论文部分内容阅读
在39天的日平均气温13.0～19.2℃、日平均地温14.0～23.8℃的范围内研究了温度对辣椒、茄子、黄瓜、甘兰幼苗质量的影响。地温对蔬菜种子发芽出土起庆定作用,辣椒、茄子、黄瓜的适宜地温为24～25℃,甘兰为20～22℃。出苗后气温对幼苗生长发育起着主导的作用。气温低提高地温对加快幼苗生长起补偿作用,但远不能补足因气温低而影响幼苗生长的部分,气温升高地温补偿作用减弱。育苗时控制适当气温并使地温在适温中下限,幼苗生长快又比较节能。从培青壮苗和节能综合考滤,当地温达到适温下限后,辣椒幼苗生长在日均18～19℃、茄子17～18℃、黄瓜16—17℃、甘兰15～16℃较适宜。
The effects of temperature on the quality of pepper, eggplant, cucumber and sweet cabbage seedlings were studied in the daily average temperature of 39.0 ~ 19.2 ℃ and the daily average ground temperature of 14.0 ~ 23.8 ℃. The ground temperature played a positive role in the germination of the germinated vegetable seeds. The optimal temperature of pepper, eggplant and cucumber was 24 ~ 25 ℃ and that of kalanimmophilus was 20 ~ 22 ℃. Post-emergence temperature plays a leading role in the growth and development of seedlings. Low temperature increases the ground temperature to speed up the growth of seedlings play a compensatory role, but far can not make up for the low temperature and affect the growth of seedlings part of the warming temperature compensatory effect weakened. Seedling control of the appropriate temperature and ground temperature in the lower limit of suitable temperature, seedlings grow faster and more energy efficient. From Peiqing strong seedlings and energy-saving comprehensive test, after the local temperature reaches the lower limit of suitable temperature, the growth of pepper seedlings is average 18 ~ 19 ℃, eggplant 17 ~ 18 ℃, cucumber 16-17 ℃, sweetlan 15 ~ 16 ℃ .