Technical points of transplanting corn seedlings

1 seedbed preparation. 2 to 3 days before planting seedlings, loose soil and dry land near Honda are used as seedbeds, and then deep-digging and leveling are made to make a 1.3-1.7-meter-wide seedbed. 2 grams of phoxim per square meter to prevent underground pests. 2 nutrition soil preparation. With 30% to 40% of decomposed organic slag, 60% to 70% of fertile fine soils as the substrate, no less than 150 kg of material soil is transplanted per acre of Daejeon, and 1.5 kg of superphosphate and 0.15 kg of urea are added. After mixing evenly, it is advisable to add manure water to “push into a group and touch the ground to disperse”. 3 nursery methods. The soil with high organic matter content, loose alluvial soil, yam xi miao, and purple soil developed in Penglai town can be selected as floppy seedling transplanting technology (100 holes per piece); purple soil developed from yellow soil, red soil and Suining group with heavy soil. Such as using nutrition cup (bag, tube) seedling technology. Pack the prepared nutrient soil into 80% of the nutrition cup or floppy disk and compact it in the seedbed. After sowing 1 or 2 seeds per cup or per hole, cover the seed with the sphagnum and the thickness shall not be less than 1 cm. 4 seedbed management. Prepare a 2-meter-long piece of bamboo on the seedbed to raise the arch, then cover it with a 2-meter-wide agricultural film, compact it with soil, and reduce water loss. The temperature in the film before the needle was controlled below 35°C; after the needle was out, the temperature in the film was controlled below 25°C to prevent burning of the seedlings. If for some reason (drought or heavy rain, etc.) cannot be timely transplanted, the floppy disk or cup must be moved in time to cut off the root seedlings. 5 Transplanting technology. The best transplanting period for corn seedlings is "one leaf and one heart." More than "three leaf one heart" can be used when transplanting 0.1 jin / square meter of urea water added "send marry fertilizer water." According to the planned spacing, grading, orientation, and transplanting were carried out. After the planting, the soil covering the nest should be no less than 3 cm to prevent drought exposure to the fertilizer and affect the root growth.

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