Effects of different formulations and application methods of Bacillus velezensis HN-Q-8 on yield and quality of potato
GAO Yuzhu
FENG Jiayi
ZHANG Dai
DING Lili
PAN Yang
ZHU Jiehua
YANG Zhihui
Abstract：To explore the effects of different formulations and application methods of of Bacillus velezensis HN-Q-8 on potato yield and quality,two formulations—organic bacterial fertilizer and wettable powder were used,along with multi-ple application approaches.These included applying organic bacterial fertilizer before sowing and spraying the wettable powder at the bud stage and full bloom stage.The results showed that applying 15000 kg·hm-2 of organic bacterial fertil-izer before sowing resulted in the highest potato yield of 30.97 t·hm-2,with stem diameter and SPAD value at the bud stage reaching 1.75 cm and 39.47,respectively.Compared with the control group without organic bacterial fertilizer,these represented significant increases of 17.11%,5.37%,and 26.80%,respectively.Additionally,the HN-Q-8 wettable powder significantly improved tuber quality.Spraying 2.25 kg·hm-2 of the powder once at both the bud stage and full bloom stage significantly increased tuber dry matter,starch,and protein content by 7.98%,9.44%,and 40.84%,respectively,compared with the water-sprayed control.This study provides practical application methods for the use of microbial fertilizers and agents in potato production to enhance yield and quality.
Keywords：PotatoMicrobial fertilizerYieldQuality
Publication Date：2026-02-05
Online Publishing Date：2026-03-10(First online date of this platform, not the publication date of the document)
Pages：6( 190-195 )