In the 2~3 leaf stage after the whole seedling, the seedling-fermented garlic is applied with 40~50 rations of decomposed and diluted water, or 20~25 kg of ammonium bicarbonate.
The fertilizer is mainly organic fertilizer. It is used to open shallow gully strips 10 to 15 cm deep between rows of rows. The per mu of pigs and sheep are 1500-2000 kg of fertilizer and 15-20 kg of ammonium bicarbonate, and then cover the soil to prevent fertilizer. Volatile, this fertilizer is generally applied before the "winter solstice".
After returning to the green and spring, enter the rain season, apply about 10 kg of urea per acre, and combine the weeding and shallow soil once after application.
The rapid expansion period and the pumping period of the sputum fat garlic are 7.5 kg of urea per mu or 15 kg of ammonium bicarbonate, which can be applied before and after the “Guyuâ€.
(smart)
Roller shutter door , also known as "shutter door", lots of panel pieces connected together, fixed in the guide rail , take above reel as the center of rotation.
Roller shutter door is used for commercial facades, garages, shopping malls, hospitals, factories and mines and other public places or residential.Electric roller shutter door, especially for large openings, inconvenient to install the ground door , quick opening effect. Such as for the garage door, shopping mall fire shutter door.
Opening methods: Handing driving mode
Rope driving mode
Remote control driving mode
Electric switch driving mode
Roller Shutter Door,Galvanized Roller Shutter Door,Aluminum Roller Shutter Door,Transparent Roller Shutter Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.selfrepairinghighspeeddoor.com