根外施钾对日光温室番茄光合速率的影响  

Effect of Foliage Top-dressing of Potassium on the Photosynthetic Rate of Tomato Grown in Solar Greenhouse

作　　者：赵国锦[1] 于明礼[1] 李京冈[1] 

机构地区：[1]滨州职业学院生物工程系,山东滨州256624

出　　处：《安徽农业科学》2006年第7期1402-1402,1404,共2页Journal of Anhui Agricultural Sciences

摘　　要：试验研究了番茄生育期根外施钾对其光合速率的影响，结果表明，根外施钾可促进光合速率，一定程度缓和“午休”现象。番茄生育期11月，次年3月份4次根外施钾对促进番茄光僵速率和营养积累有显著作用，其效应优于根外2次施钾和3次施钾处理，每次施钾作用持续时间达25d左右。The photosynthetic rate of tomato may be improved to some extents after the application of foliage top-dressing of potassium. It could improve and extend the photosynthetic rate of tomato as well as increase the storage of nutrition after five times＇ spraying of potassium during the tomato growth period form November to next March and the effects would be kept up for twenty-five days after each spraying of potassium.

关 键 词：根外施钾 日光温室 番茄 光合速率 

分 类 号：S625.5[农业科学—园艺学]