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作 者:王玉霞[1] 徐坤[1] 米庆华[2] 孔祥波[1] 尚庆文[1]
机构地区:[1]山东农业大学园艺科学与工程学院 [2]山东农业大学科技处
出 处:《中国蔬菜》2006年第9期12-15,共4页China Vegetables
基 金:国家"十五"重大专项资助项目(2001BA804A29)
摘 要:对两种转光膜的温光效应及其对春大白菜生长、产量及品质的影响进行了研究。结果表明,转光膜Ⅱ的透光率较高,增温效果较好。同时具有调节棚内温度的作用,当气温较低时,棚内气温及5 cm地温较普通薄膜分别提高0.5~0.9℃和0.7~1.3℃;当气温较高时,棚内气温及5 cm地温则比普通薄膜分别下降0.2~1.0℃和0.2~0.6℃。转光膜处理的春大白菜生长势显著增强,产量提高,品质改善。收获时,转光膜Ⅰ、Ⅱ处理的春大白菜产量分别比对照增加7.53%和13.70%。The result of the experiment indicated that spectrum conversion film had higher light transmittance character and increased temperature in tunnel remarkably, as compared with common film(CK) ; the spectrum conversion film, when temperature was low,could enhance the air temperature and 5 cm deep soil temperature in tunnel by 0.5 - 0.9 ℃ and 0.7 - 1.3 ℃ respectively, but when temperature was high, it could decreased those by 0.2 - 1.0℃ and 0.2 - 0.6 ℃ respectively. So spectrum conversion film remarkably increased yield and improved quality of Chinese cabbage. The yield under spectrum conversion film Ⅰ and Ⅱ increased 7.53 % and 13.70 % respectively as compared with CK.
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