PREPARATION AND PROPERTY ANALYSIS OF TWO COMPOUND HERBICIDE-DEGRADING MICROBIAL AGENTS

LIN Jingou

doi:10.13205/j.hjgc.202208025

Volume 40 Issue 8

Nov. 2022

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LIN Jingou. PREPARATION AND PROPERTY ANALYSIS OF TWO COMPOUND HERBICIDE-DEGRADING MICROBIAL AGENTS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(8): 178-184. doi: 10.13205/j.hjgc.202208025

Citation:

LIN Jingou. PREPARATION AND PROPERTY ANALYSIS OF TWO COMPOUND HERBICIDE-DEGRADING MICROBIAL AGENTS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(8): 178-184. doi: 10.13205/j.hjgc.202208025

LIN Jingou. PREPARATION AND PROPERTY ANALYSIS OF TWO COMPOUND HERBICIDE-DEGRADING MICROBIAL AGENTS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(8): 178-184. doi: 10.13205/j.hjgc.202208025

Citation:

LIN Jingou. PREPARATION AND PROPERTY ANALYSIS OF TWO COMPOUND HERBICIDE-DEGRADING MICROBIAL AGENTS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(8): 178-184. doi: 10.13205/j.hjgc.202208025

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PREPARATION AND PROPERTY ANALYSIS OF TWO COMPOUND HERBICIDE-DEGRADING MICROBIAL AGENTS

doi: 10.13205/j.hjgc.202208025

LIN Jingou

Fujian Province Xiamen Environmental Monitoring Central Station, Xiamen 361022, China

Received Date: 2021-12-19
Publish Date: 2022-11-08

Abstract

Abstract

The research and development of herbicide-degrading inoculants is an effective way to solve herbicide residues in a green and low-carbon strategy. In this study, coconut bran carrier (corn flour, coconut bran, kaolin, white sugar) and sodium alginate carrier (sodium alginate, kaolin, glycerin) were used to prepare Penicillium agents. The results showed that the coconut bran carriers were powdery, finely crushed and soft, and were brown or white-brown, while the sodium alginate beads carrier was round granular, hard, and white or yellowish. After one month’s storage, the minimum number of effective viable fungi in both agents was 2.7×10¹⁰/g and 1.7×10¹⁰/g, higher than the requirements in the microbial inoculum standard of the Microbial Inoculants in Agriculture (GB 20287—2006). The number of molds and the total number of bacteria in the sodium alginate beads carrier was lower than that of the carrier prepared from coconut bran, and the hybrid bacteria rate was 14.3%~17.3%. The water content of coconut bran carrier was generally low, ranging from 2.88%~5.27%, and the water content of sodium alginate beads carrier was 11.53%~13.96%, which was lower than 35.0% (powder) and 20.0% (granule) in GB 20287—2006. The fineness mass fraction in both carriers exceeded 90%, higher than 80.0% in GB 20287—2006. Based on the national standard requirement of the pH value between 5.5~8.5, the best mixing ratio of corn flour, coconut bran, kaolin and white sugar in the coconut bran carrier was 10∶8∶6∶3 (by mass), wherever the sodium alginate beads carrier was: sodium alginate 2% (W/V), kaolin 1% (W/V), glycerin 60% (W/W). Comparing the two carriers by the effective number of viable microbial and hybrid bacteria, the coconut peat carrier was the relatively feasible carrier for herbicide degrading agents. The findings provide good technical support for the prevention and control of herbicide non-point source pollution.
- solid microbial agents,
- coconut peat,
- sodium alginate carrier,
- herbicide degrading fungi

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References(34)

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