The effects of biochar soil amendment on rice growth may vary greatly with rice genotypes
文献类型： 外文期刊
作者： Liu, Minglong 1 ; Ke, Xianlin 1 ; Liu, Xiaoyu 1 ; Fan, Xiaorong 1 ; Xu, Youzun 4 ; Li, Lianqing 1 ; Solaiman, Zakaria M. 2 ; Pan, Genxing 1 ;
作者机构： 1.Nanjing Agr Univ, Inst Resource Ecosyst & Environm Agr, Nanjing 210095, Peoples R China
2.Univ Western Australia, UWA Sch Agr & Environm, Perth, WA 6009, Australia
3.Univ Western Australia, UWA Inst Agr, Perth, WA 6009, Australia
4.Anhui Acad Agr Sci, Rice Res Inst, Hefei, Peoples R China
关键词： Rice; Biochar; Cultivar mutants; Genotypes; Nutrient uptake; Agronomic traits
期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：10.753； 五年影响因子：10.237 ）
ISSN： 0048-9697
年卷期： 2022 年 810 卷
页码：
收录情况： SCI
摘要： While plant growth promotion with increased nutrient uptake had been well addressed for biochar soil amendment in agriculture, there was limited knowledge on the variation of such effects with crop genotypes. In a rice field experiment without and with biochar soil amendment at 20 t ha(-1), 19 mutants of a rice cultivar Wuyunjing 7 (Oryza sativa L) were tested for plant growth in split plots respectively. At harvest, the biomass of grain, stem and leaves were measured and soil and plant samples were collected for measuring N, P and K nutrients. Across the 19 mutants, relative change with biochar soil amendment varied in a range of -41.6% to + 35.6% for biomass production and agronomic traits, and - 87.0% to + 117% for nutrient accumulation. For the nutrients content, the relative change for N was seen in a narrow range of -29.4% to +16.6%, being similar among grain, leaf and shoot samples while that for Pin a wide range of - 109% to +105%. With factor analysis, variation of biomass and nutrient uptake was least explained with biochar effect (up to 7.0%) but largely by genotype effect (mostly by 40-70%). However, the genotype x biochar interaction effect could also explain 10-40% of the total variations though the interaction explained 40-70% of leaf P variation. Therefore, mutant and mutant x biochar interactions dominated the agronomic variation of rice production of the Wuyunjing 7 cultivar. Furthermore, across the traits analyzed, genotype effects were shown very significantly but negatively correlated to biochar effects. In other words, biochar soil amendment provided little growth or nutrient enhancement for those mutants bred for high efficiency. Hence, genotype selection should be considered in optimizing prioritizing biochar application in crop production. Of course, variation of biochar effect with crop genotypes deserved further plant physio-ecological studies.
- 相关文献
作者其他论文 更多>>
-
Molecular Mechanisms of Grain Chalkiness Variation in Rice Panicles
作者：Li, Zhong;Xi, Min;Xu, Youzun;Sun, Xueyuan;Tu, Debao;Zhou, Yongjin;Ji, Yalan;Yang, Linsheng
关键词：rice (
Oryza sativa L.); grain filling rate; grain chalkiness; gene expression; starch -
Co-Benefits of Yield and Nitrogen Use Efficiency Gains Through Combined Use of Controlled-Release Urea and Conventional Urea in Rice
作者：Yang, Linsheng;Tu, Debao;Sun, Xueyuan;Zhou, Yongjin;Xu, Youzun;Li, Zhong;Wu, Wenge;Xi, Min;Lakshmanan, Prakash;Liu, Xiaoyan;Luo, Ting;Lakshmanan, Prakash
关键词：controlled-release nitrogen fertilizer; nitrogen use efficiency; rice; yield
-
Positional variations of rice protein compositions accumulation within a panicle during the grain filling
作者：Xi, Min;Li, Zhong;Liang, Shuang;Xu, Youzun;Zhou, Yongjin;Tu, Debao;Sun, Xueyuan;Yang, Linsheng
关键词：Rice; Protein content; Protein component; Positional variations; Grain filling
-
Yield Loss of a Rice Ratoon Crop is Affected by Nitrogen Supply in a Mechanized Ratooning System
作者：Zhou, Yongjin;Ji, Yanlan;Li, Zhong;Tu, Debao;Xi, Min;Xu, Youzun
关键词：border effect; nitrogen rate; physiological mechanism; ratoon rice; yield loss
-
Carbon footprint research and mitigation strategies for rice-cropping systems in China: a review
作者：Ji, Yalan;Wu, Wenge;Zou, Huawen;Ji, Yalan;Zhou, Yongjin;Li, Zhong;Feng, Kaixuan;Sun, Xueyuan;Xu, Youzun;Wu, Wenge
关键词：rice-cropping system; carbon footprint; greenhouse gas emissions; emission reduction; China
-
Energy use and carbon footprint in response to the transition from indica rice to japonica rice cropping systems in China
作者：Xi, Min;Xu, Youzun;Zhou, Yongjin;Tu, Debao;Li, Zhong;Sun, Xueyuan;Wu, Chenyang;Wu, Wenge
关键词：Rice cropping system; Energy use efficiency; Carbon footprint; Economic benefits
-
Optimization of sowing dates for enhanced rice yield: insights from field experiments in the middle and lower reaches of the Yangtze River, China
作者：Ji, Yalan;Zou, Huawen;Ji, Yalan;Xu, Youzun;Sun, Xueyuan;Hassan, Muhammad Ahmad;Zhou, Yongjin;Li, Zhong
关键词：Indica rice; Temperature use efficiency; Solar radiation use efficiency; Grain yield; China
