中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 氮肥浓度及形态对青菜产量及品质的影响 上海农业学报 2014,30 (1) 81-84
Position: Home > Articles > Effects of nitrogen fertilizer concentrations and forms on pakchoi yield and quality Acta Agriculturae Shanghai 2014,30 (1) 81-84

氮肥浓度及形态对青菜产量及品质的影响

作  者：
张彩峰;李珍珍;陆奕;牛庆良
单  位：
上海交通大学农业与生物学院;上海市农业技术推广服务中心;上海市闵行区农业科学研究所
关键词：
青菜;产量;品质;施肥试验;氮肥;栽培季节
摘  要：
采用水培法研究了不同供氮水平及氮素形态配比对青菜生长、产量、硝酸盐含量及维生素C含量的影响,在合适的氮素形态配比下,进一步研究了不同季节青菜硝酸盐含量的差异。结果表明:10 mmol/L氮素水平下,青菜叶面积、产量及维生素C含量最高,硝酸盐含量相对较低,该浓度最为适宜。青菜生长适宜营养液的配比为NO_3~--N/NH_4~+-N=5/5,当NH_4~+-N比例超过70%时,青菜叶面积、产量明显下降,随着NH_4~+-N比例降低,青菜硝酸盐含量提高。不同季节青菜硝酸盐含量表现为:夏季>春季>冬季。
译  名：
Effects of nitrogen fertilizer concentrations and forms on pakchoi yield and quality
作  者：
ZHANG Cai-feng;LI Zhen-zhen;LU Yi;NIU Qing-liang;Agricultural Research Institute of Minhang District;Shanghai Agro-Technology Extension Service Center;School of Agriculture and Biology,Shanghai Jiaotong University;
关键词：
Pakchoi;;Yield;;Quality;;Fertilization experiment;;Nitrogen fertilizer;;Culture season
摘  要：
The effects of nitrogen-supply levels and nitrogen-form ratios on the growth,yield,nitrate content and vitamin C content of pakchoi were investigated by hydroponics,and at an appropriate nitrogen-form ratio the nitrate content of pakchoi was studied in different seasons.The results showed that at 10 mmol/L nitrogen level,the leaf area,yield and vitamin C content of pakchoi reached the highest and the nitrate content was relatively low.The suitable nutrient fluid ratio of NH_4~+-N to NO_3~--N for pakchoi to grow was 5/5.When the proportion of NH_4~+-N was over 70%,the leaf area and yield obviously decreased,and as the proportion of NH_4~+-N decreased,the nitrate content of pakchoi increased.The descending order in nitrate contents of pakchoi cultivated in different seasons was summer>spring>winter.

相似文章

导出引用
计量
文章访问数: 10
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46