应用生态学报2013，Vol.24Issue(7)：1931-1937,7.
施用猪粪对油麦菜产量、硝酸盐含量及土壤养分的影响
Effects of applying pig manure on lettuce yield and nitrate content and soil nutrients
摘要
Abstract
A pot experiment with two representative soils (purple soil and yellow soil) in Southwest China was conducted to study the effects of applying pig manure on the lettuce (Lactuca sativa L.var.capitata L.) yield and nitrate content and the soil nutrients.Applying pig manure increased the lettuce yield significantly,and the increment was higher for yellow soil than for purple soil.The nitrate and total nitrogen,phosphorus,and potassium contents in lettuce plants were closely related to soil type and pig manure application rate.According to the evaluation standards of the nitrate pollution level of vegetables formulated by the Chinese Academy of Agricultural Sciences,the nitrate content in lettuce plants growing on purple soil was lower than the grade Ⅰ (≤432 mg · kg-1,slight pollution) in treatments CK (no pig manure application) and M1(applying 200 kg N · hm-2 of pig manure),but generally higher than the grade Ⅱ (≤758 mg · kg-1,moderate pollution) while not exceeded the grade Ⅲ (≤ 1440 mg · kg-1,heavy pollution) in other treatments.The nitrate content in lettuce plants growing on yellow soil was lower than the grade Ⅰ,except that in the treatments of chemical fertilizations and of M8(applying 1600 kg N · hm-2 of pig manure) where the plant nitrate content was exceeded the grade Ⅱ.The critical value of Olsen-P characterizing the apparent leaching risk level of phosphorous in yellow soil and purple soil was 96.3 and 107.7 mg · kg-1,respectively.The environmental safety capacity of pig manure was higher for yellow soil than for purple soil.Applying pig manure increased the organic carbon and total nitrogen contents of the two soils significantly.关键词
紫色土/黄壤/油麦菜/猪粪/硝酸盐/产量/养分Key words
purple soil/yellow soil/lettuce/pig manure/nitrate/yield/nutrient分类
农业科技引用本文复制引用
胡留杰,刘剑飞,廖敦秀,聂敏,谢永红,张洪霞,周正科,肖和艾..施用猪粪对油麦菜产量、硝酸盐含量及土壤养分的影响[J].应用生态学报,2013,24(7):1931-1937,7.基金项目
中国科学院战略性先导科技专项(XDA05050505)、重庆市自然科学重点基金项目(CSTC,2009BA4077)、国家科技支撑计划项目(2012BAD14B17)和国家自然科学基金项目(41271483)资助. （XDA05050505）
