The 57-year-old uncle built an "aerial vegetable garden" on the roof, with an annual output of 1000 kilograms. How did he do it?

For He Jianhua, the most relaxing time of the day is to come to the roof of his community, pick the melons and fruits he planted, prune the flowering branches and clean up the fruit and leaf garbage. When finished, you can pick a peach from the tree, wash it and eat it. There are flowers, vegetables and fruits, which are especially suitable for tall buildings surrounded by cities. In spring and summer, it's like a Little Paradise. He Jianhua sat in a chair and looked at her mobile phone leisurely, looking at a third of my carefully cared-for land. No matter how complicated the process is, I think it is worth it.

He Jianhua is 57 years old and lives in Xi 'an. In 2009, the roof of He Jianhua was seriously leaking. After consulting the property, he decided to repair the roof at his own expense. At present, the roof has been repaired three times, and the cost is about 40 thousand yuan. After the maintenance, He Jianhua felt that the roof was bare and wanted to do something to protect the roof and reduce its temperature. After consulting with the residential property, he started the roof greening project.

So He Jianhua began to try to grow some vegetables and flowers. Home cooking, such as tomatoes, cucumbers, peppers and eggplant. On 20 15, He Jianhua bought a shed and put it on the roof. In winter, he planted some strawberries and vegetables in the greenhouse, which were fresh and convenient. Slowly, He Jianhua will grow 30 kinds of vegetables every year, and you can eat your own vegetables and fruits all year round. He Jianhua said, "At the peak of planting, the annual output exceeded 1000 kg. Vegetables are usually eaten too much. We will give them to our neighbors. "

[k0] said that I used hydroponics when I first started growing vegetables. After years of practice, I found that vegetables grow well. Therefore, He Jianhua applied for a patent for his own cultivation method. In the greenhouse, He Jianhua carried out three-dimensional hydroponics, planted three layers in total, and tried to plant some rice on the upper two layers. Fortunately, the planting was successful.

Now all kinds of vegetables and fruits are planted on the roof, such as peppers and vegetables. He Jianhua said that he has always insisted on soilless culture, which can save about 80% soil than traditional soil culture, so it has no influence on the weight of the roof. In addition, he also adopted highly automated equipment, which can automatically replenish water, connect water pipes and increase liquid level switches to form a water supply system and recover water resources. It can not only save water resources, but also consume too much manpower and material resources.

"After growing vegetables on the roof, my biggest feeling is cool. Before planting vegetables, the roof temperature in Xi 'an in summer was about 60 degrees. When the weather is hot, it is best when the vegetation grows most vigorously, and the shading effect is particularly good, and summer is not as hot as before. " He Jianhua said happily.

In addition, He Jianhua's family are very supportive of his green roof, and owners and community members often visit it.

"I am a lazy person." This is what He Jianhua always said. I have never lived in the countryside or been engaged in agriculture, but He Jianhua has an "agricultural complex" and likes to grow his own fruits and vegetables. I find it very interesting. Regarding his own roof planting method, He Jianhua claimed that if there are various conditions, such as growing vegetables, everyone can try. It has great promotion value and is also beneficial to the country and the people.