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常有种植户反映,春马铃薯秧很旺,但薯块小而少,产量低。经调查分析,其原因有三:一是选用品种不适宜本地气候特点。如部分群众从市场上购商品马铃薯作为种用,一是代数多,品种退化严重;二是这些商品薯主要来源于一季作区的甘肃、山西、陕西等,这些地区适应马铃薯生长的季节长,生产上多用中晚熟品种,结薯晚,膨大速度慢,时间长。而中原二季作区生长季节短,气温回升快,当中晚熟马铃薯结薯臌大时,气温、地温很高,白天茎叶光合作用制
Plant owners often reflect the spring potato seedlings are flourishing, but smaller and fewer potato, low yield. After investigation and analysis, for three reasons: First, the selection of varieties is not suitable for local climate characteristics. For example, some of the people buy potato from the market as a kind of seed. First, they have many algebraic varieties and seriously degenerate varieties. Second, these mainly originate from Gansu, Shanxi and Shaanxi in the first quarter, which are suitable for the season of potato growth. Multi-purpose production of late-maturing varieties, tuber late, swelling slow, long time. The Central Plains area for the second quarter of a short growing season, the temperature picked up fast, when the late potato tubers yam large, temperature, high ground temperature during the day stem and leaf photosynthesis