In February this year, the price of urea began to rise gradually, from 1700- 1800 yuan/ton to 1900-2000 yuan/ton. At that time, it was a period of years ago, some people hoarded goods in advance, and some people wanted to wait until the price of urea fell after the year. After entering March-April, the price of urea not only did not fall, but continued to rise until the end of June. The price has also increased from 1700- 1800 yuan/ton to 2700-2800 yuan/ton, with an increase rate of 1000 yuan/ton.