Corn leaf spot disease: Maizes can develop from seedlings to adult plants. The pathogens use mycelium or conidia to overwhelm the pathogen's remnants, and produce a large number of conidia in May and June when the temperature of the leek is relatively suitable. The contaminants are transmitted by airflow or rainwater. From July to August, when the temperature reaches 25°C, it is most suitable for the epidemic. During this period, if the rainfall is high, the humidity is high, and the disease will occur seriously.
Control methods: Select disease-resistant varieties, pay attention to the rational mix of varieties to avoid the simplification of varieties. The specific strategies of cultivation, disease prevention and chemical control can refer to the prevention and treatment of corn leaf spot.
Ultrasonic water meter is a new type of water flow meter, by detecting the ultrasonic beam propagation in the water and tide by speed changes generated, which analyze and process water flow rate. Ultrasonic water meter is the use of ultrasonic time difference principle, the use of industrial grade.
Ultrasonic Water Meters have the following features: low initial flow rate, wider measuring range, higher measuring accuracy, good stability and no need to set parameters installed at any angle. No moving parts inside the unimpeded flow element, is not affected by impurities in the water, and long service life.
The ultrasonic water meters have excellent low flow detection capabilities, which can solve the problem of many traditional water meters, more suitable for water gradient charge, more for conservation and rational use of water resources and have broad market prospects and use,is a good product to as home water meter.
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