乐亭日光温室的温度环境及长季节黄瓜栽培的可行性分析

Feasible Analysis on Temperature Environmental of Sunlight Greenhouse and Long-season Cucumber Cultivation in Laoting

2010年9月～2011年7月在河北省乐亭县日光温室内进行了一年一作长季节黄瓜栽培,每天均于7:30、12:00和17:00定时测定室内外气温和室内10 cm地温,黄瓜收获期每天统计黄瓜产量。明确了整个黄瓜生育期温室内的极端气温和极端地温,并在不同时期(低温时期和高温时期)和不同天气(连阴天和连晴天)条件下对日光温室内外的气温、地温以及黄瓜产量进行了比较,以探讨乐亭日光温室进行一年一作长季节黄瓜生产的可行性。结果表明:在当地气候条件下,乐亭日光温室的冬季保温性和春夏季通风降温性均良好,室内平均气温和平均地温均在黄瓜生长的适宜温度范围内,能够进行黄瓜一年一作长季节生产。在日光温室黄瓜生产中,增加日光温室温度和光照是提高黄瓜产量的重要途径。

Cucumber was cultivated one time every year in sunlight greenhouse of Laoting County from Septemble 2010 to July 2011, the air temperature of indoor and outdoor and 10 cm ground temperature of indoor were mensurated timly in 7： 30, 12：00 and 17：00 of every day, and cucumber output was counted in every day of harvesting period. Extreme air temperature and extreme ground temperature of whole growth period in sunlight greenhouse were defini（ed, and the air and ground temperature inside and outside greenhouse and the yield were compared in different stage （ high temperature stage and low temperature stage） and different weather （ cloudy and sunny for several days ） conditions to discuss the feasible of long-season cucumber cultivation in sunlight greenhouse of Laoting. The results showed that insulation capability in winter and ventilation cooling capability in spring and summer of sunlight greenhouse were good for cultivating long-season cucummber in Laoting climate. In cucumber production of sunlight greenhouse, increasing the temperature and light of sunlight greenhouse was the important way to improve the yield of cucumber.