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科技导报
| 专题论文 2014, 32(10): 53-56
温室零浓度差CO
2 施肥与送风耦合法对番茄生长的影响
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仝宇欣, 程瑞锋, 辛敏, 王君, 杨其长
作者信息
中国农业科学院农业环境与可持续发展研究所, 农业部设施农业节能与废气物处理重点实验室, 北京 100081
通讯作者:
杨其长，教授，研究方向为设施园艺环境工程、植物工厂、LED农业应用等，电子信箱：yangqichang@caas.cn
Zero CO2 Concentration Difference and Enhanced Air Current Speed Method for Tomato Plant Greenhouse
Affiliations
出版时间: 2014-04-08
doi: 10.3981/j.issn.1000-7857.2014.10.009
文章导航
CO2 匮缺与低风速是温室存在的普遍现象，即使在温室通风状态下也不例外。在温室通风时，为减少CO2 逸散、提高CO2 利用效率，采用零浓度差CO2 施肥法同时进行室内送风，并对试验温室与对照温室内番茄冠层净光合速率、CO2 利用效率、番茄冠层蒸腾速率进行调查。结果表明，当太阳辐射强度从383.5 W·m-2 增加到940.1 W·m-2 时，试验温室番茄冠层净光合速率从1.9 g·m-2 ·h-1 升高到5.3 g·m-2 ·h-1 ，比对照温室番茄冠层净光合速率高出1.3~1.6 倍；而试验温室番茄冠层蒸腾速率从0.17kg·m-2 ·h-1 升高到0.56 kg·m-2 ·h-1 ，比对照温室番茄冠层蒸腾速率高出1.2~1.4 倍；CO2 利用效率近似于1。研究表明，在温室通风状态下采用零浓度差CO2 施肥法同时进行室内送风是设施栽培增产的有效途径。
番茄
/
温室
/
CO2 施肥
/
CO2 利用效率
Depletion of CO2 concentration during daytime together with a low air current speed was observed in a naturally ventilated greenhouse. In a ventilated greenhouse, a zero CO2 concentration difference method together with an enhanced air current speed was introduced to decrease the CO2 leakage to outside and improve the CO2 use efficiency. Rates of canopy net photosynthesis and transpiration and CO2 use efficiencies were investigated in tomato experiment greenhouse and control greenhouse, respectively. The results show that when solar radiation increases from 383.5 W·m-2 to 940.1 W·m-2 , the canopy net photosynthesis rate increases from 1.9 g·m-2 ·h-1 to 5.3 g·m-2 ·h-1 , which is 1.3-1.6 times higher than that in the control greenhouse, and the canopy transpiration rate increases from 0.17 kg·m-2 ·h-1 to 0.56 kg·m-2 ·h-1 , which is 1.2-1.4 times higher than that in the control greenhouse. The CO2 use efficiency is around 1. The above result indicates that the null CO2 balance concentration method together with enhanced air current speed should be considered as an efficient method for improving plant production in protected cultivation.
tomato
/
greenhouse
/
CO2 enrichment
/
CO2 use efficiency
仝宇欣, 程瑞锋, 辛敏, 王君, 杨其长.
温室零浓度差CO2 施肥与送风耦合法对番茄生长的影响.
科技导报,
2014
, 32
(10)
: 53
-56
.
DOI: 10.3981/j.issn.1000-7857.2014.10.009
TONG Yuxin, CHENG Ruifeng, XIN Min, WANG Jun, YANG Qichang.
Zero CO2 Concentration Difference and Enhanced Air Current Speed Method for Tomato Plant Greenhouse[J].
Science & Technology Review ,
2014
, 32
(10)
: 53
-56
.
DOI: 10.3981/j.issn.1000-7857.2014.10.009
2014年第32卷第10期
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文章信息
doi: 10.3981/j.issn.1000-7857.2014.10.009
接收时间：2014-01-10
首发时间：2014-04-19
出版时间：2014-04-08
收稿日期：2014-01-10
修回日期：2014-01-20
通讯作者:
杨其长，教授，研究方向为设施园艺环境工程、植物工厂、LED农业应用等，电子信箱：yangqichang@caas.cn
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2014.10.009
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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