论文部分内容阅读
1995～1997年，在日光温室内进行了人工增施CO2试验，使温室内CO2浓度达到800～1000mg／kg。结果表明，叶片光合作用强度提高，叶片数和瓜码数分别增加9％和46．6％，根系鲜重提高8．2％，产量达13．86万kg／hm2，产值1．55万元／hm2，投入产出比为1∶10．3
From 1995 to 1997, artificial CO2 experiment was carried out in the solar greenhouse to make the CO2 concentration in the greenhouse reach 800 ~ 1000mg / kg. The results showed that the intensity of photosynthesis increased, the number of leaves and melon number increased by 9% and 46.6% respectively, the fresh weight of root increased by 8.2%, the output reached 138,600 kg / hm2 and the output value was 15,500 yuan / Hm2, input-output ratio of 1:10.3