西红柿经济价值较高,市场上竞争力很强。菜农中出现了许多西红柿专业户。如何提高西红柿栽培的经济效益,是专业户最关心的问题。我国北方各省尤其是我内蒙自治区,早春低温干旱,给作物前期生长带来极大威胁。西红柿属高温性蔬菜,喜温喜光。露地栽培虽采取育苗措施,也要等到晚霜过后才 Tomatoes have higher economic value and are highly competitive on the market. There are many tomatoes in vegetable farmers specialized households. How to improve the economic benefits of tomato cultivation is the most concerned about the professional households. The northern provinces of our country, especially the Inner Mongolia Autonomous Region, have a low temperature and drought in early spring, which poses a great threat to the early growth of crops. Tomatoes are high temperature vegetables, like the warmth of light. Although open-field cultivation nursery measures, have to wait until after the night cream