Watermelon fertilization seven bogey

One should not apply a large amount of nitrogen fertilizer. Watermelon fertilization is most concerned with the combination of nitrogen, phosphorus and potassium. If a large amount of nitrogen fertilizer is applied alone, the plant is very easy to grow, which is not conducive to flowering and melon development. Practice has shown that the nitrogen, phosphorus and potassium in the seedling stage should be 3.8:1:2.8, the extension period is 3.6:1:1.7, and the growth period of the melon is 3.5:1:4.6.

Second, avoid applying chlorine-containing fertilizer. Watermelon belongs to the avoidance of chlorine crops. The application of chlorine-containing fertilizers will affect the accumulation of sugar and make the taste of the melons lighter.

Three bogey excessive application of human excrement. Excessive human excrement can easily cause the plant to grow long, making it difficult to sit on the melon, and the melon skin is thick and tastes sour.

Four bogey soil layer fertilization. Watermelon top dressing should pay attention to deep application, and timely cover soil after application, especially nitrogen fertilizer. If applied, nitrogen is easy to volatilize to produce ammonia gas, which harms the leaves and reduces fertilizer efficiency.

Five bogey rainy weather fertilization. In the rainy weather, the air humidity is high, and the soil moisture content is high. At this time, fertilization is not only easy to lose the fertilizer, but also easily causes the watermelon to grow.

Six bogey fertilization sites are too close to the roots. The fertilization site of watermelon is generally about 10 cm away from the main root. It is too close to burn roots.

Seven bogey when the drought is topdressing. The weather is dry and the soil moisture content is low. At this time, the application of chemical fertilizer will cause the cytoplasmic solution of the root cells to penetrate outward, causing the plant to be physiologically dehydrated and die.
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Hitachi has been developing and manufacturing elevators and escalators for about 90 years. Social demands on elevators and escalators changed dramatically over time: faster, larger, and barrier-free and required.

History of Hitachi's Elevator and Escalator Business

  • 1924Lift manufacturing at the Kameido plant
  • 1932First elevator delivered (to Tokyo Electric Power)
  • 1937First escalator delivered (to Osaka Railway Department Store)
  • 1956Hitachi Building Services Co., Ltd. founded (currently known as Hitachi Building Systems Co., Ltd.)
  • 1966Hitachi Elevator Engineering Co ., (Hong Kong) Ltd. founded in Hong Kong
  • 1967Construction of an elevator research tower in the Mito plant completed (90m in height)
  • 1968300m ⁄ minute ultra high speed elevator delivered to the Kasumigaseki Building, Japan's first skyscraper
  • 1972Hitachi Elevator Engineering (Singapore) Pte. Ltd. founded in Singapore
  • 1974Delivery of 540m ⁄ minute elevators to skyscrapers in Shinjuku
  • 1987Hitachi Mito Engineering Co., Ltd. founded
  • 1991Siam-Hitachi Elevator Co., Ltd. Founded in Thailand
  • 1998Three affiliated companies in China merged to found Guangzhou Hitachi Elevator Co., Ltd.
  • 2003Opened Hitachi Building Solution Lab
  • 2007Guangzhou Hitachi Elevator Co., Ltd. renamed to Hitachi Elevator (China) Co., Ltd.
  • 2008Hitachi Lift India Pvt. Ltd. foundedDelivered the world's highest class ultra fast double deck elevators to the Shanghai World Financial Center
  • 2009Introduction of the Company systems leads to the establishment of the Urban Planning and Development Systems Company
  • 2010Completed elevator research tower [G1TOWER" (213m in height) for Mito WorksFounded Hitachi Elevator Asia Pte. Ltd. as a general elevators and escalators business company for the Southeast Asia, India, and Middle East regionsCompleted elevator research tower (172m in height) for Hitachi Elevator (Shanghai) Co. Ltd.
  • 2011Founded Hitachi Elevator Philippines CorporationDelivered 600m ⁄ minute elevators to the Al Hamra Mixed-Use Complex in Kuwait.


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