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淮北地区红芋种植每年都占耕地面积的30％－40％左右，除春红芋施用少量底肥外，大部分麦茬夏红芋，在栽插时，因时间紧，温度高，都是抢墒扶垄，白茬栽插。在生长期间，绝大部分没有追肥习惯，任其生长，严重限制了产量的提高。根据多年实践经验，采取报外喷肥的方法，弥补底
Huaibei area taro planting accounts for about 30% -40% of the area of cultivated land every year, in addition to spring red taro application of a small amount of base fertilizer, most of stubble summer red taro, planting time, due to tight schedule, high temperature, are grab moisture Fusong, white stubble planting. During the growth period, the vast majority of no top dressing habits, letting them grow, severely limiting the yield increase. According to many years of practical experience, take a newspaper outside the method of fertilizer to make up for the end