数据库双连接关系插入问题

I have two tables Plants and Information. For every plant there are many information, but for each plant there is a single MainInformation. So there is a one-to-many relationship and a one-to-one relationship between the two. The Information table has a PlantID and the Plants table has a MainInformationID. I want both fields in both tables not to be nulls. But now you can't insert either of the two records into their tables because each one requires their fields not be null, meaning they need the other record to be created first in order to create themselves. Perhaps this is not a good database design and something should be changed? (I am new to databases and entity framework)I have two tables Plants and Information. For e