Effect of ammonium and nitrate ratio on nutritional quality of flowering Chinese cabbage

被引：16

作者：

Song, Shiwei ^{[1
]}

Yi, Lingyan ^{[1
]}

Liu, Houcheng ^{[1
]}

Sun, Guangwen ^{[1
]}

Chen, Riyuan ^{[1
]}

机构：

[1] S China Agr Univ, Coll Hort, Guangzhou 510642, Guangdong, Peoples R China

来源：

INTELLIGENT MATERIALS, APPLIED MECHANICS AND DESIGN SCIENCE | 2012年 / 142卷

关键词：

flowering Chinese cabbage; ammonium and nitrate ratio; nutritional quality;

D O I：

10.4028/www.scientific.net/AMM.142.188

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Effect of ammonium and nitrate ratios (0:100, 25:75, 50:50 and 75:25) on nutritional quality of flowering Chinese cabbage (Brassica campestris L. ssp. chinensis var. utilis Tsen et Lee) with 3 cultivars were studied in hydroponics. The results indicated that, with the increasing of ammonium proportion in nutrient solution, the soluble sugar content in product organ of flowering Chinese cabbage increased gradually, but Vc content decreased gradually. Enhancement of ammonium by 25% or 50% in nutrient solution increased the soluble protein content in leaf significantly, while it increased gradually in stalk with the increasing of ammonium proportion. Free amino acids in product organ of flowering Chinese cabbage were improved significantly by enhancement of ammonium in nutrient solution. Integrated nutritional quality of flowering Chinese cabbage in 25% ammonium enhancement treatment was better than others under hydroponics condition.

引用

页码：188 / 192

页数：5

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