摘要
本研究针对废弃果园枝条资源化利用程度低的问题,通过热水解法对枝条进行处理,探索枝条肥料化利用的可行性。设置40℃、60℃、80℃3个不同温度,每个温度设置4 h、8 h、12 h 3个不同时间,共计9个处理,对制备出的液体、残渣进行养分和提取率分析。结果表明,同一温度下,浸提液中氮、磷、钾含量均随处理时间增加而增加。在低温条件下,有机碳含量随着浸提时间增加而增加,高温条件长时间浸提反而不利于浸提液中有机碳的增加。综合养分浓度,有机碳含量以及氮、磷、钾养分提取率、残留率和损失率,60℃-12 h为最佳处理条件,且该条件下氮、磷、钾养分提取率相对较高,分别达17.8%、11.7%、45.3%,损失率较低,分别为5.5%、13.5%、3.7%。以60℃-12 h热水解法将果园废弃枝条初步制备成液体有机肥,是实现新疆地区废弃果园枝条资源化利用的一项可行措施。
This study focuses on the low utilization of resource utilization of waste orchard branches,the branches were treated by hot water hydrolysis,to explore the feasibility of fertilizer utilization of branches.Three different temperatures were set at 40℃,60℃and 80℃,and there were three different treatment times of 4 h,8 h and 12 h at each temperature,for a total of 9 treatments.The nutrient and extraction rate of the prepared liquid and residue were analyzed.The results showed that,at the same temperature,the content of nitrogen,phosphorus,and potassium in the extraction solution increases with the increase of treatment time.Under low temperature conditions,the organic carbon content increased with the increase of extraction time,but the long-term extraction at high temperature was not conducive to the increase of organic carbon in the extraction solution.Comprehensive nutrient concentration,organic carbon content,extraction rate,residual rate and loss rate of nitrogen,phosphorus and potassium,60℃-12 h was the best treatment condition.Under this condition,the extraction rates of nitrogen,phosphorus and potassium were relatively high,reaching 17.8%,11.7%and 45.3%,respectively,and the loss rates were low,reaching 5.5%,13.5%and 3.7%,respectively.The preliminary production of waste orchard branches into liquid organic fertilizer by 60℃-12 h thermal hydrolysis is a feasible measure to realize the resource utilization of waste orchard branches in Xinjiang region.
作者
杨莉莉
李泽
温生华
崔国林
韩璐
孟冉冉
马龙
YANG Lili;LI Ze;WEN Shenghua;CUI Guolin;HAN Lu;MENG Ranran;MA Long(College of Agriculture,Tarim University Key Laboratory of Genetic Improvement and Efficient Production for Specialty Crops in Arid Southern Xinjiang of Xinjiang Corps,Alar,Xinjiang 843300;Research Center of Oasis Agricultural Resources and Environment in Sourthern Xinjiang,Alar,Xinjiang 843300)
出处
《塔里木大学学报》
2025年第3期26-36,共11页
Journal of Tarim University
基金
塔里木大学校长基金博士人才项目(TDZKBS202202)
2022年度兵团指导性科技计划项目(2022ZD117)
塔里木大学大学生创新创业训练计划项目(2023016)。
关键词
废弃枝条
资源化利用
液体有机肥
养分提取率
waste branches
waste resource utilization
liquid organic fertilizer
nutrient extraction rate
