How is it possible for countries with lower agricultural densities not to have problems feeding their population ?

Strengthening the community by building the core infrastructure necessary for production which will be the foundation leading to self-sufficiency in the long run The key infrastructure is the water source because it is an important factor that will allow most farmers who depend on rainwater to have the opportunity to produce all year round. This is a critical condition that will make the community self-reliant in terms of food to a certain extent. and when the community is strong and ready It might be building other infrastructures. that is necessary to raise the income of the community, such as transportation routes, etc., which is developed in a manner that aims to prepare the community to be in contact with the outside world in this step is called explosion from within

can you explain it better