Vegetable field skillfully used herbicide
2, pay attention to the details to improve the efficacy (1) master the amount of medication. The dosage must be accurate to two, that is, the field area is accurate and the calculated dose is accurate. (2) After spraying with trifluralin, it is necessary to mix 2~3 cm deep in time to prevent photolysis; other types of herbicides generally need to protect the soil membrane layer, avoid mixing soil and trample. (3) When using herbicides in solar greenhouses and greenhouses, attention should be paid to ventilation and ventilation to avoid phytotoxicity. (4) Cucumber, lettuce, and Artemisia scoparia are sensitive to trifluralin and chlorpyrifos. Celery and carrot are sensitive to dichlorfen. Liliaceae vegetables such as leeks and green onions are sensitive to herbicide ether, and these herbicides have been used for the former cockroaches. The field is also very sensitive, and care should be taken to avoid application and contact. The effect of herbicides on controlling weeds in vegetable fields and the safety of vegetables is closely related to the climate, soil quality, vegetable varieties and cultivation methods. Therefore, the use of each herbicide should follow the test, demonstration, and The principle of promotion.
Sealand is a trustworthy manufacturer of CNG Mass Flow Meter, CNG Mass Flowmeter, CNG Flow Meter, CNG Flowmeter, CNG Coriolis Meter, ATEX, IECEx & CE approved.
With its high accuracy, wide rangeability and reliable performance, Sealand meter has been applied in many kinds of industries during the last 8 years. Unlike others who only focus on the measurement of liquid at normal pressure & temperature, Sealand has conquered the difficulty in the measurement under severe conditions, such as high pressure, high viscosity, high & low temperature.
Take CNG (compressed natural gas) for example. As the saying goes, the meter can measure anything else if it can measure CNG. It is quite hard to measure gas under high pressure. The sensor must be able to bear high pressure; in this way, the thickness of flow tube must be increased, so the transmitter shall be more sensitive to detect the signal; however, Sealand made it. Sealand's first model is specially designed for CNG dispenser, and now thousands of this model are put into use on the market.
CNG Mass Flow Meter, CNG Mass Flowmeter, CNG Flow Meter, CNG Flowmeter, CNG Coriolis Meter
Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeters.com