美国洋葱yesgrow光温效应及主要栽培因素试验  

Light-temperature effect and main cultivation factors of American onion cultivar yesgrow

作　　者：陈山虎[1] 何玉仙[2] 陈庆河[2] 陈君琛[1] 纪荣昌[1] 

机构地区：[1]福建省农业科学院耕作轮作研究所,福建福州350013 [2]福建省农业科学院植物保护研究所,福建福州350013

出　　处：《福建农业学报》2001年第2期36-39,共4页Fujian Journal of Agricultural Sciences

摘　　要：对美国引进洋葱新品种 yesgrow进行光温效应、施肥水平及种植密度等特性研究。结果表明 ,该品种属“短日不耐低温类型”,适宜在闽东南沿海一带种植 ,适宜播种期为夏至至大暑 ;适宜肥料施用比例为 N∶ P2 O5 ∶K2 O =1∶ 0 .6 5∶ 1.95 ,每公顷适宜施肥量为纯 N 375 kg、 P2 O5 2 43 kg、 K2 O 731kg;最佳种植密度为每公顷 2 7～30万株。Light\|temperature effect,fertilizing levels and plant density of American onion cultivar yesgrow were studied.The results showed that yesgrow was short day plant and sensitive to low temperature.It was suitable for grow in the coastal area of southeast Fujian and the optimum sowing period was from Summer solstice (June.21)to Great heat (July.23).Suitable fertilizer level was N∶P 2O 5∶K 2O=1∶0 65∶1 95,or N,P 2O 5,K 2O were 375,243,731 kg per hm 2,respectively.The optimum plant density was 270000-300000 plants per hm 2.

关 键 词：洋葱 光温效应 施肥水平 种植密度 

分 类 号：S633.2[农业科学—蔬菜学]