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1 适宜马铃薯生长的外界环境条件1.1 温度马铃薯块茎在6～7℃的条件下即可发芽,12℃时幼芽可茁壮生长出苗。块茎膨大的最适温度为17～20℃,高于29℃块茎停止生长。1.2 水分马铃薯生长过程中必须供给足够的水分才能获得高产。马铃薯植株每制造1kg 干物质约消耗水7081。砂质土壤的马铃薯需水更多,为11001左右。马铃薯膨大期应保持土壤水分达60%～80%,过多时易引起烂薯。1.3 光照马铃薯为喜光作物,光照充足则
1 suitable for the growth of potato environmental conditions 1.1 temperature potato tubers in the 6 ~ 7 ℃ under the conditions of germination, 12 ℃ when young shoots can thrive. Tuber expansion of the optimum temperature of 17 ~ 20 ℃, tubers above 29 ℃ to stop growing. 1.2 Water Potato growth process must provide enough water to get high yield. Potato plants consume about 7081 water per kg of dry matter produced. Sandy soil potatoes require more water, about 11001. Potato enlargement should maintain soil moisture up to 60% ~ 80%, too much easy to cause bad potato. 1.3 light potato for hi light crops, then sufficient light