How does purple sweet potato topdress?

    A: After 40 days of planting purple sweet potato, carry out cultivating and chasing potato fertilizer, and apply 20 kg of nitrogen and potassium fertilizer per acre . The fertilization of the potato vine can be carried out with a foliar fertilizer such as 0.2 % potassium dihydrogen phosphate per acre , and sprayed every 7 to 10 days.

In the midsummer, we must control the growth of vines. When the vine grows to 60 cm, spray paclobutrazol or chlormequat in the afternoon. Apply 15% paclobutrazol 30 g per sprayer ( 15 kg) , spray once every 10 days, and spray 2 to 3 times. . In the middle and late period ( August to September ), sweet potato swell can be sprayed 2 to 3 times to promote rapid expansion of tubers. (Li Bo)

 

 

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The RCU is connecting to the server center by TCP/IP and Ethernet protocol, each RCU could is connected to the hotel LAN and has an independent and unique IP address that is compatible with the Ethernet standard.
On the high voltage, there are replay outputs for the electrical equipment, the relays act as the switch and are controlled by the communication board that could receive the instruction from the 12V switches installed in the guest room.
The communication board is the core as the whole RCU like computer`s CPU, it mainly has two functions as below:
Receiving instruction signals from the switches, door plate, and sending signal to the 220V high voltage to turn on/off the lighting fixtures or control the air-conditione

The function of smart RCU as below:With strong stability;Good compatibility; Enhance the quality of hotel services ;Low cost,easy maintenance.

Smart Hotel RCU Control System

Smart Hotel RCU

Smart Hotel RCU,Hotel RCU Show Box,Hotel RCU Guest Room Control System

Shenzhen Zhuohao Intelligent Electronic Development Co., Ltd. , http://www.szactop-smart.com