1.注意育苗方法 在露地育苗、人工高温催芽育苗和酿热温床育苗等方法中,只有酿热温床育苗既能利用作物秸秆及猪牛畜粪等发酵产生的热量,又能吸收阳光,提高地温和床温,方法简便易行,经济实用,是我地目前普遍采用的方法。用此方法育苗时,注意先用猪牛粪草在红薯苗床的厢面上平堆纸30厘米厚,再在上面覆盖10厘米的细肥土,才能排种。 1. Pay attention to nursery methods In the open field nursery, artificial germination and seedling hot breeding hotbed breeding methods, only the hot breeding hotbed can both use crop stalks and pig manure and other fermentation heat, but also to absorb sunlight, improve the ground Moderate bed temperature, the method is simple, economical and practical, is currently my commonly used method. In this method nursery, pay attention to the first pig cow dung on the surface of the sweet potato seedbed flat pile of paper 30 cm thick, then covered in 10 cm of fine soil, in order to seeding.