Avoid pesticide application during rice flowering

When the rice is flowering, the husk is opened, and the flower is stretched to extend the pollen out of the hull. If the drug is applied at this time, the liquid can easily enter the flower, hurt or kill the pollen, anther, ovary, etc., and the liquid will Pollen rushes down, which affects pollination, resulting in an increase in the rate of rice imperfections, and the husk is brown, which severely reduces rice production. During the flowering period of rice, the flowering period should be avoided from 9:00 am to 3:00 pm.
(Source: Jiangsu Agricultural Science and Technology News

Ball Cock

A ballcock (also balltap or float valve) is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow and (in the event of low water pressure) backflow. The modern ballcock was invented by José Antonio de Alzate y Ramírez, a Mexican priest and scientist, who described the device in 1790 in the Gaceta de Literatura Méxicana.[1] It consists of a valve connected to a hollow sealed float by means of a lever, mounted near the top of the tank. The float is often ball-shaped, hence the name ballcock. The valve is connected to the incoming water supply, and is opened and closed by the lever which has the float mounted on the end. When the water level rises, the float rises with it; once it rises to a pre-set level, the mechanism forces the lever to close the valve and shut off the water flow. This is an example of negative feedback and of proportional control.

Ball Cock, Brass Ball Bibcock, Ballcock Valve, Toilet Ballcock Valve

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