Open AccessTebeigai Soil Conditioner Can Increase Eggplant Yield, Reduce Heavy Metal Content and Improve Soil Acidification
Author(s) -
Dongfeng Huang,
Tao Luo,
Yu Li,
Xiaoxuan Qiu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1622/1/012077
Subject(s) - soil conditioner , soil ph , soil acidification , yield (engineering) , agronomy , red soil , chemistry , environmental science , soil water , soil science , biology , materials science , metallurgy
The acidification of farmland soil in the red soil region of South China has led to the decrease of agricultural products, quality and soil degradation, which is in urgent need of improvement. In this paper, a field trial was implemented to study the effect of applying different amount of Tebeigai soil conditioner (namely 750, 1125, 1500, 1875 and 2250 kg/ha) on eggplant’s yield, heavy metal content and basic physical and chemical properties of soil in red soil area. The results showed that: compared with the control treatment, the application of different doses of Tebeigai soil conditioner could increase eggplant yield by 15.5%~55.8%; reduce As content of eggplant fruit by 12.8%~51.8%, Cr content by 33.7%~57.1%, Pb content by 1.9%~19.2%, Cd content by 14.3%~30.4%; at the same time, the soil pH increased by 5.8%~18.6%, exchangeable acid (potential acid) decreased by 37.6%~82.3%; and the contents of available Pb, Cd and Cr were decreased by 7.0% ~ 21.6%, 15.1% ~ 29.6% and 1.0% ~ 21.4%, respectively.