实践证明 :改良型火炕育苗配合剪根假植比传统育苗方法有以下优点 :一是可比原标准炕１５ （平方米）耗煤降低２５０ （公斤） ;二是可比原标准炕提前上炕１５天 ,而且增温快 ,昼夜温差小 ;从上炕到拔第一茬秧可提前１０天 ,出秧率由原来的每１００ 种薯多出秧０．７６万株 ; Practice has proved that: improved kang nursery seedlings with cutting shears compared to the traditional nursery method has the following advantages: First, comparable to the original standard kang 15 (m2) coal consumption to reduce 250 (kg); second is comparable to the standard kang in advance on the kang 15 days , And rapid warming, temperature difference between day and night is small; from the kang to pull the first stubble seedlings can be 10 days in advance, the rate of seedlings from the original per 100 seed more seedlings 7600 strains;