Title:
METHOD FOR COLLABORATIVELY IMPROVING ACID SOIL BY CHARCOAL AND BIOGAS
Document Type and Number:
WIPO Patent Application WO/2021/179506
Kind Code:
A1
Abstract:
A soil improvement method, particularly a method for collaboratively improving acid soil by charcoal and biogas, relating to the technical fields of agricultural resource protection and agricultural waste resource cyclic utilization. The method for collaboratively improving acid soil by charcoal and biogas comprises: preparing biomass charcoal using corn straw; using biogas slurry generated in a farm after anaerobic fermentation; and according to nutritional requirements of corn at different growth stages, using biomass charcoal in combination with biogas slurry to achieve collaborative improvement of acid soil. Both corn straw biomass charcoal and biogas slurry are mostly weakly alkaline and they are used in combination to condition acid soil, an improvement effect of acid soil is obvious, and the advantage of charcoal and biogas in collaborative improvement of acid soil is exerted. Farming solid waste and corn straw are used to prepare biomass charcoal or generate biogas slurry, thereby turning waste into wealth.
Inventors:
SHAN SHENGDAO (CN)
CHAI YANJUN (CN)
CHAI YANJUN (CN)
Application Number:
PCT/CN2020/102510
Publication Date:
September 16, 2021
Filing Date:
July 17, 2020
Export Citation:
Assignee:
UNIV ZHEJIANG SIENCE & TECHNOLOGY (CN)
International Classes:
C05G3/80; A01C21/00; C01B32/05
Foreign References:
| CN103467173A | 2013-12-25 | |||
| CN110591718A | 2019-12-20 |
Other References:
ZHENG JIAN, LI XIN-YI, MA JING, MA BIAO, WANG YAN, WANG LEI: "Effect of biogas slurry combined with straw biochar on soil organic matter and total nitrogen content", JOURNAL OF AGRO-ENVIRONMENT SCIENCE, vol. 39, no. 5, 1 May 2020 (2020-05-01), pages 1111 - 1121, XP055846211, ISSN: 1672-2043, DOI: 10.11654/jaes.2019-1255
WANG ZHONGJIANG, WANG ZEYU; ZHANG ZHENG; LIN GUIYING; LIU ZHUO; FENG CUI: "Effect of Biochar on Decomposition Characteristics of Corn Stover Presoaked with Digestate in Soil", TRANSACTION OF THE CHINESE SOCIETY FOR AGRICULTURAL MACHINERY, vol. 49, no. 7, 1 July 2018 (2018-07-01), pages 279 - 285, XP055846217, ISSN: 1000-1298, DOI: 10.6041/j.issn.1000-1298.2018.07.033
WANG ZHONGJIANG, WANG ZEYU; ZHANG ZHENG; LIN GUIYING; LIU ZHUO; FENG CUI: "Effect of Biochar on Decomposition Characteristics of Corn Stover Presoaked with Digestate in Soil", TRANSACTION OF THE CHINESE SOCIETY FOR AGRICULTURAL MACHINERY, vol. 49, no. 7, 1 July 2018 (2018-07-01), pages 279 - 285, XP055846217, ISSN: 1000-1298, DOI: 10.6041/j.issn.1000-1298.2018.07.033
Attorney, Agent or Firm:
HANGZHOU YONGHANG AVIATION UNION PATENT AGENCY CO. LTD. (CN)
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