Over the past 20 years, farmers have used outside income to supplement their farming income, making as much as 50 to 60 percent of their total pay.
在过去的20多年中，农民们50%到60%的外出打工收入都用来补贴家中农业生产。
2
To protect their eyesight. Regular breaks, pay attention to supplement of food containing rich vitamin a, often overlooking, and regularly do eye exercises, ensure get adequate sleep.
Nitrogen phosphorus chemical fertilizer combined organic improve yield, more ideal way of fertilizing. But should pay attention to the plain supplement of potassium at the same time.