1, planting soil: before planting black beans at home, you need to pay attention to the choice of soil. Humus soil and garden soil with rich nutrition and good drainage can be dug from gardens or vegetable gardens, and special coconut bricks can also be purchased from the Internet. Before planting, it is necessary to dry and sterilize the garden soil and apply base fertilizer to coconut bricks.

2. Sowing method: When sowing black beans, you need to soak the seeds in clear water to remove the withered seeds floating on the water surface, then take out the black bean seeds that have sunk in the water, drain the water and plant them directly in the soil. In the process of planting, the spacing should be controlled at about 20 cm.

3. Replenish water: After planting, it is necessary to replenish water for black beans regularly. When black bean seeds are not germinated, they can be sprayed with water once a day to soak all the soil and help the seeds germinate. After the black beans germinate, they can be watered once every two to three days to help the buds grow better.

4. Provide light: when black beans just grow buds, they can be provided with weak scattered light to prevent the plants from being burned. When black beans are in seedling stage, they can be provided with sufficient scattered light to help the seedlings grow leaves. When black beans are in growth stage, they need to be provided with full sunlight to allow the plants to store enough nutrients.