摘要
应用常规化学分析方法测定白菜、圆白菜、芹菜、葱、苘蒿、茴香菜、小油菜、辣椒、柿子椒、胡萝卜、蒜苗、四季豆、马铃薯13种蔬菜采后残体的化学组分含量,为蔬菜残体的资源化高效利用提供依据。结果表明,蔬菜残体的水分含量范围为77.16%~96.83%;蔬菜残体的C/N值在8.3~18.6。大量元素(氮、磷、钾)的总含量(以烘干基计算)最高的是马铃薯7.18%,最低的为白菜3.91%;中量元素(钙、镁)总含量最高的是茴香菜2.24%;必需微量元素(铜、锌)总含量最高的是圆白菜5.87mg/kg。马铃薯和胡萝卜残体中重金属铬含量有超标现象,分别占总样本的33.3%和11.1%,而镉含量在蔬菜残体中未见超标。
The chemical constituents of residues from cabbage, head of cabbage, celery, scallion, chrysanthemum, foeniculum, pakchoi, pepper, sweetbell pepper, carrot, garlic bolt, green bean and determined in order to provide the basis for showed that in vegetable stumps the moisture crowndaisy potato were resource efficient utilization of vegetable residues. The results content was 77.16%-96.83%. The C/N rate of vegetable residues was 8.3- 18.6. The highest dry weight contents of major elements(N, P and K) were 7.18% (potato), the minimum was 3.91%(cabbage). The highest contents of middle elements(Ca, Mg) were 2.24%(foeniculum). The highest contents of micro elements(Cu, Zn) were 5.87 mg/kg(head of cabbage). 33.3% and 11.1% of the samples whose chromium content of potato and carrot exceeded the standard, the cadmium content in vegetable residue did not exceed the standard.
出处
《中国农学通报》
CSCD
2014年第10期264-268,共5页
Chinese Agricultural Science Bulletin
基金
北京市教育委员会科研项目"禽畜粪肥的施用对京郊蔬菜及种植基地重金属积累的影响"(KM201010020007)
北京市委组织部项目"畜禽粪肥的施用对京郊设施蔬菜及其土壤重金属富集研究"(PYZZ090423001829)
京郊农业产业循环技术集成与示范的子项目"蔬菜废弃物养分资源循环利用技术与示范"(2012BAD14B09)
关键词
蔬菜残体
化学组分
含量特征
vegetable stumps
chemical constituents
concentration characteristics
作者简介
贾月慧,女,1970年出生,河北藁城人,副教授,博士,主要从事土壤重金属与植物营养研究。通信地址:102206北京市昌平北京农学院,Teh010-80794486,E—mail:yhjzxd@126.com。
通讯作者:高凡,男,1979年出生,山西临县人,讲师,博士后,研究方向:微量有毒化学物质在环境中的迁移转化规律及生态系统风险评价。通信地址:102206北京市昌平北京农学院,Tel:010—80794486,E-maihgaofan0324@163.com。