1. Soil preparation sites should be selected for sandy loam with loose soil, deep soil and good drainage. Then, plunge the soil more than 33 cm. Combined with site preparation, per acre, composting or composting 2500-3000 kg, turned into soil as a base fertilizer. Then make a squat, or do not squat, open a drainage ditch planting. 2. The transplanting planted in the autumn of the year was transplanted in the autumn of September to October in the following year, and transplanted in the spring of the year from the early March to the early April. For transplanting in the fall, the seedlings grow well. Before planting, select the strong seedling with a thick middle finger and cut off the slender part of the main root and the lateral root on the main root. According to the line spacing 7050 cm digging points, 20 to 30 meters deep hole, apply 1-2 kilograms of soil miscellaneous fertilizer per hole, and soil and mix well. Then, each seedling was planted with 2 sprouts and 1 strain. Autumn planted soil should be thick, should be 5 to 7 cm higher than the bud, so as to avoid frost damage; spring planting can be suitable shallow cover, so that leaves can be exposed to the ground. In the first year after transplanting rhubarb, soybeans or corn and other crops can be planted between rows. 3. In mid-June, mid-August, and September-October, the cultivators and weeds were planted and weeded once a year for a total of three times. After the number of weeding the same with the autumn planting. The first cultivating and weeding was performed when the seedlings in the middle of April and the middle of April in autumn were planted; the second time in the middle and late June and the third time in the September-October period. In the third year, rhubarb grows robustly and has been sealed. Weeding occurs only once in spring and after weeping in autumn. 4. Top-dressing big-yellow hi fertilizer, we must combine top-dressing and weeding top dressing once. The first and second application of human or animal manure water or cooked cake fat; the third time after the fall of the seedlings in the fall, re-apply soil miscellaneous fertilizer plus fire ash or superphosphate, cover the soil after the application of antifreeze, and irrigated once frozen water . 5. Rhizome rhizomes are grown in rhizomes and grow upward continuously. Therefore, after each cultivating weeding and topdressing, soils should be cultivated around the stem bases in order to grow rhizomes and increase yield. 6. After 3 to 4 years after transplanting rhubarb, it will convulse and bloom in May and June of each year, and it will consume large amounts of nutrients. Therefore, in addition to the remaining land, the flower buds should be destroyed as soon as possible so that the nutrients can concentrate on the growth of underground rhizomes. This is also an increase in production measures. China Agricultural Network Editor
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