【摘 要】
:
The vegetable production in greenhouse grows rapidly in rural and suburb in China in recent decade.However,problems such as large land invasion of grain and crop fields,traditional cultivation methods
【机 构】
:
Key Laboratory on Modern Precision Agriculture System Integration Research of Ministry of Education,
【出 处】
:
2012中国农业机械学会国际学术年会
论文部分内容阅读
The vegetable production in greenhouse grows rapidly in rural and suburb in China in recent decade.However,problems such as large land invasion of grain and crop fields,traditional cultivation methods,shortage of soil and water resources,continuous cropping field,environment deterioration and unsustainable development have generated severe challenges during the rapid development of rural greenhouse facilities.It is in great demand to renovate the development mode of rural greenhouse facilities and promote new advanced technology.Environment-friendly and sustainable closed hydroponic production system and equipment technological innovation was shown in this paper.To avoid the environment solution,substrate culture methods were used in the traditional rural greenhouse.Also a kind of white plastic material was designed to cover whole place inside the greenhouse,which can isolate the crops and soil.It could not only avoid the environment pollution,but also saving the water,fertilizers and energy,etc.Intelligent irrigation system with fertilizers together,which called “smart hydroponics” instead of traditional pour irrigation or tube irrigation,using drip irrigation to maximum save water and fertilizers also.These innovation improve the traditional greenhouse to closed system,which will evaluate about 3~5 times income for the growers.
其他文献
An oscillatory ripper which was developed by China Agricultural University to break hardpan was used in this study,common in Maize (Zea maize) farms especially after harvest when heavy combine harvest
A self-propelled spraying operating device with multi-functions was designed for orchard,which was tested and demonstrated in the peach garden at Yuzishang village of Pinggu in Beijing.Remote control
A ZigBee WSN (Wireless Sensors Network) was established to collect growing and environmental data from each tree in the apple orchard.A PDA was customized by integrating ZigBee coordinator module,GPRS
The shortage of water resources has become a major block of agricultural production.The main food crop is rice.It is planted in two ways,water cultivation and dry cultivation.Although the rice has hig
为了探索蛤不同组织应对派琴虫入侵的差异性,本研究将感染奥尔森派琴虫的菲律宾蛤的腮组织和斧足组织进行分离,利用本实验室建立的奥尔森派琴虫培养方法在两种组织中分别培养派琴虫,并检测派琴虫在这两种不同组织中的生长曲线及生长特性.通过体外8周培养,结果显示:1)派琴虫能在菲律宾蛤的腮和斧足组织中存活并繁殖;2)腮组织中培养的派琴虫以营养孢子为主,而斧足组织的培养的派琴虫以休眠孢子为主,营养孢子较少;3)腮
Dicrocoeliosis,caused by D.dendriticum,is a parasitic disease in ruminant worldwide,causing severe economic losses due to liver function impairment.Traditional morphological methods for identification
本研究以寄生于绵羊瘤胃的鹿前后盘吸虫为研究对象,对其核糖体序列完整重复单元包括18S核糖体DNA小亚基序列、内转录间隔区1、5.8S、内转录间隔区2、28S核糖体DNA大亚基序列、基因间隔区进行扩增、测序及分析,并与G-enBank上已发表的其他吸虫的相关序列进行比较,以猪蛔虫作外群,基于核糖体18S rDNA序列,对鹿前后盘吸虫和其他代表性吸虫采用最大简约法(MP)、最大似然法(ML)和贝叶斯法
Schistosomes infect around 280 million people worldwide.The worms survive in the veins of the final host,where thioredoxin glutathione reductase (TGR) activity helps the parasites to survive in the ae
Schistosomiasis is still a major tropical,parasitic disease that affects millions of people and animals worldwide.The lack of effective vaccine and reliable diagnostic methods make this disease diffic
The excretory/secretory (ES) proteins ofschistosomes play important roles in modulating host immune systems and are regarded as potential vaccine candidates and drug targets.Protein disulfide isomeras