At present, many farmers still have insufficient knowledge of the scientific use of rice pests and diseases. Once rice is found to have pests and diseases, it is necessary to prevent and control the spraying of large blood. It is not that the concentration and frequency of medications are unscientific. Do not avoid. Here, I briefly introduce the reasons for avoiding the application of rice during flowering:
In general, the flowering of rice has the following habits: the flowering time of early rice is mostly from 8 am to 1 pm, and from 9 to 11 pm is the flowering period; the flowering of late rice is mostly from 9 am to 2 pm, and from 10 to 12 pm Prosperous period. When the rice blossoms, the glume expands and the filaments rapidly elongate, extending the anther out of the glume. At this time the spraying liquid will enter the flower, kill or kill the pollen, anthers, ovary, etc., at the same time the liquid will also fall out of the pollen, seriously affect the pollination, resulting in an increase in the immature rate, the glume turned brown, resulting in reduced yield .
Production should avoid the spraying of rice during the heading and flowering period of the rice. When spraying, be sure to avoid flowering time. After the husk has been closed, it should be carried out after 3:00 pm, and the action should be light and clean. Fold neck.
Ningbo DOKEE Medical Technology Co., Ltd. , https://www.dokeemedical.com