Details

Autor(en) / Beteiligte

• Zhao, Zhipeng
• Wang, Bing
• Zhang, Xueyang
• Xu, Huajie
• Cheng, Ning
• Feng, Qianwei
• Zhao, Ruohan
• Gao, Yining
• Wei, Ming

Titel

Release characteristics of phosphate from ball-milled biochar and its potential effects on plant growth

Ist Teil von

• The Science of the total environment, 2022-05, Vol.821, p.153256, Article 153256

Ort / Verlag

Netherlands: Elsevier B.V

Erscheinungsjahr

2022

Quelle

MEDLINE

Beschreibungen/Notizen

• Ball-milled biochar could potentially supply phosphorus, an essential element for plant growth. To realize resource reuse and phosphorus recovery, three feedstocks (rice straw, distillers grains, and Eupatorium adenophorum) were used to prepare ball-milled biochar to evaluate its release characteristics of phosphorus and potential effects on germination and growth. The results showed that the phosphate release performance of ball-milled distillers grains biochar (DM) at 300 and 600 °C was better than that of other biochars ball-milled for 12 h. The DM prepared at 600 °C and incubated for 12 (DM-12) or 24 h (DM-24) had the best phosphate release capacity. The solution with pH 3.0 was beneficial to the release of phosphate from DM-12. The pseudo-second-order model could better fit the phosphate release of DM-12. A germination and seedling growth experiment suggested that adding 2.5 wt% DM-12 was beneficial to the height of mung beans. This study shows that DM-12 can be used as a slow-release fertilizer for the growth of mung beans, which provides a new way for resource utilization of distillers grains and phosphorus-rich biochar. [Display omitted] •Ball milling can accelerate the release of phosphate from P-containing biochars.•Ball-milled distillers grains biochar (DM) shows good phosphate release capacity.•The pseudo-second-order model can better fit the phosphate release of DM-12.•Addition of 2.5 wt% DM-12 promotes the height of mung beans.•Adding less than 5 wt% of DG does not affect the growth of mung beans.