How to prevent weeds from floating on the water in rice fields

Guangxi, a farmer in yushu city, has been planting rice for 10 years, but there is no good solution to weeds such as chicken feet grass and floating on the water. Many drugs have been used, and the effect is not obvious. Where is the specific medicine? Liu Yachen, an expert on "123 16" and a researcher at the provincial vegetable and flower research institute, said: There is really no specific herbicide for crowfoot grass and floating water at present. Some herbicides kill weeds, which do great harm to rice seedlings and cannot be used. At present, the best way is biological control, which controls weed reproduction by salvaging rice fields and water sources. Fishing in water source area is an effective way to lead prevention and control to the outside.

Paederia japonica has strong reproductive ability and floating ability on water. If not controlled, the water quality will deteriorate and rice seedlings will rot.

Based on. The period from the Spring Festival to Tomb-Sweeping Day is spring. February Qingming Spring has a short neck, which means that beginning of spring Day is before the Spring Festival, and March Spring has a long neck, which means that beginning of spring Day is after the Spring Festival. This year's spring is very short, because it started on the seventeenth day of the twelfth lunar month last year, and it rained on the second day of the first month of this year, half a month ahead of schedule according to the solar terms in normal years, so all the work of farming activities is very destructive, so we must arrange it as soon as possible.