From the news below, I can see that it costs 50,000 yuan to build a standard one. For your reference: 38-year-old Han Fubo is a large shantytown owner in the vegetable community of Baoshi Village, Baoshi Town, Tuquan County. Before 2008, he earned nearly 10,000 yuan a year from growing field vegetables. In early April this year, the party committee and government of the town began to invest 2.08 million yuan to build an off-season vegetable community in Baoshi Town covering an area of ??35,000 square meters. Due to preferential policies, Han Fubo was the first to sign up. During the construction of the community, the town party committee and government provided electricity and well drilling for 23 large shantytowns free of charge, and provided each greenhouse with a subsidy of nearly 6,000 yuan.

In addition, the Baoshi Town Party Committee and Government also helped 23 large shantytown households coordinate loans of 690,000 yuan. Han Fubo invested another 100,000 yuan to build two standard off-season vegetable greenhouses. He earned nearly 3,000 yuan from planting the first crop of vegetables in early October. Recently, he is also planning to plant a crop of coriander. According to the current market price, he could earn at least 3,000 yuan from a crop of coriander a year ago. With his rich experience in growing melons, Han Fubo is planning to plant all the cantaloupes in two greenhouses after the Spring Festival, in time for the market in early April next year, and is expected to increase his income by at least 14,000 yuan. At present, the vegetables in the 30 greenhouses in the off-season vegetable community in Baoshi Town, Tuquan County are growing well, and it is expected that the annual income will increase by more than 600,000 yuan.