马铃薯是用块茎繁殖的作物,种薯切块能促进块茎内外氧气交换,破除休眠,提早发芽出苗节约薯种,马铃薯种薯切块可以充分利用每个芽眼,节约种薯,降低生产成本。为了避免马铃薯种薯切块后腐烂,应在催芽后播种前2—3天切块。其技术要点如下:一、种薯大小与切块重50克以下的种薯可整薯播种。重51—100克的种薯,纵向一切两瓣。重100—150克的种薯,采用纵斜切法,把种薯切成四瓣。重150克以 Potato is tuber propagated crops, seed tubers can promote the exchange of oxygen inside and outside tubers, get rid of dormancy, early germination seedlings to save potato, potato seed tubers can make full use of each bud eye, saving seed, reduce production costs. In order to avoid the decay of potato seed after cutting, it should be cut 2-3 days before sowing after germination. The technical points are as follows: First, the seed size and diced weight of 50 grams of potato seedlings can be planted below. Weight 51-100 grams of seed, longitudinal all two. Weight 100-150 grams of seed, using vertical bevel method, the seed cut into four. Weight 150 grams