The disease is a bacterial disease that mainly damages the leaves, petioles, and young melons, and can be harmed throughout the growing period. The cotyledons in the seedling stage showed water-soaked yellow sag spots. The leaves at the early stage of the leaves were light green and immersed in spo
Due to the low temperature during the winter season, if the goats are given cold water or even chilled water, the sheep are reluctant to drink and the sheep will not be able to drink enough water. This not only slows down the digestive process of the sheep's feed, impedes metabolism in the bod
At present, the lowest temperature period in the year, combined with the fact that there are more rain and snow conditions in winter, frequent cold air activities, and large fluctuations in temperature, which have a great impact on the production of various types of vegetables. In order to ensure