1. Prepare a container first, and prepare a large container, preferably made of ceramic or cement. Don't choose plastic, because plastic containers have a long life, and aging plastic will release harmful substances. Next, it is the choice of floating materials. It is best to weave a fence net with bamboo, so as not to soak on the water surface, but also to fix the roots of water spinach. 2. Prepare sludge. Put a lot of sludge in the big water tank, and pay attention to the selected sludge, which is beneficial to the growth of water spinach. Then pour a lot of water into the water tank to ensure that the water content is at least above silt 10 cm. 3. Water spinach Next, buy some water spinach seedlings and remove all the leaves of the water spinach seedlings, leaving only two leaves. The prepared floating material is put into a large water tank, and the treated water spinach seedlings are put into the gaps of the floating material, so that the three nodes of the vegetable seedlings are exposed out of the water. In this way, water spinach was planted. 4. The cultivation method of water spinach should pay attention to management. Generally, after planting for one week, topdressing should be done, and the waste or vegetables used for flowers should be put into the water tank. You can buy it from agricultural distributors, or you can put some plant ash yourself. Generally, topdressing is performed once after harvest, and Woye water-soluble fertilizer series is performed once.