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Effects of Nutrient Levels on Plant Growth and Fruit Quality of Muskmelon in Soilless Medium Culture
Author(s): 
Pages: 184-186
Year: Issue:  2
Journal: ACTA AGRICULTURAE BOREALI-SINICA

Keyword:  网纹甜瓜营养液浓度光合特性品质基质栽培;
Abstract: 在设施基质栽培条件下,低浓度营养液不利于网纹甜瓜植株的生长;高浓度营养液使植株营养生长过旺,产量品质变劣.过高或过低浓度的营养液对网纹甜瓜叶片净光合速率的影响主要是由与叶肉细胞光合活性下降有关的非气孔限制因素造成的.为改善品质,提高产量,基质栽培网纹甜瓜的最适营养液浓度的Ec值为:定植-授粉1.40 mS/cm,授粉-网纹形成1.56 mS/cm,网纹形成-果实成熟2.63 mS/cm.在生产中,应按生育期分期施肥,定植-营养生长期N:K为1.05:1,座果期-采收为0.53:1.
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