摘要
以衡水市邓庄乡大棚番茄为试材,研究不同施氮条件下,番茄体内硝酸盐、维生素C、多糖含量的变化。结果表明:适量施用氮肥,番茄体内的维生素C、多糖含量随着施氮量的增多而升高,过量施用氮肥会引起维生素C、多糖含量的下降;硝酸盐含量和施氮量呈明显的线性关系,Y=1.9146X-442.7,R^2=0.985,所测样品均未超过国家限定标准。
Take the tomatoes in solar greenhouse of Dengzhuang Village as test material,and research the change of tomato body's nitrate,vitamin C,polysaccharide based on different conditions for nitrogen utilization.The results showed that fertilizing appropriate amount of nitrogen(vitamin C was 299～353.2 kg/hm^2,sugar content was 299～347.6 kg/ hm^2),the tomato body's vitamin C,polysaccharide would be increased as the more nitrogen fertilizing;or the excessive nitrogenous fertilizer would decreased the content of vitamin C and polysaccharide;It obviously showed the linear relation between nitrogen content and nitrogen fertilizing.y=1.9146x-442.7,R^2=0.985,all the test samples hadn't been beyond the state limited standards.
出处
《北方园艺》
CAS
北大核心
2011年第11期36-37,共2页
Northern Horticulture
基金
衡水学院重点资助项目(2009005)
关键词
施氮量
番茄
维生素C
硝酸盐
nitrogen fertilization levels
tomato
quality
