Assuming that only one mu of land is planted, 5,000 Jin of vegetables can be harvested in the first phase, and the purchase price per Jin is 2 yuan, then the total annual transaction volume is 30,000 yuan according to the calculation of three seasons. Excluding the cost, the annual profit should be around1.8-20,000.
Generally, the skeleton of vegetable greenhouse needs about 5500 yuan per mu. In order to save cost and prolong the service time of greenhouse, the more economical way to build greenhouse is to use magnesite greenhouse skeleton and plastic paper, which not only reduces the construction cost, but also facilitates daily use and maintenance. Such a greenhouse can be used for five years, and only plastic paper needs to be replaced every year. The annual cost of vegetable seedlings, pesticides and fertilizers per mu is around 700 yuan, and the land lease fee is around 800 yuan every year.
Combined with the above calculation, the cost of vegetable planting in greenhouse is about 7000 yuan per mu, and the average annual cost of vegetable greenhouse is about 2500 yuan per mu according to the five-year use period.
The profit of vegetable planting in greenhouse can reach 150%-250%, and vegetables can be produced for 2-3 seasons every year. If ordinary vegetables are planted, the vegetables in 1-2 season can basically recover the cost of early construction and greenhouse vegetable management, so that they can make a profit in the first year, with an average profit of 100%- 150.
Extended data:
Greenhouse vegetable planting method
1. Don't apply a lot of immature cake fertilizer to greenhouse vegetables. Because the ratio of carbon to nitrogen of cake fertilizer is small, it decomposes quickly, and it is easy to produce high temperature and high concentration of ammonia and organic acid locally, which is easy to burn roots. The cake fertilizer should be broken, soaked in human feces and urine for about 3 weeks, and then fermented at high temperature before use.
Vegetables in greenhouse should not be fertilized under dry conditions. Vegetables are water-loving crops. When the soil is dry, fertilization not only fails to exert its fertilizer efficiency, but also makes the concentration of soil solution suddenly increase, which is easy to burn the roots of vegetables. Therefore, vegetable fertilization should be combined with irrigation, and furrow application should be implemented. Before irrigation, fertilizer should be buried or topdressing should be carried out along the water.
3. It is not suitable to apply more phosphate fertilizer and zinc fertilizer in vegetable greenhouse in winter. When vegetables are deficient in zinc, 0.05%-0.2% zinc sulfate solution and new high-fat film can be sprayed on the leaves.
Be careful not to apply iron fertilizer to the soil. Because iron is easily fixed by soil, it is transformed into insoluble compounds and loses its fertilizer efficiency. Iron is not easy to flow on leaves, so foliar spraying should be adopted, and 0. 1%-0.3% ferrous sulfate solution+new high-fat film should be evenly sprayed on vegetable leaves.
5. Don't directly apply rare earth micro-fertilizer to the soil in the vegetable greenhouse in winter. Spraying 0.05%-0.07% rare earth micro-fertilizer solution and new high-fat film on vegetable leaves.