宿县地区群众常在山芋生长期間,用棍棒挑摔方法进行翻蔓,以防止蔓节生根。根据我所近几年来的試驗,証明这种方式是会减产的。1962年試驗,不翻不提蔓的山芋亩产三千零七十九点七斤,而翻蔓二次的亩产二千三百一十七点一斤,减产24.8%;翻蔓次数多,减产也狽,五次的亩产只有一千九百九十一斤,减产达35.4%。因为采用这种方式翻蔓,使蔓叶翻轉、重叠和过多的損伤,翻蔓二至五次的每株枯黄叶数高达八十片以上,断茎数也有零点三至二点六条;而不翻不提蔓的每株枯黄叶数只近三十片,且无断茎。 People in Suxian County often grow during the period of potato growth with sticks toggling method to turn vine, in order to prevent the growth of man-made roots. According to the tests I have conducted in recent years, it is proved that this method will be cut down. 1962 test, without mentioning the manuscript of potato yield 3,079.7 kg, and turn the second of the mu produce 2,371 pound, cut 24.8%; turn over more However, the yield per square footage is also down. Only five thousand nine hundred and ninety-one tons of mu produce have been reduced by 35.4%. Because of the method of turning over the vine so that the leaf is overturned, overlapping and excessive damage, the number of yellow leaves per plant is up to eighty to two or five times, and the number of broken stems is also from 0.3 to 2.06 Article; and not to mention Men do not mention the number of leaves per plant only nearly thirty dry, and no broken stems.