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中国农学通报

中国农学通报 ›› 2024, Vol. 40 ›› Issue (8): 86-90.doi: 10.11924/j.issn.1000-6850.casb2023-0285

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

鸟粪石结晶反应在香蕉秸秆堆肥中的试验研究

滕青1(), 林炫洁2, 刘维1   

  1. 1 广东石油化工学院 环境科学与工程学院，广东茂名 525000
    2 茂名市盈峰环境水处理技术有限公司，广东茂名 525000
  • 收稿日期:2023-04-06 修回日期:2023-08-24 出版日期:2024-03-15 发布日期:2024-03-10
  • 作者简介:

    滕青，男，1987年出生，湖北荆州人，副教授，博士，主要从事固体废弃物资源化研究。通信地址：525000 广东省茂名市茂南区科创路1号 广东石油化工学院环境科学与工程学院，Tel：0668-2338979，E-mail：。

  • 基金资助:
    茂名市科技专项资金项目“高效食用菌菌渣发酵肥制备及其强化微生物修复石油化工有机污染土壤技术”(2022S042); 茂名绿色化工研究院“扬帆计划”2022年度“应用创新”项目“香蕉秸秆发酵肥固定化微生物强化修复多环芳烃污染土壤研究”(MMGCIRI-2022YFJH-Y-015)

Experimental Study on the Struvite Crystallization on Composting of Banana Stalk

TENG Qing1(), LIN Xuanjie2, LIU Wei1   

  1. 1 School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000
    2 Maoming Yingfeng Environmental Water Treatment Technology Co., Ltd., Maoming, Guangdong 525000
  • Received:2023-04-06 Revised:2023-08-24 Published-:2024-03-15 Online:2024-03-10

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摘要：

香蕉秸秆作为一种农业废弃物，往往被农户直接丢弃而造成环境污染，为促进香蕉秸秆的循环利用，在香蕉秸秆堆肥过程中添加氯化镁和磷酸二氢钾，将香蕉秸秆制成含有磷酸铵镁的优质肥料，实现其资源化。试验设2个处理，空白组（香蕉秸秆+EM堆肥菌），试验组（香蕉秸秆+EM堆肥菌+氯化镁+磷酸二氢钾），每个处理3个平行。结果表明：堆肥结束时，试验组养分含量显著高于空白组养分含量，空白组和试验组的碱解氮含量分别为996.8 mg/kg和1974.0 mg/kg，试验组的碱解氮含量约是空白组的2倍；空白组和试验组的有效磷含量分别为0.53 g/kg和12.03 g/kg，分别占全磷含量的7.91%和38.35%。在香蕉秸秆堆肥中添加氯化镁和磷酸二氢钾可以有效减少氮磷的流失，增加堆肥产品中氮磷的含量，能有效实现香蕉秸秆的资源化。

关键词: 香蕉秸秆, 鸟粪石, 堆肥, 养分, 有机肥

Abstract:

Banana stalk is an agricultural waste, which is often discarded directly by farmers and further cause environmental pollution. To promote the recycling of banana stalk, magnesium chloride and potassium dihydrogen phosphate were added during the composting process of banana stalk to produce high-quality fertilizer which containing ammonium magnesium phosphate to achieve its resource utilization. The experiment was designed as two treatments, blank treatment (banana straw + EM composting bacteria), experimental treatment (banana straw + EM composting bacteria + magnesium chloride + potassium dihydrogen phosphate), and each treatment was three parallels. The results showed that the nutrient content of the experimental group was significantly higher than that of the blank group at the end of compost. The alkaline nutrient content of the blank treatment and the experimental treatment were 996.8 and 1974.0 mg/kg, respectively. The alkaline nitrogen content of the experimental treatment was about twice that of the blank treatment. The effective phosphorus content of the blank treatment and experimental treatment were 0.53 and 12.03 g/kg, accounting for 7.91% and 38.35% of the total phosphorus content, respectively. Adding magnesium chloride and potassium dihydrogen phosphate to banana stalk compost can effectively reduce the loss of nitrogen and phosphorus, increases the content of nitrogen and phosphorus in compost products, and effectively realizes the resource utilization of banana stalk.

Key words: banana stalk, struvite, compost, nutrient, organic fertilizer