[Objectives]This study was conducted to understand the relationship between soil pH and soil physical and chemical properties during tobacco planting.[Methods]Through a field experiment,the pH value of tobacco-growing...[Objectives]This study was conducted to understand the relationship between soil pH and soil physical and chemical properties during tobacco planting.[Methods]Through a field experiment,the pH value of tobacco-growing soil,the contents of mineral nutrients(ammonium nitrogen,alkali-hydrolyzable nitrogen,available potassium,available phosphorus),soil bulk density and porosity were investigated.[Results]The pH value of the soil after tobacco planting increased,and the contents of ammonium nitrogen,alkali-hydrolyzable nitrogen,and available potassium were closely related to the change of pH value.The bulk density of the tobacco-planting soil decreased and the porosity increased.Planting flue-cured tobacco had certain impacts on soil pH,soil bulk density and other physical and chemical properties.[Conclusions]This study provides a theoretical basis for the investigation of the fertilization laws in the process of tobacco planting and the selection of subsequent crops.展开更多
[Objectives] This study was conducted to understand soil p H changes during tobacco planting and its reasons. [Methods]Soil samples were collected from Jingdong,Jinggu and Zhenyuan tobacco-planting areas of Pu'er ...[Objectives] This study was conducted to understand soil p H changes during tobacco planting and its reasons. [Methods]Soil samples were collected from Jingdong,Jinggu and Zhenyuan tobacco-planting areas of Pu'er City before tobacco planting and during different growth stages of tobacco. [Results] Planting flue-cured tobacco changed the soil p H value. First,it was affected by the nicotine produced by the root system of tobacco plants. Second,it was affected by the type of soil. [Conclusions] This study has certain theoretical guiding significance for the cultivation management of flue-cured tobacco and the arrangement of ensuing crops.展开更多
基金School-level Project of Pu'er University (K2017019).
文摘[Objectives]This study was conducted to understand the relationship between soil pH and soil physical and chemical properties during tobacco planting.[Methods]Through a field experiment,the pH value of tobacco-growing soil,the contents of mineral nutrients(ammonium nitrogen,alkali-hydrolyzable nitrogen,available potassium,available phosphorus),soil bulk density and porosity were investigated.[Results]The pH value of the soil after tobacco planting increased,and the contents of ammonium nitrogen,alkali-hydrolyzable nitrogen,and available potassium were closely related to the change of pH value.The bulk density of the tobacco-planting soil decreased and the porosity increased.Planting flue-cured tobacco had certain impacts on soil pH,soil bulk density and other physical and chemical properties.[Conclusions]This study provides a theoretical basis for the investigation of the fertilization laws in the process of tobacco planting and the selection of subsequent crops.
基金Supported by University-level Project of Pu'er University (No. k2017019)。
文摘[Objectives] This study was conducted to understand soil p H changes during tobacco planting and its reasons. [Methods]Soil samples were collected from Jingdong,Jinggu and Zhenyuan tobacco-planting areas of Pu'er City before tobacco planting and during different growth stages of tobacco. [Results] Planting flue-cured tobacco changed the soil p H value. First,it was affected by the nicotine produced by the root system of tobacco plants. Second,it was affected by the type of soil. [Conclusions] This study has certain theoretical guiding significance for the cultivation management of flue-cured tobacco and the arrangement of ensuing crops.
