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2021 Volume 34 Issue 1
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GONG Jie, CHEN Yu-xin, FU Xiao-qiu, et al. Effects of 3 Soil Acidification Amendment Agents on Agronomic Characters of Tobacco Plants, pH of Acidic Soil and Occurrence of Bacterial Wilt[J]. PLANT HEALTH AND MEDICINE, 2021, (1): 35-40. doi: 10.13718/j.cnki.zwys.2021.01.007
Citation: GONG Jie, CHEN Yu-xin, FU Xiao-qiu, et al. Effects of 3 Soil Acidification Amendment Agents on Agronomic Characters of Tobacco Plants, pH of Acidic Soil and Occurrence of Bacterial Wilt[J]. PLANT HEALTH AND MEDICINE, 2021, (1): 35-40. doi: 10.13718/j.cnki.zwys.2021.01.007
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Effects of 3 Soil Acidification Amendment Agents on Agronomic Characters of Tobacco Plants, pH of Acidic Soil and Occurrence of Bacterial Wilt

  • 1. School of Plant Protection, Southwest University, Chongqing 400715, China;

  • 2. Pengshui Branch of Chongqing Tobacco Company, Pengshui Chongqing 409699, China

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  • Due to long-term continuous cropping obstacles and unreasonable continuous application of chemical fertilizers and other factors, the acidification of tobacco-growing soil has caused tobacco bacterial wilt to become more serious. As a soil acidification amendment agent, plant ash can alleviate soil acidification. It also has many functions such as improving soil physical structure, increasing nutrient utilization, and enhancing soil acid-base buffering capacity. In this study, the method of ridging and split application of plant ash was selected, and a long-term acidification tobacco field was used as the research object to evaluate the effects of different treatments on soil pH adjustment, tobacco growth and bacterial wilt. The results showed that the treatments of plant ash powder, plant ash granules and oyster shell powder all had a certain promotion effect on tobacco plants; that 20 days after the treatment with plant ash powder, plant ash granules and oyster shell powder, soil pH increased by 0.40, 0.63 and 0.40, respectively, compared with that in the blank control, and plant ash granules had the best improvement effect on acidified soil; and that 60 days after treatment, soil pH was increased by 0.42, 0.30 and 0.08, respectively.Plant ash powder had the best improvement effect on acidified soil. Calculation based on the disease index AUDPC of tobacco bacterial wilt indicated that AUDPC plant ash powder
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Effects of 3 Soil Acidification Amendment Agents on Agronomic Characters of Tobacco Plants, pH of Acidic Soil and Occurrence of Bacterial Wilt

  • Received Date: 05/01/2021

Abstract: Due to long-term continuous cropping obstacles and unreasonable continuous application of chemical fertilizers and other factors, the acidification of tobacco-growing soil has caused tobacco bacterial wilt to become more serious. As a soil acidification amendment agent, plant ash can alleviate soil acidification. It also has many functions such as improving soil physical structure, increasing nutrient utilization, and enhancing soil acid-base buffering capacity. In this study, the method of ridging and split application of plant ash was selected, and a long-term acidification tobacco field was used as the research object to evaluate the effects of different treatments on soil pH adjustment, tobacco growth and bacterial wilt. The results showed that the treatments of plant ash powder, plant ash granules and oyster shell powder all had a certain promotion effect on tobacco plants; that 20 days after the treatment with plant ash powder, plant ash granules and oyster shell powder, soil pH increased by 0.40, 0.63 and 0.40, respectively, compared with that in the blank control, and plant ash granules had the best improvement effect on acidified soil; and that 60 days after treatment, soil pH was increased by 0.42, 0.30 and 0.08, respectively.Plant ash powder had the best improvement effect on acidified soil. Calculation based on the disease index AUDPC of tobacco bacterial wilt indicated that AUDPC plant ash powder

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