What is the net profit per mu of potatoes?

The yield per mu of potatoes is about 3,000 kg, the seed needs 150 kg *5 yuan/kg =750 yuan, the fertilizer needs about 300 yuan, and other agricultural materials, 200 yuan, are invested 1250 yuan. If it is 1.0 yuan/kg, the net profit per mu is about 1.70 yuan.

Potatoes need a lot of water from sowing to growth and finally to maturity. If potatoes want to grow well, they must keep enough water in the soil. Basically, the water content in the soil is 60%. After planting potatoes, water the fields. If the weather is dry and the precipitation is too little after seedling raising, be sure to water the potatoes every day, because the seedling stage is the most important stage and the stage with the greatest water demand, so be sure to ensure sufficient water.

Extended data:

Potatoes actually require a lot of fertilizer. Generally, the yield of potatoes is not low, so we must supply enough nutrition. When the seedlings grow, you can apply seedling-promoting fertilizer to improve the growth rate. After emergence 15 days, intertillage was carried out and fertilizer was mixed with soil. Wait until the buds are produced, and then carry out the second intertillage. When applying fertilizer, don't let the fertilizer touch the stems and leaves, otherwise it will burn.

It has always been an important task to prevent potatoes from getting sick and suffering from pests. If it is not done well, the quality and yield of potatoes will be reduced. The common disease of potato is Fusarium wilt or dry rot. In order to prevent these, some measures should be taken in advance. When choosing varieties, we must choose good varieties that are disease-free. And it is best to advance the sowing time. If plants are found to be sick, they should be treated in time to prevent the virus from continuing to spread and causing greater harm. If there are few diseased plants, you can also pick these plants and remove the source of the disease. It is best to spray the medicine once a week, and you can basically recover after spraying for one month.