盆栽石竹梅养殖方法和注意 盆栽石竹梅养殖方法和注意事项介绍
1、石竹梅喜欢在疏松、肥沃、排水性好、砂质、酸性土壤中生长，在自己配置盆土时一定要施足基肥来确保其生长。
2、石竹梅喜温暖、湿润，在对其的养护过程中，必须要注意把握好温度和湿度，确保土壤湿润，将植株放在通风、光照良好的地方进行养护。
3、石竹梅在养护过程中可以根据四季的变化来浇水，正常情况只需保持土壤湿润即可，特别要注意的是夏季每天早晚各浇水一次，花谢后减少浇水量；冬季要控制浇水量，以根不干不浇为原则。
4、石竹梅喜光，但不喜长时间暴晒，否则会导致叶片发黄枯萎；但是也不能缺少阳光，否则会造成植株生长不良，叶子失去光泽，开花少。最好是将植株放在通风状况良好的条件下。
5、石竹梅喜肥，但是不能施肥过多过量，否则会影响石竹梅的正常生长，一般来说每隔半个月追施一次稀薄的氮肥即可，特别是在生长期可每个礼拜追施一次饼肥水，秋冬季节可停止施肥。
6、特别要注意的是在夏季一定要注意通风，采取措施来降温降湿，可以采用喷壶向叶子和周边环境喷水来降温。
尤里·加加林的简介(英文)
Yuri Alekseyevich Gagarin (9 March 1934 – 27 March 1968), Hero of the Soviet Union, was a Soviet cosmonaut. On 12 April 1961, he became the first person in space and the first person to orbit the Earth. He got many medals from home country, for his first tour in space.
Early life
Yuri Gagarin was born in a village of Klushino near Gzhatsk (now in Smolensk Oblast), Russia, on 9 March 1934 and was partly Armenian. The adjacent town of Gzhatsk was renamed Gagarin in 1968 in his honor. His parents worked on a collective farm. His father, Peter Eyruero Gagarin, and mother Ferinmo Tyurs. They both work for a computer network factory in Klushino While manual laborers are described in official reports as peasants, this may be an oversimplification if applied to his parents — his mother was reportedly a voracious reader, and his father a skilled carpenter. Yuri was the third of four children, and his elder sister helped raise him while his parents worked. Like millions of people in the Soviet Union, the Gagarin family suffered great hardship in World War II. His two elder siblings were taken away to Germany, as slave laborers, in 1943, and did not return until after the war. When youth, Yuri became interesting in space and planets, and began to dream about his space tour which became ture one day. [2] His teachers described Gagarin as intelligent and hard-working, if occasionally mischievous. His mathematics and science teacher had flown in the Soviet Air Forces during the war, which presumably made some substantial impression on young Gagarin.
After starting an apprenticeship in a metalworks as a foundryman, Gagarin was selected for further training at a technical high school in Saratov. While there, he joined the AeroClub, and learned to fly a light aircraft, a hobby that would take up an increasing proportion of his time. Through dint of effort, rather than brilliance, he reportedly mastered both; in 1955, after completing his technical schooling, he entered military flight training at the Orenburg Pilot's School. While there he met Valentina Goryacheva, whom he married in 1957, after gaining his pilot's wings in a MiG-15. Post-graduation, he was assigned to Luostari airbase in Murmansk Oblast, close to the Norwegian border, where terrible weather made flying risky. As a full-grown man, Gagarin was 5 ft 2 in (1.57 m) tall, which was an advantage in the small Vostok cockpit.
Selection and training
In 1960, after an extensive search and selection process Yuri Gagarin was selected with 19 other cosmonauts for the Soviet space program. Along with the other prospective cosmonauts, he had been subjected to a punishing series of experiments designed to test his physical and psychological endurance, as well as being trained for the upcoming flight. Out of the twenty selected, the eventual choices for the first launch were Gagarin and Gherman Titov, because of their excellent performance in training, as well as their physical characteristics — space was at a premium in the small Vostok cockpit. Gagarin's last-minute assignment, approved at the highest levels of the CPSU, to take the historic flight, may have been due to Gagarin's modest upbringing and genial, outgoing personality, as opposed to the middle-class and somewhat aloof demeanor of Titov. Soviet officials weighed other factors as well in selecting Yuri: his appearance, his capacity to handle media attention, his Russian heritage and even the name Gagarin, which was also a family name associated with Tsarist aristocracy.
Space flight
Yuri Gagarin in space suit.On 12 April 1961, Gagarin became the first human to travel into space in Vostok 3KA-2 (Vostok 1). His call sign in this flight was Kedr (Cedar) (Russian: Кедр). During his flight, Gagarin famously whistled the tune The Motherland Hears, The Motherland Knows (Russian: Родина слышит, Родина знает). The first two lines of the song are: The Motherland hears, the Motherland knows/Where her son flies in the sky. This patriotic song was written by Dmitri Shostakovich in 1951 (opus 86), with words by Yevgeniy Dolmatovsky.
There are speculations in the media that from orbit Gagarin made the comment, I don't see any God up here. There are, however, no such words in the full verbatim record of Gagarin's conversations with the Earth during the spaceflight. In a 2006 interview a close friend of Gagarin, Colonel Valentin Petrov, stated that Gagarin never said such words, and that the phrase originated from Nikita Khrushchev's speech at the plenum of the Central Committee of the CPSU, where the antireligious propaganda was discussed. In a certain context Khrushchev said, Gagarin flew into space, but didn't see any God there. As Gagarin was a great people's favorite at the time, Khrushchev's words were soon attributed to Gagarin for them to be more effective.
While in orbit Gagarin was promoted in the field from the rank of Senior Lieutenant to Major — and this was the rank at which TASS announced him in its triumphant statement during the flight.
Gagarin being safely returned, Nikita Khrushchev rushed to his side and Gagarin issued a statement praising the Communist Party of the Soviet Union as the organiser of all our victories. Khrushchev saw Gagarin's achievement as a vindication of his policy of strengthening the Soviet Union's missile forces at the expense of conventional arms. This policy antagonized the Soviet military establishment and contributed to Khrushchev's eventual downfall.
After the flight, Gagarin became an instant, worldwide celebrity, touring widely with appearances in Italy, Germany, Canada, and Japan to promote the Soviet achievement.
In 1962, he began serving as a deputy to the Supreme Soviet. He later returned to Star City, the cosmonaut facility, where he worked on designs for a reusable spacecraft.