1. Start with yourself first. We should form the good habit of saving food in our life. Don't waste money on meals at ordinary times, and you can't refuse to pack and take away endless things because of face. On the contrary, wasting food is the most shameful behavior.

2. Students majoring in agronomy should first learn their own professional knowledge. When they reach a certain knowledge reserve, they can study how to achieve higher output and solve the food problem from the root, which also solves the food problem of all mankind.

3. We can pay more attention to whether there is waste in school canteens and nearby restaurants, or we can do a questionnaire survey to understand the severity of waste, so as to analyze what causes waste. If possible, some meals taste bad and are difficult to swallow, resulting in waste; Some people don't know the amount of food in advance, which leads to more waste. Analyze the reasons and put forward reasonable suggestions to the people around you according to the specific reasons. This can also reduce waste.

4. Schools can offer some related practical courses, so that students can really feel the hardship of growing food. Only by personally experiencing the hard-won food can we cherish it more. You can also organize some food-themed activities to remind students that the food problem has always existed, so that students can consciously develop a good habit of saving.

5. In their spare time, college students can organize or join some voluntary organizations in the society to protect food, become volunteers, publicize the food problem more, and let the public form a good habit of saving together.