Long-term biochar addition significantly decreases rice rhizosphere available phosphorus and its release risk to the environment
Hao Chen,
Jiahui Yuan,
Guanglei Chen,
Xu Zhao,
Shenqiang Wang,
Dengjun Wang,
Lei Wang,
Yujun Wang,
Yu Wang
Affiliations
Hao Chen
State Key Laboratory of Soil and Sustainable Agriculture, Changshu National Agro-Ecosystem Observation and Research Station, Institute of Soil Science, Chinese Academy of Sciences
Jiahui Yuan
Heilongjiang Academy of Black Soils Conservation and Utilization, Key Laboratory of Soil Environment and Plant Nutrition of Heilongjiang Province, Heilongjiang Academy of Agricultural Sciences
Guanglei Chen
State Key Laboratory of Soil and Sustainable Agriculture, Changshu National Agro-Ecosystem Observation and Research Station, Institute of Soil Science, Chinese Academy of Sciences
Xu Zhao
State Key Laboratory of Soil and Sustainable Agriculture, Changshu National Agro-Ecosystem Observation and Research Station, Institute of Soil Science, Chinese Academy of Sciences
Shenqiang Wang
State Key Laboratory of Soil and Sustainable Agriculture, Changshu National Agro-Ecosystem Observation and Research Station, Institute of Soil Science, Chinese Academy of Sciences
Dengjun Wang
School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University
Lei Wang
Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment
Yujun Wang
State Key Laboratory of Soil and Sustainable Agriculture, Changshu National Agro-Ecosystem Observation and Research Station, Institute of Soil Science, Chinese Academy of Sciences
Yu Wang
State Key Laboratory of Soil and Sustainable Agriculture, Changshu National Agro-Ecosystem Observation and Research Station, Institute of Soil Science, Chinese Academy of Sciences
Highlights Long-term (9-years) biochar amendment field and greenhouse pot experiments were conducted. DGT/DIFS/SPRRI were used to in-situ assess P availability, resupply, and release risk to the environment. Long-term biochar addition significantly decreased rice rhizosphere available P and its release risk to the environment. Fe/Al-P and unavailable P dominated the mobility and resupply of P.
