1. Soil preparation and fertilization: sweet beans should not be continuously planted with legumes as far as possible, and the rotation is usually 3-4 years. Before sowing, the soil should be deeply ploughed, and combined with autumn tillage, 3-5 cubic meters of high-quality decomposed organic fertilizer, 25 kilograms of calcium superphosphate, 0/5-20 kilograms of ammonium sulfate 15-20 kilograms of potassium sulfate 15-20 kilograms should be applied to 67 square meters, and the above fertilizers should be fully mixed before application. After the soil is thawed in spring, plow and rake the soil. If the soil moisture is insufficient, burn the soil first, and then prepare the soil to ensure the water needed for seedling emergence after sowing. Single row planting is adopted to make the field ventilated and transparent, and the pods are bright in color. When making the border, the line spacing should be100-10cm, and the height should not exceed15cm.

2. Sowing: The seeds sown in the middle and late March (March 15-25) are full and free from pests and diseases. Hole spacing 13- 15 cm, hole depth of 3 cm, 2-3 sweet beans per hole, and seed dosage of 3-3.5kg/667m2; 3-4 peas, 5 kg /667 square meters. If the soil is dry, it is necessary to water and sow it, and the thickness of the soil layer is 2-3 cm. After sowing, it can be suppressed.

3. Field management: seedling stage. Generally drought-tolerant, with less water demand, water 1-2 times as appropriate; If the base fertilizer is insufficient and the seedling condition is weak, a small amount of nitrogen fertilizer can be topdressing, and urea 15-20kg can be applied in 667m2. In the flowering and fruiting period, it is necessary to increase the amount of water and fertilizer and keep the soil moist at all times. In case of rainstorm, drain water in time to avoid root rot. During this period, according to the actual situation, topdressing nitrogen fertilizer 1-2 times, spraying potassium dihydrogen phosphate 1-2 times, and cooperating with pesticide application to improve yield and quality.

4. Tea beetle: When the seedlings grow to 20-30cm, tea beetle should be made in time. The frame height should be more than 2m. Use thick bamboo poles or wooden poles as the frame material, insert one every 2-3m, and then pull the net line along the growth level of vines to make the vines climb upwards, keep the rows ventilated and light-permeable, and make the sweet beans grow normally. Note that the stent must be firmly inserted, and the stent cannot be inverted during growth.

5. Harvest: The harvest period of sweet beans in our county is from the end of May to the beginning of June. Recycling standards. Generally, after flowering 12- 15 days, the elongation of tender pods stopped, but the seeds just started to develop, and the pods were semi-drum and bright green, so they should be harvested in time. Be sure to pick it clean when harvesting, otherwise it will affect the growth of tender pods on it.