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早秋2013
首页 > 医学论文 > 脐腐病论文提纲

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你在网上找不到啊?怎么我又找得到,给你一篇,谁叫我们80后的是教育事业的牺牲品~~!论文摘要 介绍了塑料大棚春提早番茄高产栽培技术,包括品种选择、培育适龄壮苗、定植、开花结果期管理、病虫害防治及采收等方面内容,以期为果农从事塑料大棚春提早番茄生产提供参考。塑料大棚春提早番茄高产栽培就是在温室内育苗、大棚内定植、5~6月供应市场的一种高效栽培模式,主要在温室番茄的供应后期,露地番茄大量上市前这一段时间内供应市场。现把其栽培技术总结如下。1品种选择选择耐低温、耐弱光、抗病、质优高产的早熟番茄品种,如金粉佳冠、金棚一号、美迪、华种5号、赛棚4号等。2培育适龄壮苗苗床准备与营养土配制按畦面宽~,走道宽30cm,畦埂高出畦面20cm以上作畦,并按100W/m2的功率铺地热线加温,在电热线上摆营养钵(规格为10cm×10cm)或铺营养土(播种床8~10cm厚,分苗床10~12cm厚)。营养土按肥沃园土∶腐熟厩肥=2∶1的体积比配制,1m3中加入充分腐熟的鸡粪20~30kg、过磷酸钙1~2kg、苗木灰4~5kg、40%拌种灵200g,充分拌匀。种子处理播种前晒种2~3d,用55℃热水烫种,不断搅拌10min后,移入25~30℃的清水中浸泡6~8h,然后在25~30℃下催芽,待70%的种子露白时即可播种。播种播种前将苗床上的营养钵或育苗畦浇透水,水渗下后,取拌好的药土撒在营养钵或育苗畦上,把催好芽的种子均匀撒于育苗畦或营养钵(每钵播种2~3粒),用种量750g/hm2。播种后覆1cm左右的药土,加盖地膜,扎扣小拱棚,保持地温25~28℃。苗期管理从播种到出苗,闭棚保温,保持白天25~30℃,夜间18~20℃;在有70%的幼苗出土后,及时揭开地膜降湿并让幼苗见光以使幼苗粗壮,避免徒长苗;秧苗出齐后4~5d内,保持白天20~25℃,夜间12~15℃,以后白天23~28℃,夜间13~18℃。早揭晚盖并清扫薄膜上的草屑和尘土,以延长光照时间和提高光照强度。若发现覆土过薄出现顶壳或床土过湿,可再覆1层细土;若床土过干,用细孔喷壶适量浇水。对于利用育苗畦育苗的苗床,当幼苗2叶1心、苗龄30d左右即可进行分苗,按10cm×10cm的株行距移苗或移入10cm×10cm的营养钵中。分苗前分次选晴朗无风的中午进行间苗,第1次在子叶展开时,第2次在破心后长出2片真叶时。分苗前5~7d低温炼苗,保持白天18~20℃,夜间10~12℃;分苗后7d内应提高床温,保持白天25~28℃,夜间15~18℃;缓苗后应适当通风降温,保持白天20~25℃,夜间12~15℃,利于花芽分化;定植前的7~10d,对幼苗进行由小到大的通风,保持白天15~20℃,夜间8~12℃,增强幼苗的抵抗能力。小苗期间尽量少浇水或不浇水,分苗后在幼苗4~5片叶前不能缺水,可适当控水,定植前7~10d控水。3定植3月上旬定植,双膜覆盖可提早到2月下旬定植。定植前施有机肥75~90t/hm2、过磷酸钙750kg/hm2、尿素450 kg/hm2、硫酸钾300kg/hm2,施后深翻耙细整平。在番茄苗定植前15d左右把大棚薄膜盖好,闭棚提温,当棚内温度稳定在10℃以上后,在晴天上午按行株距50cm×25cm(垄宽与走道宽均为50cm,垄面平铺地膜)打孔定植,每垄栽2行番茄,栽植万株/hm2左右。定植时注意把番茄花序朝向走道一侧,定植深度与土块相平,定植后及时加盖小拱棚膜,而后密闭4~5d,使温度白天维持在30℃左右,夜间20℃左右,中耕松土,提高地温。白天太阳出来后及时揭草帘,增强光照。4开花结果期管理定植缓苗后逐渐加大通风量,使棚内温度白天20~25℃,夜间15~18℃,空气湿度60%左右。采取单干整枝,其余侧枝全部去除,留3穗果打顶,每穗果留4个。花期用40~50mg/kg的番茄灵或10~20mg/kg的2,4-D蘸花以保花保果(蘸花时在药液中加红墨水做标记)。结果后防止植株早衰,可对新长出的侧枝适当保留1~2片叶摘心。第1穗果坐住后,及时插架绑秧,结合整枝绑蔓摘除下部老叶、病叶。定植缓苗后要控制浇水,第1花序坐果后浇第1水,以后要小水勤浇(尽量膜下暗浇),始终保持地面湿润,不要大水漫灌。浇水应选择晴天上午,浇时应浇透。浇水后闭棚提温,次日上午和中午及时通风排湿。第1次浇水时,随水冲施1次速效肥(尿素150~225kg/hm2、磷酸二氢钾150kg/hm2)。第1穗果白熟时再冲施1次速效氮肥(尿素~ kg/hm2)。结果期间还应加强叶面追肥,可喷洒1 000倍磷酸二氢钾肥液。盛果期外界湿度逐渐升高,应加强通风,但不能过猛,以防闪苗。5月中旬左右,外界温度稳定在15℃以上时即可撤棚。5病虫害防治病害防治①立枯病、猝倒病(苗期病害):发现病苗及时拔除,并喷施75%百菌清可湿性粉剂600~800倍液。②番茄脐腐病:田间水分管理要均衡,用1%过磷酸钙水溶液叶片喷雾,10~15d喷1次,共喷2次。③病毒病:播种前对种子消毒,田间管理时要及早杀灭蚜虫并及时拔除病株。④灰霉病:降低土壤湿度,及时用速克灵烟熏剂下午熏棚。⑤早、晚疫病:加强通风透光,降低空气湿度,及时用45%百菌清烟雾剂3 750g/hm2熏棚。虫害防治蚜虫、白粉虱:用黄板诱杀,将涂有机油的黄色板置于棚室内高出植株的地方。烟雾剂熏蒸,每次用量6 000~7 500 g/hm2,分成4~5堆,暗火点燃,闭棚熏烟3h。6采收为争取适时上市,在果实进入白熟期时可选用40%乙烯利400倍液,涂抹番茄果,4d后果实可大量变红。

276 评论

松子红枣茶

2009年广东高考英语满分作文 Should tourists take photos with animals? Koalas in wildlife parks can‘t fall asleep because tourists keep disturbing them. The movement is thinking to make the tourists’ behaviour illegal to protect the animals. When people are visiting wildlife parks, they like to take photographs with animals. Reasons for this are varied. Some people may think taking photos with animals are funny in contrast with taking photos with other persons. Others may think that it will be an interesting experience to take photos with animals during their visit. If I were an animal in the wildlife park, I would feel annoyed when people keep photographing with me. My life would be greatly influenced and I wouldn‘t feel happy at all! I think I should have some private space and time to relax myself. However, I don‘t agree if it is announced illegal to take photos with animals. Tourists pay for tickets to visit the wildlife park and it will be a pity for them if they can’t have a photo with an animal. Perhaps wildlife parks can set some special time, during which tourists can take photos with animals. It can both satisfy tourists and protect the animals. 2009年的年广东高考英语满分作文 游客应该给动物拍照吗? 考拉在野生动物公园不能入睡,因为他们令人不安的游客不断。不结盟运动思想,使游客的非法行为,以保护动物。 当人们正在访问的野生动物公园,他们喜欢与动物拍照留念。原因是多种多样的。一些人可能认为拍照与动物的有趣的对比拍照与其他人。其他人可能认为,这将是一个有趣的经验,与动物拍照访问期间。 如果我是一种动物的野生动物园,我会感到恼火的人不断拍照时,与我。我的生活将得到极大的影响,我不会感到高兴了!我想我应该有一些私人的空间和时间来放松消遣。 但是,我不同意,如果它是非法宣布采取与动物的照片。游客支付门票参观野生动物园,将是很可惜的,如果他们不能的照片,一种动物。也许野生动物公园可以设置一些特殊的时间,在此期间,游客可以与动物的照片。它既能满足游客和保护动物。

301 评论

绿萝丝藤

最近,你校同学正在参加某英文报组织的一场讨论。讨论的主题是:公园要不要收门票?请你根据下表所提供的信息,给报社写一封信,客观地介绍讨论情况。 60%的同学认为 40%的同学认为 1.不应该收门票 2公园是公众休闲的地方 3l如收门票,需建大门、围墙,会影响城市形象 1.应收门票,但票价不要太高 2.支付园林工人工资 3.购新花木 注意:1.信的开头已为你写好。 2.词数:100左右。 3.参考词汇:门票---entrance fee Dear Editor. I’m writing to tell you about the discussion we havehad about whether an entrance fee should be charged for parks.高考满分作文1(1号题) Dear editor, I’m writing to tell you about the discussion we have had about whether an entrance fee should be charged for parks. 60% of us schoolmates think that an entrance fee do not meet people’s expectations, for a park is considered to be a place where the public can have a good time when they are not busy either at home or at work. If an entrance fee must be paid by the visitors for a park, it will be necessary to build a gate and surrounding walls. In the end a city will take on a bad look. 40% of us schoolmates think that an entrance fee can be accepted, but it must not be too expensive. The money from ticket selling can be used for paying the gardeners in the park and buying some other kinds of flowers and trees. With regard to myself, I think an entrance fee is useful, for it can be used to protect a park. Do we share the same opinion, dear editor? Yours truly, Li Hua 亲爱的编辑, 我写信告诉我们曾经对是否收门票的公园,应收取讨论你。我们60%的同学认为,入场费没有达到人们的预期,有一个公园被认为是一个地方,市民可以在家里或工作的一个很好的时候,他们不也忙。如果收门票必须由一个公园的旅客支付的,有必要建立一个大门和围墙。在最后一个城市将在一个坏看看。我们40%的同学认为,入场费可以接受,但不能过于昂贵。从门票销售的钱可用于支付公园的园丁,购买鲜花和一些其他种类的树木。 至于我自己,我觉得入场费是有用的,因为它可以用来保护公园。我们是否有同感,亲爱的编辑? 此致 李华高考满分作文2(1号题) Dear editor, I’m writing to tell you about the discussion we have had about whether an entrance fee should be charged for parks. Sixty students out of one hundred think that an entrance fee should not be bought before one enters a park, for it is a place for the public to go to when they are free. If a ticket must be bought, a gate and walls have to be built for a park, which will make a city look ugly. Forty students out of one hundred think that an entrance fee should be bought before one enters a park, but that the price of the ticket should be reasonable. Money that is got from ticket selling can be used to pay the gardening workers and buy different kinds of flowers and trees. As for myself, I really think parks are good places to go to at weekends and on holidays. At the same time, we, as visitors, should pay the entrance fee when we enter a park. After all, it takes a lot of money to maintain a park in good working order. Do you agree with me, dear editor? Yours truly, Li Hua 亲爱的编辑, 我写信告诉我们曾经对是否收门票的公园,应收取讨论你。 60出100学生认为,收门票,不应该购买前一进入公园,因为它是一个公共场所去时,都是免费的。如果要购买机票,大门和墙壁都必须有一个公园,这将使城市建成很丑陋。四十出100学生认为,收门票,应以前购买的一进入公园,但门票的价格应该是合理的。钱,是从售票获得可用于支付园艺工人和购买鲜花和各种树木。至于我自己,我真的觉得公园的好地方到周末和节假日。同时,我们作为游客,应支付入会费,当我们进入公园。毕竟,它需要很多钱,以保持良好的工作秩序公园。你是否同意我的,亲爱的编辑器? 李华考满分作文3(1号题) Dear editor, I’m writing to tell you about the discussion we have had about whether an entrance fee should be charged for parks. Sixty percent of my schoolmates are for the idea that an entrance fee should not be forced on the public. They believe parks are the place where the public enjoy themselves at their leisure. They think that a gate and wails are to be built if an entrance fee is to be charged. The city will not look so beautiful as it should have. Forty percent of my schoolmates are for the idea that an entrance fee is OK, but it shouldn’t be out of control. Entrance fee can be used to pay the gardeners and buy new types of flowers and trees. For myself, I’d like to say that if we all work hard to build our city into a flower garden, who cares about the entrance fee for parks? Yours truly, Li Hua 亲爱的编辑, 我写信告诉我们曾经对是否收门票的公园,应收取讨论你。我的同学,60的占百分之认为入场费不应该强迫公众的想法。他们认为,公园的地方,市民享受闲暇自己。他们认为,一门和哀号的兴建,如果收门票,收费。这座城市将不再那么美丽,因为它应该有。四十我的同学占百分之的思想,入场费是行,但不应该失去控制。入会费可以用来支付园丁和购买花木新类型。至于我自己,我想说,如果我们大家努力建设成为一个花园,谁对公园门票为关心我们的城市? 李华高考满分作文4(1号题) Dear editor, I’m writing to tell you about the discussion we have had about whether an entrance fee should be charged for parks. Those against charging entrance fee for parks take up 60%. They are of one mind that parks are a place for the public’s enjoyment. If tickets are demanded on the visitors of a park, a gate has to be set up and so have the walls on the four sides. If so, city will not look as beautiful as it would. Otherwise, those in favour of charging entrance fee for parks take up 40%. They all think that ticket price should be controlled properly, and that entrance fee can be used to pay the gardeners and buy new sorts of flowers and trees. The truth lies in the hands of the majority. Does my argument stand to reason, dear editor? Yours truly, Li Hua 亲爱的编辑, 我写信告诉我们曾经对是否收门票的公园,应收取讨论你。反对的收费公园占60%的门票。他们是一记,公园是供公众享用。如果优惠票公园的游客要求,一门要设立等,对四周的墙壁。如果是这样,上海将不看的,因为它美丽会。否则,那些在收取公园占40%的门票赞成票。他们都认为,门票价格应适当控制,而且入学金可用于支付园丁和购买花木新的类型。真理掌握在多数人的手中。我的论点是否立场,因此,亲爱的编辑器?高考满分作文5(1号题) Dear editor, I’m writing to tell you about the discussion we have had about whether an entrance fee should be charged for parks. Of all us who have joined in the discussion, 60% share the point of view that an entrance fee should not be charged while 40% share the opposite view. Those who don’t agree with the idea think that a park is a place where the public can spend their spare time for pleasure. Those in support of the idea think that entrance fee for parks can’t be beyond control. Those against the idea think that a city’s appearance will be damaged because a gate and wails will be built if an entrance fee is to be collected. Those who agree with the idea think entrance fee can be used to pay the gardeners and buy new kinds of flowers and trees. I think it does more good than harm to charge an entrance fee for parks. Am I right, editor? Yours truly, Li Hua亲爱的编辑, 我写信告诉我们曾经对是否收门票的公园,应收取讨论你。在所有我们谁也参加了讨论,60%的份额的观点,即入场费不应该收取点,而40%的市场份额持相反意见。那些谁不同意这样的看法认为,公园是一个地方,公众可以用他们的乐趣业余时间。在这个想法的支持,对那些认为公园门票不能失去控制。反对的人士则认为,一个城市的面貌将受到损害,因为门和哭声将建立门票如果要收集。那些谁的想法一致认为入会费可以用来支付园丁和购买花木新品种。我认为它利大于弊收取一个公园入场费。我说得对,编辑器? 此致 李华这应该很容易看懂呀,用得着翻译么 【全国卷I海南、宁夏】 【试题回放】假定你是李华,正在英国接受英语培训,住在一户英国人家里。今天你的房东Mrs. Wilson 不在家,你准备外出,请给Mrs. Wilson 写一留言条,内容包括: 1.外出购物 2.替房东还书 3.Tracy 来电话留言:1)咖啡屋(Bolton Coffee)见面取消 2)此事已告知Susan 3) 尽快回电 注意:1. 词数100左右; 2.可以适当增加细节,以使行文连贯。 Mrs. Wilson, I’m going out shopping, and won’t be back until about 5:00 pm. I have taken with me the two books you asked me to return to the City Library. At about 1 o’clock this afternoon, Tracy called, saying that she couldn’t meet you at Bolton Coffee tomorrow morning as she has something important to attend to. She felt very sorry about that, but said that you could set some other time for the meeting. She wanted you to call her back as soon as you are home. She has already told Susan about this change. Yours, Li Hua 威尔逊夫人, 我要出去购物,也不会下午5时00分左右才回来。我已与我的两本书,你要我回到市图书馆。下午约1时许下午,保罗称,说她不能满足博尔顿咖啡明天上午你,因为她参加一些重要的事情来。她觉得很遗憾,但他说,你可以设置一些会议的其他时间。她想你叫她尽快回来你的家。她已经把这件事告诉转变苏珊。 你的, 李华[名师点评] 本文属于提纲式要点作文,是学生比较熟悉的题材,体现了英语学习应该注意实用性,生活型的原则。行文人称、时态运用恰当、准确,各个要点间逻辑连贯,行文通顺。提纲类书面表达不是简单的逐条翻译,而是将所给的几个要点合理的组成比较通顺的语句,因此要仔细组织语言,合理安排结构。在语言方面,要特别注意简洁明了,开头要开门见山。Computer As we all know, the computer is a marvelous machine. It has all kinds of types. Nowadays most computers have a memory processor in which information can be stored and be taken out at any time. The oldest kind of computer is the abacus. It was used in China long agoi The first modern computer was very large and expensive, but now scientists already have been making computers smaller and cheaper, at the same time easier to use and work faster and faster now. Computers can be used a great deal in many ways. It can do many kinds of work. They can be used in doing business and science research work, in some large factories, and our daily life. We even use it to play computer games at home. Today a lot of people buy computers. Computers is becoming more and more popular indeed. 计算机 众所周知,计算机是神奇的机器。它有各种类型。现在多数计算机均有存储器,信息可以随时被存储或提取。 最古老的计算机是算盘。算盘很久以前在中国使用。第一台现代计算机非常庞大和昂贵,现在科学家们已经使计算机变得更小和更廉价,同时更易于使用,并且运行速度越来越快。 计算机可以充分用于很多方面。它可以做很多事。它们可用于商业,科学研究,大工厂及我们日常生活。我们甚至用它在家玩电脑游戏。现在很多人购买电脑,计算机变得越来越普及 以上翻译是用谷歌翻译的,有些语句错误,很容易看明白,还需要你自己校核一下

302 评论

和平海棠

呵呵~!还真问对人了,证好我是学园艺的,你也是今年毕业的吧,下面这个是我前两个月写的南宁温室大棚番茄高产栽培技术论文摘要 介绍了南宁温室大棚番茄高产栽培技术,包括品种选择、培育适龄壮苗、定植、开花结果期管理、病虫害防治及采收等方面内容,以期为果农从事温室大棚番茄生产提供技术参考。关键词 南宁; 温室大棚;番茄;高产栽培。前言:番茄是国内外普遍种植的一种蔬菜之一,是人们日常餐桌上食品,随着人们对番茄的不断认识,在药用、调料、补品方面的不断开发,使其在市场上的需求量不断增加,我国的播种面积在逐渐扩大,使得各地区的播种技术在实践中不断地提高与完善。番茄对温度的要求:番茄喜温,白天适宜的温度为25℃~28℃,夜间16℃~18℃。低于15℃,番茄种子发芽、授粉受精及番茄转红受到影响:低于10℃,生长缓慢,生殖发育受到抑制,5℃时茎叶停止生长,2℃则受到冷害,0℃即被冻死。高于35℃生殖发育受到影响,高于40℃生理紊乱而热死。充足的光照、适宜的温差利于养分的积累和转熟,促进植株健康发育,防止徒长,增强番茄的抗病、抗逆能力,提高产量。番茄对湿度要求:基本原则是除发芽、出苗以及分苗定植后的缓苗期,要求较高温度和湿度外,其他时期都不需要高湿度。对水分要求除定植前和开花期以及转熟期要适当控水外,其他各期都应保证充足的水分供应。1、选择高产搞病品种1、应选择耐低温,耐弱光、抗病性强的早熟高产品种。2.育苗播前种子处理番茄种子消毒处理。有两种方法,(1)温汤浸种,即称用清水浸泡种子1~2小时,然后捞出把种子放入55摄氏度热水,维持水温均匀浸泡15分钟,之后再继续浸种3~4小时。温汤浸种时,一般是一份种子,二份水;要不断、迅速地搅拌,使种子均匀受热,以防烫伤种子;三是要不断加热水,保持55摄氏度水温。可以预防叶霉病、溃疡病、早疫病等病害发生。(2)磷酸三钠浸种,即先用清水浸种3~4小时,捞出沥干后,再放入10%的磷酸三钠溶液中浸泡20分钟,捞出洗净。这种方法对番茄抗病毒病有比较明显的效果。营养土配置营养土按肥沃园土∶腐熟厩肥=2∶1的体积比配制,1m3中加入充分腐熟的鸡粪20~30kg、过磷酸钙1~2kg、苗木灰4~5kg、40%拌种灵200g,充分拌匀育苗操作步骤①消毒 育苗盘消毒可采用10%漂白粉浸泡2-3分钟,再用塑料膜包好放置20-30分钟,用清水冲干净晾干即可;池子、场地消毒用多菌灵等杀菌剂喷湿;池水消毒用漂白汾进行消毒,1000kg水用10g漂白粉。②基质的装填先将基质用适量清水洒湿,湿润程度以手握成团,放开后轻轻一动可散开为宜,再将基质装满已消毒的育苗盘孔内,装填要充分、均匀,松紧程度要适中。③播种播种前将苗床上的营养钵或育苗畦浇透水,水渗下后,取拌好的药土撒在营养钵或育苗畦上,把催好芽的种子均匀撒于育苗畦或营养钵(每钵播种2~3粒),用种量750g/hm2。播种后覆1cm左右的药土,加盖地膜,扎扣小拱棚,保持地温25~28℃。④苗期管理温湿度管理:苗期将大棚两头和两侧揭开进行通风换气,遇大雨将侧膜落下。白天温度控制在30℃以下,夜间控制在15℃以上。相对湿度保持在40%以下,温度过高则要通风降温排湿。肥料管理:幼苗长到四叶一心时施入营养液肥或复合肥。一般每8盘苗用肥,施入后池水要充分混匀。幼苗长到7-8片叶时移栽,移栽前喷施一次甲霜灵800倍液。3.建棚整地、施基肥和防地下害虫①选地建棚根据当地观察,建棚应选择水源良好,排灌方便,地势平坦的田块,建设长度根据田块长度而确定,宽度一般,大棚两头留门,门宽。留门一是方便进出,二是利于通风。②整地施基肥移栽前半个月进行平整地,此时每667m2可施入腐熟的农家肥3000kg,农家肥要翻挖深埋。拉墒宽度(含沟),一般宽的棚拉4墒,要求深沟高墒,拉墒高度35cm以上,墒体饱满,拉墒后每667m2用复合肥75kg , 普钙50kg,钾肥20kg,硼砂1kg,锌肥2kg ,混合均匀后,在墒上挖20cm深的施肥沟撒入肥料,要求施肥沟偏左或偏右,保证打塘不在施肥沟上。打塘规格根据品种长势而定,一般国外品种长势强,塘距60cm,国产品种长势稍弱,塘距40cm。连作二茬田块应塘施抗重茬剂如:重茬恩益碧或重茬PK4.及时定植定植时要做到苗龄合适,秧苗过小或过大都不利于成活。一般幼苗7-8叶时移栽。漂浮苗做到带基质移栽,每塘一株,国外品种每667m2栽920株,国内品种栽1200株。均采用双杆整枝。定植前先铺上地膜(夏秋季可以不盖地膜),定植好后把穴口用土封严。及时浇定根水,此次浇水要浇透。5.大棚管理①温湿度管理漂浮苗定植后迅速生长,夏秋季要揭开大棚两头及侧膜,夜间不落膜,白天温度控制在32℃以下,湿度控制在%以下;冬春季揭开两头,侧膜不揭,白天温度控制在27-28℃,夜间温度不低于8℃,湿度保持下40%以下。②水份管理6月进入雨季,要注意排水。要求清理大棚四周边沟及棚内中沟,能够及时排出积水。番茄生产初期需水较少,但到结果期需水较多,此时应每天浇水一次,保持土壤湿润,冬春季旱时,生长初期可酌情灌水,以水走底为度,2-3小时后及时排出。③肥料管理番茄旺长初期要进行大压肥,此次667m2用复合肥20kg, 钾肥15kg混合后,施于植株根部15cm处,然后结合培土。结果期每隔10-15天进行浇施一次, 每667m2用复合肥3-4kg。适当进行根外追肥,肥料可用磷酸二氢钾间隔喷施。④整枝打杈无限生长型品种均采用双杆整枝,一般植株长到12-14叶时发出两个主枝,去除其它多余侧枝,保留较平齐的两个主枝,及时做好搭架、吊线和绑蔓工作。⑤及时封顶竹棚栽培一般留6台果,当第6台果座果成功可以封顶。当第一台果子成熟可以打除其果下叶片,每成熟一台果就及时打除其下部病残叶,侧枝侧芽,利于通风透光,减少植株养份消耗,提高产量。⑥病虫害防治①立枯病、猝倒病(苗期病害):发现病苗及时拔除,并喷施75%百菌清可湿性粉剂600~800倍液。②番茄脐腐病:田间水分管理要均衡,用1%过磷酸钙水溶液叶片喷雾,10~15d喷1次,共喷2次。③病毒病:播种前对种子消毒,田间管理时要及早杀灭蚜虫并及时拔除病株。④灰霉病:降低土壤湿度,及时用速克灵烟熏剂下午熏棚。⑤早、晚疫病:加强通风透光,降低空气湿度,及时用45%百菌清烟雾剂3 750g/hm2熏棚。⑥蚜虫、白粉虱:用黄板诱杀,将涂有机油的黄色板置于棚室内高出植株的地方。烟雾剂熏蒸,每次用量6 000~7 500 g/hm2,分成4~5堆,暗火点燃,闭棚熏烟3h。6.及进采收大棚春番茄的采收期随着气候条件、温度管理、品种不同而有差异。一般从开花到果实成熟,早熟品种40—50天,中熟品种50—60天。果实定个发白后(白熟期)可进行乙烯利人工催熟。一般在果实转色期采收上市。我还有其他的,要是你觉得不行,再发给你

220 评论

想鱼的熊

Olympics and I Dear friend, I have a great news to inform here. Through long efforts, Beijing has been granted the right to host 2008 Olympic games. As a resident in Beijing, I feel quite excited and like to share with you my happiness. This success means a lot more than a game to me. In the first place, this Games will definitely promote the development of our economy. According to a recent survey by some experts, this games will raise our GDP by about 3%, and offer about 10,000 jobs. What‟s more, our culture will be widely recognized and accepted all over the world through the Games. People will come over from every corner of the world, and experience Chinese culture in every aspect. Besides, through the games, our living environment will be greatly improved. For example, the public transportation system will be up-dated. Moreover, it‟s known that more trees will be planted, and grassland will be considerably expanded. My friend, I really look forward to the coming of this great Games. As an individual, I‟m all ready to offer my help in any way I can. I also hope to invite you all to come here, and watch the games in yours,奥运与我 亲爱的朋友,我有一个好消息,告知这里。通过长期的努力,北京已获得申办2008年奥运会。作为一个在北京居住,我感到很兴奋,你想分享我的快乐。 这一成功意味着很多超过我的游戏。首先,本届奥运会一定会促进我们的经济发展。据一些专家最近的一项调查,这项比赛将提高约3%的国内生产总值,提供职位约万。更重要的是,我们的文化将得到广泛认可和接受世界各地通过奥运会。人们会走过来从世界的每一个角落,体验中华文化在各个方面。此外, 5 透过游戏,我们的生活环境将大大改善。例如,公共交通系统会过时。此外,据了解,将种植更多树木,草地将大大扩大。 我的朋友,我真的期待着这个伟大的奥运会的到来。作为个人,我都愿意提供我的任何方式我可以提供帮助。我也希望能邀请大家来到这里,观看2008年奥运会,此致。Tourism in ChinaRecent years have seen a tendency in China that tourism is growing faster. According to a recent survey made by some experts, about 47% urban residents travel regularly, and 28% rural residents also make their tour across the country. The survey also shows that more people are interested in tourism, and will join the army in the future. Facing this tendency, we can‟t help exploring some underlying factors that are responsible. In the very first place, with the policy of reform and opening up, Chinese people‟s living standard has been greatly improved, and therefore, most of them can afford to travel around. What‟s more, it is believed that people now take a more positive attitude to tourism, and regard it as a life style. In addition, tourism facilities are becoming better and better. For example, transportation develops fast, and many scenic spots are available now.中国旅游最近几年,在中国的趋势,旅游业增长较快。根据最近的一项调查显示一些专家认为,约47%城镇居民定期作出旅行,28%的农村居民,也使他们的全国巡演。该调查还显示,更多的人在旅游有兴趣,并会在将来加入军队。 面对这一趋势,我们不能不说是负责任的开发一些潜在因素。在第一个地方,随着改革开放政策,对中国人民的生活水平有了很大提高,因此,他们大多数都不能周游。更重要的是,它相信,人们现在更积极的态度,旅游业,把它作为一种生活方式。此外,旅游设施正在变得越来越好。例如,交通运输发展迅速,许多景点都已经上市。What a disaster(灾难)!So far,it's reported that more than 60,000 people died in the SiChuan 's more, millions of people there have become they are still in the danger of illness and other difficulties. Anyway, thanks to all the kind people, in and abroad,the situation has been changing we still work hard at it,especially to build houses for those homeless people and cure the injured people. What can we do now? Besides doing our own job well,we can donate money to firmly believe that with the party and the government's strong leadership, and with the people of all nationalities throughout the country to aid,this earthquake relief will be a victory!什么是灾难(灾难)!到目前为止,有报道称,超过60,000人在四川的死亡,再加上数百万人民有成为他们在疾病和其他困难的危险之中。无论如何,感谢所有善良的人们,在国内外形势已经改变我们仍然在努力工作的,特别是为那些无家可归的人建造房屋和医治受伤群众。 现在我们可以做什么?除了做好自己的工作做好,我们可以捐钱给坚信,有党和政府的坚强领导,有全国各族人民的援助国,这将是一个抗震救灾的胜利!The average family income in our Kangming City increased from 8,000 yuan per year in 1998 to 20,000 yuan in 2008. In the meantime, the structure of the average family expenses has changed, too. These graphs show the change clearly. The biggest part of the average family expenses is housing. In 1998, the average family spent 25 percent of its income on housing. In 2880, expenses on housing rose to 42 percent. Food and drink are the second biggest part of the average family expenses. In 1998, about 18% of the average income was spent on this item. In 2008, the figure grew to 30%. As a result of such increase in the expenses on housing and food, expenses on other items have been reduced from 57% in 1998 to 28%in 2008. Thus, a conclusion can be drawn that as income increases, people can improve their living step. But still the average family has to spend a large part of income to meet the basic needs.在我们康明城市家庭平均收入从8000元,每年1998至2008年的20,000元。在此期间,平均家庭支出结构也发生了变化。这些图形显示了明显的变化。 而一般家庭开支的最大部分是住房。 1998年,平均每个家庭花费了其对房屋的收入百分之25。在2880,关于住房支出上升到百分之42。食品和饮料是平均家庭开支第二大的一部分。 1998年,大约18%的平均收入是用于这一项目。 2008年,这一数字增长到30%。由于在费用等增加住房和食物,结果在其他项目的费用已经减少到1998年的57%,至2008年的28%。 因此,可以得出一个结论,随着收入的增加,人们可以改善他们的生活步骤。但仍是一般家庭要花费很大一部分收入,以满足基本需要。

194 评论

小燕子an

这认识每次都要给我说一声

160 评论

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