Tian Yan cultivation technology
I. Varieties of early maturing species include flower buds, Elian No. 1 and No. 3, mid-to-late-maturing varieties include Meirenhong, Dahonghong and Elian No. 2. The above varieties are all suitable for local planting. When the seeds are selected and planted, the seedlings with no pollution or disease spots should be selected and the buds should be intact. Second, cultivation technology 1, selection, site preparation Shiji Fei. Putian should choose clay loam soil blocks with good water retention, good lifting water conditions, and high organic matter content. Combining farmland with 2000-3000 kg of organic fertilizer per acre, 30 kg of compound fertilizer, the depth of cultivation should not exceed 20 cm, and the soil preparation should be done with flattened soil and sufficient fat. 2, planting. Every year in late April is the best time for local planting, greenhouse cultivation can be advanced to early April. The amount of seed per mu is 400-500 pounds, and the row spacing is 0.7*1.5m. At the time of planting, the depth of the seed buds should be inserted 10-12cm deep into the soil, the buds should be parallel to the soil surface, and the joints should be exposed 2-3cm above the ground. Field buds should be planted around the field in order to prevent the emergence of field plots. In the field, cross-planting is used in the wrong way. The bud head should not be directed in only one direction to facilitate the full use of field space. Third, management technology 1, water management. The principle of water layer management is shallow-deep-light, that is, a shallow water layer of 2-3 cm in the initial stage of planting, until about the first long leaf growth period around January 20 in January, and a water depth of 15 in July-August. -20cm, if there is a storm, you can short-term irrigation deep water 50-80ccm. In the later stage of growth, only a shallow water layer of 7-8cm is required to pass through shallow water for the winter. 2, top dressing. During the growing period, a total of top-dressing three times was performed. On the first leaf stage, around May 20, 2000-3000 pounds of human excreta and 10-15 pounds of urea were applied. Green manure may be applied at this time. The second time was from June 20 to early July, with 40 kg of urea per mu and 60 kg of compound fertilizer. At this time, be careful not to put a foot on the taro when you are in the field, and the fertilizer cannot be applied to the leaves. The third time is July 15-20, to see the growth situation, can be appropriate fertilization, such as poor growth, then apply 10-15 pounds of urea per mu, compound fertilizer 40 pounds, superphosphate 40 pounds, 1000 pounds of vegetation ash. 3, pests and diseases. The fieldworm has fewer pests and diseases, and it can only be found in the fields of old crops. In general, there are locusts, Spodoptera litura, edible root worm, spoilage disease, virus disease, brown spot disease and so on. The control methods are the same as those for vegetable fields, except that additional pesticide additives (washing powder, detergent) are required. Fourth, harvesting and harvesting depends on market conditions, generally after the end of August can be harvested. China Agricultural Network Editor