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1 培育壮苗 1.1 春地瓜选无病种薯,先用40%的多菌灵1 000倍液浸种10min,再上苗床(回龙火炕,地热线温床,酿热物温床)控温育苗(保持床温28～35℃,炼苗时25℃左右),育成苗高18cm,每百株500g标准的壮苗。 1.2 夏地瓜当春地瓜栽植换苗后打心,使瓜蔓全部为侧蔓,早期剪的蔓头,5～6叶单株作蔓瓜栽植(直插斜栽),中段蔓剪成三片叶(节)的段(直插平推一把土拖成大窝)栽植。
1 nurturing strong seedlings 1.1 Spring sweet potato disease-free seed selection, first with 40% of the carbendazim 1000 times soaking 10min, and then seedbed (Huilong kang, geothermal hotbed, hot stuffed hotbed) temperature control nursery (keep Bed temperature 28 ~ 35 ℃, refining time when 25 ℃), nursery height 18cm, 500g per 100 standard seedlings. 1.2 when the summer sweet potato melon sweet potatoes planted after transplanting care, so Guaman side of the vine, the early cut Cranium, 5 to 6 leaves for planting monoculture (oblique planting), the middle of the vine cut into three Leaves (section) of the paragraph (straight push an earth into a large nest) planting.