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一、品种选择经引种比较观察,克新1号、克新2号、克新3号马铃薯适合无霜期较长的丹东地区进行夏播繁种。尤其克新2号、克新3号较抗晚疫病,并具有高产、食味好、耐贮藏的特点。无霜期较长的辽东山区及辽北地区,可以采用较早熟的克新4号和克新5号。但是,这两个品种抗晚疫病性能差,应适当晚播,并及时打药控制疫病发生。二、种薯处理种薯一般于7月上旬出库。雨湿容易烂薯,要避免在雨天出库。人进库前要先打开库门和通气孔,使库内外的空气产生对流,以避免库内缺氧,伤害人体。刚出库的种薯薯皮“出汗”(潮湿),应及时放在通风良好的室内或厦棚下散晾。最好事先打好分层的木架,将种薯平摊在木架上,每层种薯厚度不要超过3粒。由于感光的作用,散晾种薯可以抑制芽子徒长,能培育出紫绿色的短壮芽。
First, the choice of species After the introduction of comparative observation, Kexin 1, Kexin 2, Kexin 3 potato suitable for frost-free period longer Dandong summer sowing. Especially Kexin 2, Kexin 3 than the late blight, and has high yield, good taste, storage-resistant characteristics. Liaodong longer frost-free mountain and northern Liaoning area, you can use the more mature Kexin 4 and Kexin 5. However, these two varieties have poor performance against late blight, they should be properly sowed late, and timely fight drugs to control the epidemic. Second, the seed potato seed processing generally released in early July. Rain easily rotten potato, to avoid the rain out of the library. People into the library before opening the door and vent, the air inside and outside the library to produce convection, in order to avoid the library hypoxia, hurt the human body. Just out of the seed potato blossoms “sweating” (damp), should be promptly placed in a well-ventilated room or shed shed dry. It is best to lay a tiered wooden frame in advance, the spread of seed in the wooden frame, the thickness of each layer of seed not more than 3. Due to the role of light, air-dry seeds can inhibit the growth of buds, can cultivate a purple-green short strong buds.