论文部分内容阅读
一、种植秋马铃薯的意义: 马铃薯最适宜的结薯温度为12—22℃,至25℃时,块茎即停止生长,30℃时即变畸形。南方平原地区,夏季温度高,6—7月平均温度已达25°—30℃,如春播夏收,块茎形成后期,已当高温来临,同时,在高温条件下贮藏,不能留作次年做种用。因此必须进行秋播留种,使能在冷凉的气候条件下,形成块茎,次年春播,则生活力强,产量高。同时,秋马铃薯生育期短,又可增加一季收成。
First, the significance of planting autumn potatoes: The most appropriate potato potato temperature of 12-22 ℃, to 25 ℃, the tubers that stop growing, 30 ℃ that is deformed. Southern plains, the summer high temperature, June-July average temperature reached 25 ° -30 ° C, such as spring summer harvest, late tubers have been high temperatures, while stored at high temperatures, can not be reserved for the following year to do use. Therefore, autumn planting must be held to enable the formation of tubers in cool climatic conditions, the following spring sowing, the vitality and high yield. At the same time, autumn potato growth period is short, but also increase the harvest season.