Biogas slurry added amino acids decreased nitrate concentrations of lettuce in sand culture

doi:10.1080/09064710802029551

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 环境工程研究室

	Biogas slurry added amino acids decreased nitrate concentrations of lettuce in sand culture
	Liu Wenke 1; Du Lianfeng 2; Yang Qichang 1
刊名	ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE
	2009
卷号	59 期号:3 页码:260-264
关键词	Biogas slurry nitrate organic nutrient solution SPAD yield
ISSN号	0906-4710
DOI	10.1080/09064710802029551
通讯作者	Liu Wenke
英文摘要	Human health worldwide is being threatened by excessive nitrate intake through the dietary pathway, i.e. vegetables and drinking water, and the former is the primary source (about 80%) for large quantitative ingestion and the biological characteristics of nitrate accumulation, especially for leafy vegetables. In this paper, four kinds of organic nutrient solutions (biogas slurry dilution or biogas slurry dilution with added glycine) were developed to culture lettuce in order to lower the nitrate concentrations in leafy, tissue. The results showed that all organic nutrient solutions significantly decreased nitrate concentrations of lettuce shoot, and simultaneously had an increased or unbiased yield compared with inorganic nutrient solution (containing NO(3)(-)-N solely) in sand culture with high-level nitrogen supply (8.69-15 mmol/L). In addition, glycine addition only slightly decreased nitrate concentrations in lettuce shoot both at 1:4 and 1:5 dilution rates of biogas slurry. Leafy SPAD values indicated that there were differences in lettuce N nutrition of new and old leaves responding to various N-form supplies, and no correlations between nitrate concentration and SPAD values were found. It was concluded that application of organic nutrient solutions formulated from biogas slurry dilution and amino acid in soilless cultivation is an effective means for reduction nitrate concentrations in leafy vegetables.
学科主题	Agronomy ; Soil Science ; AGRONOMY ; SOIL SCIENCE
语种	英语
出版者	TAYLOR & FRANCIS AS
WOS记录号	WOS:000265938000008
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19969]
专题	农业环境与可持续发展研究所_环境工程研究室
作者单位	1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Agroenvironm & Climate Change, Minist Agr, Beijing 100081, Peoples R China 2.Beijing Acad Agroforestry, Inst Plant Nutr & Resources, Beijing 100097, Peoples R China
推荐引用方式 GB/T 7714	Liu Wenke,Du Lianfeng,Yang Qichang. Biogas slurry added amino acids decreased nitrate concentrations of lettuce in sand culture[J]. ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE,2009,59(3):260-264.
APA	Liu Wenke,Du Lianfeng,&Yang Qichang.(2009).Biogas slurry added amino acids decreased nitrate concentrations of lettuce in sand culture.ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE,59(3),260-264.
MLA	Liu Wenke,et al."Biogas slurry added amino acids decreased nitrate concentrations of lettuce in sand culture".ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE 59.3(2009):260-264.