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农学学报 ›› 2021, Vol. 11 ›› Issue (9): 24-27.doi: 10.11923/j.issn.2095-4050.cjas20200200026

• 植物保护 • 上一篇    下一篇

有机肥中氨基酸废料添加量的安全阈值研究

乔艳(), 胡诚, 张智, 刘东海, 陈云峰, 李双来()   

  1. 农业农村部废弃物肥料化利用重点实验室,湖北省农业科学院植保土肥研究所,武汉 430064
  • 收稿日期:2020-02-19 修回日期:2020-05-03 出版日期:2021-09-20 发布日期:2021-09-30
  • 通讯作者: 李双来 E-mail:297463471@qq.com;156691670@qq.com
  • 作者简介:乔艳,女,1967年出生,湖北武汉人,副研究员,主要从事新型肥料方面的研究。通信地址:430064 湖北省武汉市洪山区南湖大道18号 湖北省农业科学院植保土肥研究所,E-mail: 297463471@qq.com
  • 基金资助:
    国家重点研发计划项目“集约化养殖粪污污染综合防治技术与装备研发”(2018YFD0800100)

The Threshold Value of the Addition Amount of Amino Acid Waste in Manure

Qiao Yan(), Hu Cheng, Zhang Zhi, Liu Donghai, Chen Yunfeng, Li Shuanglai()   

  1. Key Laboratory of Fertilization from Agricultural Wastes, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan 430064, Hubei, China
  • Received:2020-02-19 Revised:2020-05-03 Online:2021-09-20 Published:2021-09-30
  • Contact: Li Shuanglai E-mail:297463471@qq.com;156691670@qq.com

摘要:

氨基酸废料因其价格低廉、富含氨基酸与养分资源等特征,是有机肥的优质添加剂,评估氨基酸废料添加量的安全阈值是研制生物有机肥的重要依据。将氨基酸废料溶解于水,从0到15%共设置7个添加量,喷至有机肥成品,分析不同添加量下有机肥酸碱度、电导率、氯离子含量和种子发芽指数的变化特征。研究结果表明,氨基酸废料添加量在3%范围内,pH呈现较为平稳的趋势,当添加量进一步增加,pH则逐渐降低。电导率随着氨基酸废料添加量的升高呈现同步增加的趋势,有机肥中盐分含量逐渐增加,Cl -含量同样是稳步上升,当添加量在10%范围内,Cl -含量均低于3%。当氨基酸废料添加量≤1%时,种子发芽指数可达到75%以上,但添加量增至3%时,种子发芽指数骤降,出现明显的毒害现象。因此,氨基酸废料添加量需控制在3%以内,本研究推荐1%为研制生物有机肥的安全阈值。

关键词: 有机肥, 氨基酸废料, 氯离子含量, 种子发芽指数, 阈值

Abstract:

The amino acid waste is a good additive for manure because of its low cost and rich in nutrients. Estimating the threshold addition amount of amino acid waste will provide an important evidence for the development of bio-organic fertilizer. This study evaluated the safety of the manure which has been added with liquid amino acid waste. The addition amount included seven levels from 0 to 15%. The simulation experiment was conducted to analyze pH, EC, Cl - concentration, and seed germination index (GI). The results showed that pH was steady within 3% and decreased with the increasing addition amount. The EC and Cl - concentration showed an improving trend, and the Cl - concentration was lower than 3% at the 10% addition level. The GI could be more than 75% at 1% addition level, however, the GI plunged at the 3% addition level. Therefore, the addition level of amino acid waste in manure could be controlled at 3%, the safety threshold value for developing bio-organic fertilizer is recommended at 1%.

Key words: Manure, Amino Acid Waste, Cl- Concentration, Germination Index, Threshold Value

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