How can lotus root be planted with high yield?

How can lotus root be planted with high yield? Hope that experienced netizens can help introduce the key points of high yield in planting lotus root, which are listed below for netizens' reference. Main points 1. Select high-quality lotus root varieties: you can choose large purple-red lotus root varieties with 4-5 nodes in the main lotus root. Point 2, disinfect the seed lotus root: choose the main lotus root with strong buds, 2-3 nodes and more than 0.5 kg as seed lotus root, or choose large seed lotus root as seed lotus root. Plant lotus root as early as possible after digging up, and the seed consumption per mu is 300-400 kg. Before planting, the seed lotus root was sprayed with 800-fold solution of 70% methyl topiramate wettable powder for 24 hours, and the solution was basically dry and planted. Main points 3. Treatment of lotus root fields: select fields with convenient drainage and irrigation, stable water level and fertile soil. In spring, 5000 kg of rotten organic fertilizer was applied per mu, and 50 kg of special compound fertilizer and quicklime were applied per mu of lotus root field half a month before planting. Point 4. Select the planting time of lotus root: the planting time of lotus root is suitable in the first and middle of April, with row spacing of 2-2.5 meters and hole spacing of 0.7-1 meters. One main lotus root or two seed lotus roots are planted in each hole. Maintain 3-5 cm water layer in the field after planting, gradually deepen the water layer to 20-30 cm after the emergence of standing leaves, and gradually fall back to 15-20 cm when the leaves appear. Point 5. Topdressing the lotus root field at the right time: topdressing the new lotus root field twice, the first time applying 50 kg ammonium bicarbonate, 25 kg urea, 50 kg special compound fertilizer or compound fertilizer per mu on May 20-30; the second time, 40 kg urea per mu and 50 kg special compound fertilizer per mu in June 20-30. Topdressing the lotus root field for more than 2 years, applying 50 kg urea per mu and 50-75 kg special compound fertilizer per mu before and after May 20. Point 6, timely control of diseases and pests in the lotus root field: pay attention to the control of stiff lotus root and root-eating golden flower insects. Agricultural measures are mainly adopted to control stiff lotus root, such as crop rotation, planting of disease-free field and disease-free lotus root, removal of residual branches and withered leaves in the field after harvest, and appropriate application of phosphorus and potassium fertilizer in the middle and later stage. To control the root-eating golden flower insect, in mid-late May, 100-150 ml per mu of Regent suspension (100 ml of new lotus root field and 150 ml of old lotus root field) was diluted with 1 kg of water, mixed with 10 kg fine soil and spread evenly. Early-maturing lotus root planting techniques weeding methods in lotus root field click to get more lotus root planting techniques click to get more vegetable planting techniques