The total output value of lotus root and loach per mu is 6,480 yuan, and after deducting costs, the profit is 4,100 yuan.
Generally around 3,000 yuan to 5,000 yuan. The price of lotus root is based on the current supply and demand relationship in the production market. If the supply exceeds demand, the market price will definitely fall; if the supply exceeds demand, the market price will rise; the market price is determined based on production. The output of lotus root per mu is 1,500 kilograms, priced at 1 or 2 yuan per kilogram, and the output value is 1,800 yuan. The output of loach per mu is 180 kilograms, 26 yuan per kilogram, and the output value is 4,680 yuan. The total output value of lotus root and loach per mu is 6,480 yuan. After deducting costs, the profit is 4,100 yuan. In the first quarter, the yield per mu of lotus root was 750 kilograms, with an output value of 3,000 yuan. In the second quarter, the yield per mu of lotus root was 450 kilograms, with an output value of 1,800 yuan. The total output value of lotus root in the two seasons is 4,800 yuan per mu. After deducting costs, the average profit per mu is 3,700 yuan. This model requires less investment and higher benefits.