摘要
研究了不同滴灌施肥强度对温室生菜生物学性状、生理指标、品质及产量的影响。结果表明:全生育期滴灌施肥强度为1350 m3/hm2肥水混合液(浓度0.4 g/L)时,生菜的球径、开展度和叶片数显著高于其它滴灌施肥强度,叶片叶绿素含量及最大光化学效率Fv/Fm有一定提高,生菜VC含量和净菜产量均达到最高水平,分别为1.65 mg/kg鲜重和46 178 kg/hm2。
Biological traits, physiological indices, quality and yield of lettuce under different fertigation intensities in greenhouse were studied. The results showed that with the application of 1 350 rna/hm2 fertilizer solution（0. 4 g/L）, diameter of lettuce ball, extension, number of leaves were significantly higher than other fertigation intensities. Meanwhile, chlorophyll content and maximum photochemical efficiency Fv/Fm increased to a certain extent. Vitamin C content and net yield also reached the highest under this fertigation intensity, which was 1.65 mg/kg fresh weight and 46 178 kg/hm2 respectively.
出处
《北方园艺》
CAS
北大核心
2010年第11期55-58,共4页
Northern Horticulture
基金
北京市农业科技成果转化专项资助项目(Z07090500550725)
关键词
滴灌施肥强度
生菜
品质
产量
fertigation intensity
lettuce
quality
yield
