Mix crop vegetables in back yard gardening, practical experience~

In commercial farming, intercropping, mixed cropping and rotate cropping are very important technologies. In our back yard gardening, with multiple varieties in small area, we more or less already are using these three technologies, but in a much more flexible way.
The easiest way is to mix whatever you have in a random way wherever you have. Everybody can do this.
But if we put a little thought when planning our vegetables and consider both vegetables habit and growing conditions, by mixing our vegetables properly, we can maximize usage of our space, increase productivity, reduce bugs and disease problem, get consistent and continuous produce and so on.