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2021 Volume 34 Issue 6
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ZHANG Shengwei, JING Yongfeng, ZHUO Xiaoping, et al. Effects of Oyster Potassium Powder on the Growth and Development of Tobacco and on the Physicochemical Properties of the Soil[J]. PLANT HEALTH AND MEDICINE, 2021, (6): 19-23. doi: 10.13718/j.cnki.zwys.2021.06.004
Citation: ZHANG Shengwei, JING Yongfeng, ZHUO Xiaoping, et al. Effects of Oyster Potassium Powder on the Growth and Development of Tobacco and on the Physicochemical Properties of the Soil[J]. PLANT HEALTH AND MEDICINE, 2021, (6): 19-23. doi: 10.13718/j.cnki.zwys.2021.06.004
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Effects of Oyster Potassium Powder on the Growth and Development of Tobacco and on the Physicochemical Properties of the Soil

  • 1. China Tobacco Hunan Industrial Co. Ltd, Changsha 410007, China;

  • 2. Wushan Branch of Chongqing Tobacco Company, Wushan Chongqing 404700, China;

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

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  • A field experiment with random block design was carried out in Wushan County, Chongqing. Oyster potassium powder at 50, 100 or 300 kg/667 m2was applied evenly during the process of ridge-making, and its effects on the growth and development of flue-cured tobacco and soil physicochemical properties were investigated. The results showed that application of oyster potassium powder promoted the growth of tobacco plants, and the promotion effect increased with the increase in treatment dose. Compared with the untreated control, application of oyster potassium powder at 300 kg/667 m2increased plant height, stem circumference, leaf length, leaf width and leaf area of the tobacco plants by 11.2%, 17.6%, 31.3%, 21.7% and 59.6% at the rosetting stage, by 7.6%, 9.9%, 16.1%, 18.8% and 33.8% at the budding stage, and by 7.3%, 5.1%, 9.8%, 3.7% and 14% at the topping stage, respectively. The root weight and the root volume of the treated plants were significantly higher than those of the control, being 801.55 g and 819.48 cm3, respectively. In addition, compared with those of the control, the pH value of soil was significantly increased by 0.4-0.6 units, the content of exchangeable aluminum ions in soil was significantly decreased, and the content of exchangeable calcium and magnesium ions in soil was increased after application of oyster potassium powder (300 kg/667 m2). In conclusion, application of oyster potassium in the ridge-building process can promote tobacco root development and early and rapid growth of the plant.
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Effects of Oyster Potassium Powder on the Growth and Development of Tobacco and on the Physicochemical Properties of the Soil

  • Received Date: 01/11/2021

Abstract: A field experiment with random block design was carried out in Wushan County, Chongqing. Oyster potassium powder at 50, 100 or 300 kg/667 m2was applied evenly during the process of ridge-making, and its effects on the growth and development of flue-cured tobacco and soil physicochemical properties were investigated. The results showed that application of oyster potassium powder promoted the growth of tobacco plants, and the promotion effect increased with the increase in treatment dose. Compared with the untreated control, application of oyster potassium powder at 300 kg/667 m2increased plant height, stem circumference, leaf length, leaf width and leaf area of the tobacco plants by 11.2%, 17.6%, 31.3%, 21.7% and 59.6% at the rosetting stage, by 7.6%, 9.9%, 16.1%, 18.8% and 33.8% at the budding stage, and by 7.3%, 5.1%, 9.8%, 3.7% and 14% at the topping stage, respectively. The root weight and the root volume of the treated plants were significantly higher than those of the control, being 801.55 g and 819.48 cm3, respectively. In addition, compared with those of the control, the pH value of soil was significantly increased by 0.4-0.6 units, the content of exchangeable aluminum ions in soil was significantly decreased, and the content of exchangeable calcium and magnesium ions in soil was increased after application of oyster potassium powder (300 kg/667 m2). In conclusion, application of oyster potassium in the ridge-building process can promote tobacco root development and early and rapid growth of the plant.

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