农业环境科学学报2011，Vol.30Issue(11)：2300-2305,6.
施用沼液对柑桔产量和品质以及土壤环境的影响
Influence of Applying Biogas Slurry on Yield and Quality of Citrus and Soil Environment
摘要
Abstract
Biogas fermentation of wastewater released from livestock and poultry farms is one of the most important ways to comprehensively manage the stock raising pollution. However, disposal of a large amount of biogas slurry has become a challenge. In this study, incorporating biogas slurry in irrigation on citrus was investigated. Field plot experiments with multi-repeat randomized blocks design were performed to assess the influence of different amount of biogas slurry on soil property and the yield and quality of citrus. The results showed that biogas slurry irrigation could promote citrus growth and improve the soil quality by increasing the total nitrogen and organic matter but had no detrimental effect on the heavy metal contents of the soil compared with the blank controls using general chemical fertilizer. Production of citrus was increased by 8.59% with application of 300 000 kg·hm-2 biogas slurry instead of chemical fertilizers. The soluble solids content of fruit was improved as well. Total sugar of fruit was increased by 0.6% and total acid was decreased by 0.262%. The ratio of sugar to acid was significantly higher than that of the blank control (P<0.05). Hence, incorporating biogas slurry in citrus irrigation could not only decrease the use of chemical fertilizer but also provide a way to deal with biogas slurry.关键词
柑桔/沼液/土壤质量/品质Key words
citrus/ biogas slurry/ soil quality/ quality分类
农业科技引用本文复制引用
王卫平,陆新苗,魏章焕,陈晓旸,薛智勇,胡余楚,洪春来,朱凤香..施用沼液对柑桔产量和品质以及土壤环境的影响[J].农业环境科学学报,2011,30(11):2300-2305,6.基金项目
宁波市重点科研攻关择优委托项目(2009C10008) （2009C10008）
浙江省重点项目(2009C13002) （2009C13002）
