This autumn, the appropriate planting area for wheat in Shandong Province has been expanded, the sowing quality is higher, and the seedling condition is generally better. However, according to the Shandong Provincial Center for Agricultural Information, there are some problems that cannot be ignored: First, some of the rainfall in the early period was relatively small, and there was no land for fleas at the time of planting. At present, the public opinion is poor and it is not suitable for the emergence of wheat. Growth, if the recent drought can not be lifted, will further affect the normal growth of wheat and safe winter. Second, part of the plot was not enough and the robbers sow the wheat fields and sow the "Mongolian water" plots. The emergence of wheat is not uniform, and the lack of seedlings is severe. Third, the broadcast volume of some plots is too large, the sowing date is early, and there is a long trend. Fourthly, some of the later plots were built later, the sowing date of wheat was late, and the area of ​​late buckwheat expanded. Fifth, some plots of underground pests are heavier and there are more weeds. For the current situation of wheat seedlings, the main direction of pre-winter management is to promote root growth, promote weak growth, promote strong seedlings, and maintain seedlings safely over winter on the basis of drought and seedling protection. 2019-nCoV Nucleic Acid Test Kit 2019-Ncov Nucleic Acid Test Kit (Pcr-Fluorescence Probe Method),Specimen Release Agent,2019-Ncov/Iav/Ibv Nucleic Acid Test Kit ,2019-Ncov/Iav/Ibv Nucleic Acid Guangdong Hecin Scientific, Inc. , https://www.hecinscientific.com