"The farmer gained insight into the way of overcoming the long fallow period in the farm"
The meaning of this sentence is that <u>the farmer was able to understand the source of the problem in the farm, which will help him to find an effective solution to fight against this problem</u>. The word "fallow" is used to refer to an unsuccessful period of time or, in other words, a period of time in which nothing good is produced. Furthermore, the word "insight" refers to a sudden understanding of a specific problem.
