WUE of millet and maize were increased excepting the root cutting treatments of "TM" and "sl"; At the 80% field capacity, when the root was cutted more seriously and more later,the seed yield WUE of millet were dropped; While at the 50% field capacity, the seed yield WUE of millet was increased when the root cutting is moderate in prophase,and have no reduction of output or increase the production at the same time ,while the benefit of saving water didnt evidently at the later stage root cutting.

苗期伤根处理能够提高谷子叶片WUE，而玉米伤根后仅I2D处理的单叶WUE高于对照；除TM和sl处理外，伤根处理提高了谷子和玉米生物量WUE；在土壤含水量为80%田间持水量时，随着伤根程度的加剧和伤根时间的后移，谷子子粒产量WUE下降，伤根不利于谷子WUE的提高；而在50%田间持水量时，前期伤根量适度的处理在不减产甚至增产的情况下还有助于作物子粒产量WUE的提高，而后期伤根的节水效果并不明显。

Breeding of transgenic rice restorer line for multiple resistance against bacterial blight, striped stem borer and herbicide(1) Transgenic rice line Zhongguo91 (carrying cry1Ab and bar gene) and elite restorer line Hui773 were crossed, then backcross was carried out three times using Hui773 as recurrent parent and self-cross was carried out one time.

多抗性(抗白叶枯、螟虫、除草剂)转基因水稻恢复系的培育(1)将恢773与携有转cry1Ab和bar基因的水稻新品系中国91(cry1Ab)杂交，并以恢773作为轮回亲本，连续回交三代和自交一代，对各回交世代的单株进行cry1Ab和bar基因的PCR分析、田间抗虫性鉴定和除草剂Basta抗性鉴定，经过选择获得了转基因水稻恢复系T773-1，田间种植对螟虫及除草剂Basta表现很好的抗性。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。