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目前我区地瓜育苗主要是用室内火炕育苗。这种育苗方式虽然成本较低,群众比较有习惯,但由于它是一家一户分散的育苗形式,不太适应集体生产的需要,另方面也存有育苗和人争炕的矛盾,群众也感到麻烦,因而广大干部和群众迫切需要解决集体育苗的技术措施。适于集体应用的老式囘龙火炕自1956年推广以来,由于成本高,温度不太平稳,育苗不安全,到目前为止,仅有个别地区和单位采用,多数生产队不愿接受。为适应生产发展的需要,我们在老式囘龙火炕的基础上,进行了多次改良试验,证明简易囘
At present, my area sweet potato nursery is mainly indoor kang nursery. Although this breeding method has lower cost and the people are more accustomed to, it is not suitable for the needs of collective production because it is a scattered form of nursery. On the other hand, there are contradictions between nursery seed and people fighting for kang, and people feel Trouble, so the cadres and the masses urgently need to solve the technical measures of collective seedlings. Since the promotion of 1956, the old Huilong kang which is suitable for collective application has not been accepted by most production units so far due to the high cost, the unstable temperature and the insecticidal nursery. In order to meet the needs of the development of production, we have conducted many improvement experiments on the basis of the old Huilong kang, which proves that simple