Biochar Can Partially Substitute Fertilizer for Rice Production in Acid Paddy Field in Southern China
Biochar application has been confirmed as an efficient way to increase the productivity of the agricultural system. However, the potential of biochar combined with reducing fertilization on the yield, and the fertilizer utilization efficiency of the rice (<i>Oryza sativa</i>) farming sys...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-05-01
|
| Series: | Agronomy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4395/13/5/1304 |
| _version_ | 1797601526613540864 |
|---|---|
| author | Shasha Qin Feilong Rong Manyun Zhang Guirui Su Wei Wang Liqun Wu Aiping Wu Falin Chen |
| author_facet | Shasha Qin Feilong Rong Manyun Zhang Guirui Su Wei Wang Liqun Wu Aiping Wu Falin Chen |
| author_sort | Shasha Qin |
| collection | DOAJ |
| description | Biochar application has been confirmed as an efficient way to increase the productivity of the agricultural system. However, the potential of biochar combined with reducing fertilization on the yield, and the fertilizer utilization efficiency of the rice (<i>Oryza sativa</i>) farming system on acidic soil remains to be further studied. Field micro-plot experiments with two factors were performed in 2018 and 2019 to evaluate the responses of the rice yield and nutrient utilization to the combined application of biochar (60, 80, and 100 t/ha) and fertilizer reduction (70%, 85%, and standard doses of N-P-K fertilizer). Taoyouxiangzhan and Taiyou 553 were used in the late growing season of 2018 and 2019, respectively. The results showed that compared with the control without adding biochar under standard fertilization, 70% doses of fertilizer application had no negative effects on the yield and the N, P, and K accumulation of rice after biochar application. K accumulation of rice increased with the increase of biochar application. The partial productivity of N, P, and K fertilizers increased as the fertilizer was decreased. The agronomic efficiency of N, P, and K fertilizers significantly increased after the combined applications of biochar and fertilizer. In both years, micro-plots with 70% doses of fertilizer had the highest N and P physiological efficiency, as well as K physiological efficiency in 2019. Compared with the control under standard fertilization, utilization efficiency of N, P, and K fertilizer under different biochar and fertilizer combinations significantly increased by 34.24~75.48%, 27.44~84.84%, and 78.52~166.70%, respectively. To sum up, biochar can partially substitute fertilizer for rice production in acid paddy fields in southern China. When the amount of biochar added is ≥60 t/ha, 70% doses of fertilizer application can still ensure the nutrient absorption of rice, improve the fertilizer utilization efficiency, and ensure the stable yield of rice. |
| first_indexed | 2024-03-11T04:02:04Z |
| format | Article |
| id | doaj.art-da8e6dc70c574bb79f07234eefa0baf0 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-11T04:02:04Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-da8e6dc70c574bb79f07234eefa0baf02023-11-18T00:06:14ZengMDPI AGAgronomy2073-43952023-05-01135130410.3390/agronomy13051304Biochar Can Partially Substitute Fertilizer for Rice Production in Acid Paddy Field in Southern ChinaShasha Qin0Feilong Rong1Manyun Zhang2Guirui Su3Wei Wang4Liqun Wu5Aiping Wu6Falin Chen7Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, ChinaHunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, ChinaHunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, ChinaHunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, ChinaHunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, ChinaHunan Jinjian Seed Industry Science & Technology Co., Ltd., Changsha 410126, ChinaHunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, ChinaHunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, ChinaBiochar application has been confirmed as an efficient way to increase the productivity of the agricultural system. However, the potential of biochar combined with reducing fertilization on the yield, and the fertilizer utilization efficiency of the rice (<i>Oryza sativa</i>) farming system on acidic soil remains to be further studied. Field micro-plot experiments with two factors were performed in 2018 and 2019 to evaluate the responses of the rice yield and nutrient utilization to the combined application of biochar (60, 80, and 100 t/ha) and fertilizer reduction (70%, 85%, and standard doses of N-P-K fertilizer). Taoyouxiangzhan and Taiyou 553 were used in the late growing season of 2018 and 2019, respectively. The results showed that compared with the control without adding biochar under standard fertilization, 70% doses of fertilizer application had no negative effects on the yield and the N, P, and K accumulation of rice after biochar application. K accumulation of rice increased with the increase of biochar application. The partial productivity of N, P, and K fertilizers increased as the fertilizer was decreased. The agronomic efficiency of N, P, and K fertilizers significantly increased after the combined applications of biochar and fertilizer. In both years, micro-plots with 70% doses of fertilizer had the highest N and P physiological efficiency, as well as K physiological efficiency in 2019. Compared with the control under standard fertilization, utilization efficiency of N, P, and K fertilizer under different biochar and fertilizer combinations significantly increased by 34.24~75.48%, 27.44~84.84%, and 78.52~166.70%, respectively. To sum up, biochar can partially substitute fertilizer for rice production in acid paddy fields in southern China. When the amount of biochar added is ≥60 t/ha, 70% doses of fertilizer application can still ensure the nutrient absorption of rice, improve the fertilizer utilization efficiency, and ensure the stable yield of rice.https://www.mdpi.com/2073-4395/13/5/1304biocharfertilizer reductionyieldnutrient utilizationacid paddy field |
| spellingShingle | Shasha Qin Feilong Rong Manyun Zhang Guirui Su Wei Wang Liqun Wu Aiping Wu Falin Chen Biochar Can Partially Substitute Fertilizer for Rice Production in Acid Paddy Field in Southern China Agronomy biochar fertilizer reduction yield nutrient utilization acid paddy field |
| title | Biochar Can Partially Substitute Fertilizer for Rice Production in Acid Paddy Field in Southern China |
| title_full | Biochar Can Partially Substitute Fertilizer for Rice Production in Acid Paddy Field in Southern China |
| title_fullStr | Biochar Can Partially Substitute Fertilizer for Rice Production in Acid Paddy Field in Southern China |
| title_full_unstemmed | Biochar Can Partially Substitute Fertilizer for Rice Production in Acid Paddy Field in Southern China |
| title_short | Biochar Can Partially Substitute Fertilizer for Rice Production in Acid Paddy Field in Southern China |
| title_sort | biochar can partially substitute fertilizer for rice production in acid paddy field in southern china |
| topic | biochar fertilizer reduction yield nutrient utilization acid paddy field |
| url | https://www.mdpi.com/2073-4395/13/5/1304 |
| work_keys_str_mv | AT shashaqin biocharcanpartiallysubstitutefertilizerforriceproductioninacidpaddyfieldinsouthernchina AT feilongrong biocharcanpartiallysubstitutefertilizerforriceproductioninacidpaddyfieldinsouthernchina AT manyunzhang biocharcanpartiallysubstitutefertilizerforriceproductioninacidpaddyfieldinsouthernchina AT guiruisu biocharcanpartiallysubstitutefertilizerforriceproductioninacidpaddyfieldinsouthernchina AT weiwang biocharcanpartiallysubstitutefertilizerforriceproductioninacidpaddyfieldinsouthernchina AT liqunwu biocharcanpartiallysubstitutefertilizerforriceproductioninacidpaddyfieldinsouthernchina AT aipingwu biocharcanpartiallysubstitutefertilizerforriceproductioninacidpaddyfieldinsouthernchina AT falinchen biocharcanpartiallysubstitutefertilizerforriceproductioninacidpaddyfieldinsouthernchina |