Research on Plant Protection Technology of High Oleic Acid Peanut Huayu 9111

Zhao Jianxin; Yin Xiangzhen; Bi Jingnan; Li Qiu; Du Long; Li Ying; Liu Xiaona; Yu Hanlin; Gao Zhenggang; Chi Xiaoyuan

doi:10.14083/j.issn.1001-4942.2025.11.019

Abstract：In order to explore the plant protection technology for high oleic peanut,the high oleic peanut variety Huayu 9111 was used as the material,and the plant protection technology experiment was carried out in Yantai City,Shandong Province.The results showed that under the tested plant protection programme,the peanut seedling emergence rate was improved by 7.50 percentage points compared with the conventional pro-gramme and 14.16 percentage points compared with the control group.The average thrips damage rate was re-duced by 1.70 percentage points compared with the conventional programme and 25.80 percentage points com-pared with the control group.The weed control effect was improved by 17.50 percentage points compared with the conventional programme,and was as high as 85.00%.The leaf spot disease control effect was as high as 69.03%at harvest time,which was 62.16 percentage points compared with the conventional programme.The branch length,number of branches and number of pod-bearing branches were all improved,and the number of pod-bearing branches was improved by 15.50%compared with the conventional programme and 37.02%com-pared with the control group.The number of full pods per plant was improved by 22.52%compared with the conventional programme and 50.03%compared with the control group.The yield of the tested group was 6 240 kg/hm2,which was 10.74%higher than that of the conventional group and 30.41%higher than that of the control group.These results were of great significance to the increase of farmers'income and agricultural effi-ciency and the green and safe production of peanut.