普鲁士国王腓特烈因吞并奥地利西里西亚而与奥地利女皇玛丽娅·特蕾西亚结仇。女皇联合俄国女沙皇和法王积极反攻，腓特烈先发制人，拉开七年之战的序幕。七年来，死伤无数，尽管小胜几场，奥俄法盟军还是把腓特烈逼到险境。在一次战斗中，腓特烈中弹倒地。幸好，金制鼻烟盒挡住了子弹。大难不死必有后福。随后，女沙皇逝世，继任者是普鲁士国王的铁粉，命令俄军与普鲁士议和并且化干戈为玉帛，一同作战。再加上在北美殖民地争夺的失利，法军也撤兵。幸运降临腓特烈，带来胡贝尔图斯堡合约，结束了七年之战。这是以一己之力对抗法俄奥盟军的胜利。腓特烈虽凭运气得偿所愿，但是为此付出巨大的人员伤亡；女皇玛丽娅·特蕾西亚也尽其所能，阻止腓特烈吞并奥地利的领土。
七年战争中，腓特烈大帝愈挫愈强，以惊人的忍耐力，独抗法、俄、奥三大强国。这种隐忍源于其父强势且军事化的教育，把内心的忧愤内心化为现实中更强大的力量。
背景：经济和科技成绩斐然，国力大增，德国人迫切希望得到世界认可，开拓市场，重新瓜分世界。为此，威廉二世积极进行军备竞赛，把军队作为国家第一要务，认为所有人都应敬仰国王、顺从军队，统治阶级与工人阶级的矛盾由此激化。
发展：为了转移国内矛盾，威廉二世发动对外战争，如八国联军侵华镇压义和团。他还常发表好战、狂妄、傲慢的演说，这被视为军事动员。渐渐地，国民受此影响，国民狂热的恶果在费迪南大公遇刺后得到突显。
结局：一战所带来的苦难，使得德国人民想要一种从上而下的民主，从而引发一场革命，最终，威廉二世退位，德意志第一共和国成立，德国成为民主国家。
幼年的自卑使得威廉二世痴迷于军事上的强大。在世界格局大体已定的背景下，国家的崛起使他变得狂妄，再加上幕僚的影响，最终把德国引入一条错误的道路。可见，小到个人，大到国家，在一个浮躁的时代，要保持清醒的自我意识，才能抵挡外界的纷扰。
巴巴罗萨为了教皇平起平坐和扩大税源，多次和狮子亨利一起出征意大利，曾进攻米兰，抢走三圣遗骨并奉之于科隆大教堂。
狮子亨利也因此获封拜仁州领地。他积极扩展封地，因此被视为除了国王外，最有权势的诸侯。在巴巴罗萨又一次要求狮子亨利跟他一起远征意大利时，狮子亨利严词拒绝。
巴巴罗萨出征意大利，铩羽而归。对于巴巴罗萨来说，是帝国梦碎；对于意大利人们来说，是自由民对骑兵的胜利。巴巴罗萨再次屈服于教皇。他将此归咎于狮子亨利，没收其领地，并分给其他诸侯。在67岁，他在前往耶路撒冷，进行十字军东征的途中溺水而亡。
纵观巴巴罗萨的一生，骁勇爱战。为了展现帝国雄风，他对外多次出兵意大利，给意大利人们带来灾难；对内打压桀骜不驯的诸侯，如狮子亨利。但最终臣服教皇，败战而归，在十字军东征的途中逝世。他是德国人眼中的传奇，意大利人眼中的恶魔。
德国的民族意识形成晚，此前民众并没有国王概念，到了9世纪德国才有君主集权的萌芽，比较西欧国家晚了几个世纪。所以作为一个相对“年轻的”国家，德国并没经历过奴隶制，而是直接开始封建化进程。造成这些现象多源于当时德意志土地上没有明确的国土界限，国内多原始森林，没有平原地形广布等易于管理的地理环境；族民不单一，有来自各地的居民如勃艮第人、巴戈利亚人、哥特人、法兰克人等，这样杂的人员聚居将致各部落独立性强，对于中央集权的渴求并不高。
不过莱西费尔德战役改变一切，继位的奥托一世野心勃勃，挑战频繁侵犯劫掠德意志民众的马扎尔人，在这个“围城之战”获胜。保卫了国家，民众对帝王的崇拜上升到个人对同一国家的认同，这是德历史之一大进步。
但可以看出，德意志还是深受宗教影响：“围城一战”，通过教会征集军队，通过赋有宗教胜利意义色彩的圣矛鼓舞士气；帮助罗马教廷征服意大利，确立无教堂加冕无立的制度；奥托为平衡主教与公爵给予教会封建主相应特权如关税征收。借助教宗统治，政教合一的方式致德意志稚嫩的君主集权政权时刻处于危机中。
华伦斯坦和他的战争
故事发生在1618-1648的三十年战争期间，这场关乎信仰与权力的战争的导火索是布拉格的窗户事件。在这场战争中涌现出的军事指挥天才华伦斯坦巧妙的利用百姓、商人、工人等战争牺牲品的力量解决了征兵以及粮饷问题，火炮的大量使用和教学书写了战争的新历史。
这场战争可以用“战争要用战争来养活”形容。华伦斯坦利用他的“战争公式”和变卖教堂资产等无限放大权力依靠战争发迹，并获得了位于波西米亚的豪华官邸；同时也被占星家言中，因为得罪众人而被削权。战争后来的走向让华伦斯坦重获权力，但最后皇权和华伦斯坦的权力过大发生了冲突导致华伦斯坦免不了一死。而华伦斯坦在这场战争中的意义在于，他在那样的年代史无前例地利用经济和组织层面的想法去思考和供给军队。
最后人们也认识到，战争持续下去分不出对错，新教与天主教必须共存。战争是残酷的，许多无辜的人牺牲在战争中，战争最惨不忍睹的罪行便数“瑞典饮料”了，在一项项罪行中我放佛看到了二战期间大屠杀的残酷暴行的影子。
在来希费尔德战役的19年前，作为萨克森公爵的奥托带着他的儿子—里奥·鲁道夫和他的臣民前往亚琛，奥托一世邀请了所有公爵和领主来到亚琛以参加他的加冕仪式，奥托在亚琛大教堂加冕称王，这就是德意志王国的起源。但是不仅仅他的兄弟们，一些公爵也与国王对立，因此奥托知道，只有扩张领土，他的权利才能得到巩固。奥托在马格德堡建成了他的皇宫。奥托的第一个儿子鲁道夫非常不满于奥托没有把皇位传给他，于是在马扎尔人入侵后，他主动联系，以动摇他父亲的王权，他的阴谋被奥托打败，因为出卖自己的民族，他众叛亲离，无处藏身，最终幡然悔悟，回到他父亲身边并得到了奥托的原谅。
奥托从帝国各处召集人马，来到奥古斯堡附近的莱希战场，经过艰苦的战斗，取得了辉煌的胜利，获得了梦寐以求的巨大影响力，因为这场战役获得了大帝的称号。
从这个视频中，我了解到了德意志王国的起源和加冕仪式的现场；也认识到了从奥托登上卡尔大帝的宝座被人们视为狂妄到极致进而之后通过扩张战争与胜利被尊称为大帝的变化过程。
亨利四世在四岁被立为王。随后，他被诱拐到科隆，在大主教的监护下长大。成年之后，重夺王权。然而，国内的诸侯不信任他；国外的罗马教皇试图动摇王权。亨利四世和教皇互相宣布罢黜彼此。
对此，国内一些诸侯们决定，倘若亨利四世在一年内不能得到教皇的宽恕，他们将不承认他的君主地位。为保皇位，亨利四世翻越雪山来到卡诺莎宫向教皇请罪。教皇紧闭城堡大门，在亨利赤足三天三夜站在雪地后，才开门饶恕他。亨利四世因此保住王位，史书称赞卡诺莎觐见为一步好棋。
回国之后，亨利四世肃清叛变的诸侯，巩固了权力。随后，他挥军意大利，驱逐教皇格利高力七世，另立新教皇，一洗前辱。由此，王权凌驾于教权之上。
教皇格利高力七世的继承者与国王达成协议，解决王权与教权之争。亨利四世成为王权与教权之争最后的胜者。
在这场斗争中，面对国内叛变的诸侯、国外蠢蠢欲动的教皇，亨利四世忍辱负重，历经险阻，战胜敌手。由此可见，成大事者在必要时，需要忍一时之辱，才会有海阔天空。冷面无情的教皇以欺人太甚的方式展现权力，最终客死他乡。可见，尽管占尽优势，也要为对方留点颜面。
“德国人：奥托与帝国”讲述了德意志国王奥托大帝为了实现君临整个西方基督教世界的雄心，在国内外所采取的征伐。
对内，奥托既强权打压兄弟，又试图满足他们；借助对上帝的信仰、通过坚韧不拔的毅力维护统治。在面对长子鲁道夫的背叛时，奥托亲自上阵击败鲁道夫，后来传说鲁道夫悔过，奥托也就原谅他。
对外，奥托联合所有力量在莱西费尔德战胜马扎尔人（也即今天的匈牙利人）。这场胜利让奥托拥有大帝的称号，德意志帝国的雏形也由此形成。同时，奥托渴望进一步称雄欧洲，征服意大利。然而，在实现目标成为卡尔大帝的继承者后，奥托不仅面临意大利诸侯、阿拉伯人、拜占庭人的挑战，而且长期在外征战也使得德意志帝国渐渐失去昔日的荣光。
纵观奥托大帝的一生，他积极征战，攘外安内。一方面，他既抵御了马扎尔人的侵犯，又维护了国内的统治地位。另一方面，奥托长年的南征北讨，对内，劳民伤财、国力大衰；对外，不仅给当地的人民带了灾难，还面临当地贵族的挑战。可见，在欲望不断膨胀时，一定要保持清醒头脑，适可而止。
With the rapid development of science technology science,digital agriculture has been put forward formally.Digital agriculture,both intensive and information,is a agricultural techology with the support of geo-spatial and information techology,integrating organicially remote sense ,computer techology,automation techniques,GIS,GPS and other highly fresh techology with geography,agriculture,ecology,pedology and other basis subjects in order that supervises crops in the process of agricultural growth.It aims to regularly acquire the condition of agricultural growth,water yield,pest and disease damage,forming dynamic and spacial information system to make full use of agricultural resources,lower production cost,improve ecology environment and ensure the quality of crops.Digital agriculture combines IT with the whole agricultural course effectively,which attaches important significance to reform traditional agriculture and transform agricultural production pattern.There are three characteristics.First,agricultural production is highly professional,large-scale and entrepreneurial.Second,there is a through and agricultural production system.In the end,digital agriculture builds a kind of trinity among agricultural education,science research,popularization.
Recently,digital agriculture techology has made rapid progress in China,making a breakthrough in the key and digital agriculture techology,developing a series of practical production of digital agriculture techology and building networking and digital agriculture platform.We have also formed a frame of digital agriculture techology and a system of digital agriculture techology,which promotes agricultural informatization and modernization in China.
巴巴罗萨和狮子亨利：
1.巴巴罗萨的统治充满争议，但是他在历史上留下了不可磨灭的一笔。
鹰：皇权的象征，象征皇帝对世界的统治
巴巴罗萨娶妻，政治结合，强强联合，巩固统治
2.狮子亨利
追求皇权，与巴巴罗萨有不和。最终被巴巴罗萨收回全部封地。
3. 莱尼亚诺战争
巴巴罗萨的皇帝骑士失败，自由市民取得战争胜利。意大利长期仇德情绪。
4. 皇权与教权斗争持续
1177年，威尼斯和平会议，教权占上风。
5. 分封国家领土原因：获得诸侯支持。这也是联邦制的源头。
亨利四世的父亲身患痛风，提前选好仅4岁的亨利四世为继承人。两年后，亨利三世逝世，亨利四世的母亲摄政。1062年，科隆大主教阿诺劫持了年幼的亨利四世，按照诸侯的意愿，将亨利四世培养成一位明君。亨利四世成年后，重新执掌王国的大权。1076年，亨利四世遭到教皇格里高利七世的绝罚，处以破门律：废黜德意志国王亨利四世。德意志侯爵齐聚商议是否还要继续效忠亨利四世，商议的结果是：如果亨利四世在一年内无法获得教皇的原谅，他们将不会再为亨利四世效忠。1077年，亨利四世被迫来到教皇格里高利七世所在的卡诺莎城堡，目的是请求教皇的宽恕。亨利四世赤着脚在城堡外的冰天雪地站立了3天3夜，教皇承受了沉重的压力，最终宽恕了亨利四世，这就是著名的“卡诺莎觐见”事件。“卡诺莎”事件意味着罗马教皇权力达到顶峰，但也是亨利四世一个成功的策略。后来，亨利四世打败了鲁道夫，并砍下他的手。当亨利四世的地位稳固后，便前往意大利，驱逐了格里高利，另立新皇为自己加冕，而格里高利七世在流放中度过余生。
BUILDING DIGITAL FARMS FOR THE FUTURE
It is universally acknowledged that agriculture is vital for a country's development as well as people's standard of living. The cultivated farmland has been decreased in the past few years, while the population has been increasing day by day. How to produce more plants by using less resources would become a big problem for today's people.
Fortunately, someone came up with a good idea. The MIT's open agriculture initiative is promoting the digital farms building, which will help us produce more and more healthy and nutritional plants in a more modern way.
At first, let me illustrate some understandings about " What's digital farms?" It's a place in which plants could grow well without soil by the use of hydroponics. And the techniques could help you to produce plants in a totally controlled environment. For example, you can check everything from content to temperature, even the light exposure can be regulated. And you can always make those plants look, taste and grow exactly the way you want them to be.
What are the benefits of digital farms? In fact, there are lots of big advantages.
First, it's very good at saving time. By using these methods, you could make the plants grow three to five times faster than traditional farming, which would help you save a lot of time and improve the productivity. Also, you might do something like harvesting within twenty minutes.
Second, it's very water-saving, you just need to use 70% to 90% percent less water than traditional farming to produce the same plants. I think it would be especially meaningful for those deserted places in the northwest of China. People there could produce cabbages and some other vegetables in the local area instead of purchasing them from other places.
Third, it's much more convenient than traditional farming. It's much easier for carrying.So you can place those digital farming machines closer to cities, and you can even put them in the supermarket.
Fourth, you can save a lot of space by adapting digital farms. If the plants were harvested, you could plant the same or different plants at the same place again and again for a year around.
Fifth, the plants grown in the digital places would be higher-qualified because they were developed under a stringent control. By using the traditional way to produce plants, there would always have a problem that the plants are very different ,some bigger, some smaller, some look good and beautiful, some look bad and ugly, some taste delicious, some taste awful. But this problem would be perfectly solved in digital farms because some plants would be produced as good as others.
Last but not least, consumers would feel safe and satisfied because they could monitor the growth process of the plant they are going to buy and get some more reliable information from the suppliers. At present, many people are afraid of purchasing and eating up vegetables or fruits produced by other people. What if those suppliers use poisonous chemical materials to make more profit? They insert some chemicals which would be bad for people's health to the products to make them much fresher or lightly. I really hate this. But with the development of digital farming, the condition would be changed.
At last, I really want to say that I'm glad with the development of the digital farms. I know there are many people who against plants produced in digital farms because they think it's not a very natural way to cultivate plants like that and it may do harm to our body. We do have to pay more attention at the road of science revolution, but we also have to show more courage to try, to challenge and to develop.
数字农业的了解&对中国发展农业的意义。
Digital farm
The cultivate enviroment of the digital farm is in a lab, and all the plants grow without soil and are in a totally controlled environment. Besides, water sensor and light exposure is highly regulated and can be changed by people at will.
The digital farming has a lot of advantages. Firstly, it is 3-5 times faster than the traditional farming and 70%-90% less water than the traditional farming, what's more, it is also health benefit.
Distance from farm to home is shorten. Plant is degrading from growing up to entering people's mouth. The digital farming system can be operated in city, the plants are grow in city so people can eat within 20 mins.
Retailer & food companies is the foundamental backbone of this creation. Because they know that nowadays. the customers are changing, they want trust and transparency.
2. The significance to China
Fistyly, is the people. With the biggest population in world, digital farming can greatly improve the living situation in the remote area of China. It can alleviate the severity of starvation and poverty.
Secondly, is the land. Although China occupies 9.6 million square kilometers of land, there are still many infertile wasteland. So the apply of this technique will surely save the plowland.
Thirdly is water resource. This technique can saving water and protect the environment effectively.
Forthly is the health. People may concern more about their own lives, and this technique ensures that it does good to people's health and there is not need for people to worry about the date.
Fifthly is the industry. This technique may promoting the development of a new industry and contributes to the economy.
Sixthly is the society. People see the transparency growing process of plant and may comfort people in some way and becomes a harmonious society.
奥托继其父为萨克森公爵，即位之初，奥托处于重重的危险包围之中。他的兄弟唐克马尔领着一班萨克森贵族首先向他发难，接着法兰克、巴伐利亚、洛林等公爵纷纷响应，此时奥托不慌不忙地利用中等贵族来反对大贵族，很快就瓦解了反国王联盟。
奥托的儿子鲁道夫不满奥托要将皇位传给弟弟，与外敌联手反对国王。奥托亲自帅兵，很快就平息了叛乱者。
954年，一个长期困扰德意志人的心腹大患的蛮族马扎尔人入侵，奥托率领德意志和波西米亚联军，几乎歼灭了马扎尔骑兵，解决了马扎尔人的威胁。奥托一生的威望主要来源于这次胜利，被尊称为“祖国的捍卫者”。
在胜利的催化下，奥托开始追求更高的荣耀，入侵意大利，操纵教皇的费立，企图染指南意大利，从此与盘踞那里的拜占庭势力发生冲突，最后两国议和，奥托的儿子必须娶拜占庭的公主。奥托入侵意大利，不但给意大利人民带来了痛苦和灾难，也给德意志民族带来了不幸。
1. 中世纪，德意志国王&罗马教皇 孰是至尊强者？
卡诺莎悔罪（封建皇权屈从教权）：格里高利七世开出绝罚，开除、废黜和放逐亨利四世。
封建王权与超越王权的教会争权夺利：皇帝代表的是世俗的封建王权，而王权的范围是有封疆之界的政治上的统治；教皇代表的是超越王权的教会势力，在整个欧洲都有强大势力，在思想文化上束缚着各个阶层的人，在中世纪宗教势力强盛时代更积极插手政治上的争夺，此教会超越王权的局面必然导致世俗与宗教的争斗。
卡诺莎悔罪亦是亨利四世的明智之举，使他重新获得人民的支持，但仇恨的根已深种。格里高利七世的流亡便是例证。
2. 德国并没有实现高度的中央集权：神圣罗马帝国既不“神圣”，也不包含“罗马”，还不是一个“帝国”。
古罗马帝国由于种种原因在中世纪前本就一直处在分裂状态。帝国境内诸侯遍布，皇帝只是略大些的诸侯，享着名义上帝国首脑的头衔罢了。诸侯之间是一种伙伴关系，形成一种松散的联邦结构。
沃尔姆斯宗教协定：皇帝只有世俗权威，教廷则享有神权的垄断；主教需要同时对教廷和自己的君主效忠，他需要宣誓在君主有军事需要的时候出力；皇帝对主教空缺的领土有征税权。（至此，两权斗争暂时告一段落）
Digital farms means a highly integration of information technology and the different part of agriculture. By using modern information technologies, digital farms can realize real time monitoring of the plants, checking everything from the content to temperature. Techniques such as aeroponics and hydroponics can grow plants without using any soil in a totally controlled environment and can make a plant look, taste and grow exactly the way you want them, effectively creating foods that can be saved, shared and reused. While such methods are 3 to 5 times faster and use less water than traditional farming. Plus, foods grown in these ways are beneficial to people’s health. So digital farms is a challenge as well as an opportunity to the traditional agriculture.
Traditional agriculture usually calls for a large area of lands and perfect irrigation system. So its location usually tends to be in the remote area which is far from the downtown city. However, digital farms can remove it closer to cities where foods might be harvested and eaten within 20 minutes. As food is degrading on what it has to give you when it has been harvested and when it gets into your mouth, time means a lot. So, suppose we are those customers living in the downtown, which plants we might choose? Of course we will choose those foods that can be consumed within 20 minutes. Food companies, retailers and big retailers are the backbones of digital farms because they know that customers have changed and that customers want trust and transparency. Taken in this sense, digital farms has a promising future if it can be available to more and more common people.
We are soberly aware that China remains the biggest developing country in the world with a huge population, weak economic basis, uneven development and strong pressure on resources and the environment and that people’s living standards are still not so high. And we still know that China is an agricultural country and crop seed industry is a national strategic core industry. So the development of agriculture is of great importance for modernization in China. However, digital farms might shed a light on China’s agricultural development. At present, China is marching forward towards an industrialized country, which is a double sword for agriculture. On one hand, the development of industry can provide advanced technology for the development of agriculture. On the other hand, to some degree, industrialization is realized at the expense of agriculture. We can trace back to 1950s’ China, when agriculture was subject to the development of industry. Now, more and more labors are allocated to industries. Citizens in the village all flooded to downtown to make a living, leaving the elders and the young children left behind. As a consequence, many lands are wasted with less labors working in the farmland. So maybe digital farms can provide a new way to solve the problems existed right now and also help to perfect our agricultural system.
奥托初登王位时，身处一个危险的包围圈中。首先便是兄弟联合大贵族对他的发难，结成反国王联盟。幸而他没有慌乱，利用中等贵族对付大贵族，以迅雷不及掩耳之势快刀斩乱麻，废除、驱逐、收权、重整，一切淡定从容，稳定了内政。接着便是解决马扎尔人的常年入侵。时值德国部落公国林立的10世纪，外敌的不断入侵令奥托烦恼不已。期间甚至出现了自己的长子为争夺王位而与外敌勾结的倾覆危机。奥托积聚力量，后来凭借优良装备、长矛长剑收拾了马扎尔人。莱希费尔德战役使得奥托在德国乃至欧洲声名鹊起，他的君王身份得到极大认同，同时德国统一历史也出现大转折。但是，奥托一世和其他许多德国国王一样，狂妄地以古代罗马帝国及其皇统的合法继承人自居，醉心于征服意大利以重建罗马帝国和进一步称霸世界的政策。他不满足于“国王”称号，不遗余力地追求“皇帝”称号，追求帝国国土扩张，觊觎欧洲他国。后期离乡背井长时间征战欧洲，其中包括入侵意大利，企图染指南意大利时，与盘踞那里的拜占廷和阿拉伯势力发生冲突。970 年，奥托与拜占廷议和，被迫放弃对南意大利的野心，进行联姻，并让他的儿子即后来的奥托二世与拜占廷先帝罗慕努斯二世女儿狄奥凡诺结为夫妇。其实，奥托一世对意大利的侵略，不仅给意大利人民带来痛苦和灾难，而且也给德意志民族带来不幸，把有生力量都消耗在侵略战争上，国内割据势力乘机闹事，往往顾此失彼，疲于奔命。这样也终会使得已经近在咫尺的国家统一事业渐行渐远。
Digital agriculture refers to the remote sensing and geographic information system, global positioning system, computer technology, communication and network technology, automation technology and geography, agronomy, ecology, plant physiology, soil science and other disciplines organically, realize in the agricultural production process real-time monitoring of crop and soil from the macro to the the micro, in order to achieve the growth and development of crops, pests, water and fertilizer condition and the corresponding environment for regular access to information, generate dynamic spatial information system, simulation of the process of agricultural production, the phenomenon, achieve the rational use of agricultural resources, reduce production costs, improve the ecological environment, crop and the quality of the products.
Digital agriculture is the modern information technology, which is used for the visual expression, digital design and information management of agricultural objects, environment and the whole process of agricultural production. Digital agriculture makes the integration of information technology and agriculture to achieve effective integration, which is of great significance to the transformation of traditional agriculture and the transformation of agricultural production.
Characteristics of digital agriculture：
1.Agricultural production highly specialized, large-scale, enterprise
2.Improvement of agricultural production system
3.The “trinity” of agricultural education, research and promotion
China is an influential, agriculture-oriented and most populous country in which rural population constitute the utmost.The problems about agriculture, countryside and peasantry are very important in China. So Digital agriculture can help China solving these problems, it is very important in China.
"the digital agriculture" has become the important content of the world new agriculture science and technology revolution.Precision Agriculture and Digital Agriculture are the direction of world agriculture.Now our country agriculture is developing in the direction of the digital agriculture, a new type of intensive and agricultural informatization, compared with traditional agriculture.Digital agriculture technology is one of important symbols of modern agricultural high-tech, including digitalization, visualization, design, control and management of the whole process of agricultural production and supervision with application of digitalization technology.
We should follow the world's step.Traditional agriculture is not a good choice for us now.On the background, just make developing agricultural informationization greatly as an important breakthrough in order to shorten the digital gap with the developed countries, and implementing gap development with superiority afterwards, has been an strategic problem of the current economic and social development.The new rural construction must be under the scientific development instruction, speed up the agriculture advance in technology, build the good environment, take positive innovation, transform agriculture growth way, develop the digital agriculture vigorously.The development of digital agriculture is conducive to the development of agriculture in China, and it is helpful to solve the problems of agriculture, countryside and farmers.
So Developing digital agriculture is very important for China.
The MTI Open Agriculture initiative Caleb Harper is introducing the digital farm into plant cultivation. In digital farm plants could grow in a controlled environment without soil by the use of aeroponics and hydroponics. The sensor in water will take reading every eight seconds, checking everything like temperature. Such a digital agriculture may bring benefits to human beings. First and foremost, Caleb Harper says this method is three to five times faster and uses seventy to ninety less water than traditional farming so people can enjoy their harvest within twenty minutes without plants degrading. Secondly, because of the decentralization future, the digital farming will be a brand new way of production and even a fresh lifestyle. For adapting to this new way, more food companies and retailers are collaborating with Open Agriculture in order to provide trustful and transparent plants for their new customers.
China is a country of agriculture which is the solid foundation for its economic and social development. Therefore, the progress made in agriculture can considerably boost a whole country’s prosperity. If we apply digital farm into China, advantages can not be overlooked. Most importantly, this mean may effectively handle the shortage of grains in China. Due to a large population and a huge gap between Eastern and Western China, many have been threatened by hunger. The digital farm with its excellent production efficiency will offer adequate food to people in need. Secondly, compared with the traditional way, digital farm uses less water and takes up no soil which unquestionably could save more water for dried areas and more earth for afforestation. Thirdly, the digital farm could produce plant and grain everywhere which better accommodates to urban people’s demand. China is on its road to modernization and urbanization, the rural places used for farming and agriculture is turning into towns or cities. With the expansion of cities and declination of countryside, there will be no extra earth for farming. However, people living in cities could harvest plants and grain from the digital farm conveniently. Apart from those mentioned above, drawing upon the merits from other country’s achievement will promote Chinese scientists to study further the way of optimizing agriculture based on the digital farm.
However, before introducing it into China, relevant scientists and researchers should check if the plants produced in this digital farm is safe or not. Recently, the safety of genetically Modified Food has aroused people’s attention. Like the MG food, digital farm could benefit agriculture, countries development, but mankind’s security should be put on the top of list. Now that we can not confirm the plants growing in a unnatural way can be in line with the food standard, efforts should be made in it in advance instead of imprudently introducing it in. If its food is far away from the food safety standard, prohibition of the digital farm should be forcefully implemented and, of course, Chinese scientists will be advised to offer assistance to Open Agriculture’s staff to face this stunning challenge so as to improve this technology.
BUILDING DIGITAL FARMS FOR THE FUTURE
What are digital farms?
With technological aid, digital farms cultivate plants without using any soil and totally control the climate.
The advance of digital farms
Digital farms are three to five times faster and 70% to 90% less water than traditonal framing. In addition, it brings about health benefit in that it shortens the time from the crops’ being harvested to being served on the table. According to Caleb Harper, Member of MIT Media Lab Open Agriculture Initiative, crops are degrading during this time in terms of nutritional value and plants can be moved closer to cities by way of this method, ie.harvest and eat within twenty minutes.
How digital farms work?
In digital farms, sensors in the water take readings every 8 seconds checking everything from mineral content to temperature. Even the light exposure can be regulated. All these make the plants look, taste, and grow exactly the way you want them, which effectively creates a recipe that can be saved, shared, and reused.
The Implications of digital farms to Chinese agriculture
Digital farms will exert far-reaching influences on Chinese agriculture. More specifically, the influences can be exemplified in the following aspects.
Firstly, digital farms help to economize resource. Since digital farms do not require soil, a large amount of land can be saved. With the increase of population and the unchanged acre, digital farms relieve the burden of land shortage. Moreover, as digital farms effectively control the elements the plants need, resource efficiency will be improved. A typical exampley is that the usage of fertilizer can be decreased, which contains the agricultural pollution and boosts the development of green agriculture.
Secondly, digital farms appease the environmental impact on agriculture. From ancient times, environmental factors, like soil, water,climate, terrain etc, have great influence on agriculture. As digital farms are able to completely control the climate, the independence of agricultural can be strengthened. Eventually， the resistance against natural adversity will be reinforced and morden agriculture will be carried forward.
Last but not least, since digital farms accompany technological support, it is conducive to promoting progressive techonology in agriculture. Cultivators need to master technology so as to grow the plants. This motivates agricultural labor to learn the sophisticated technology. Hence, digital farms update people’s knowhow.
