Crop residue return reduces cotton Verticillium wilt by altering potassium nutrition and root exudates
文献类型： 外文期刊
作者： Zha, Li 1 ; Yang, Changqin 2 ; Fang, Guowen 1 ; Zhi, Mengling 1 ; Chen, Binglin 1 ; Zhou, Zhiguo 1 ; Meng, Yali 1 ;
作者机构： 1.Nanjing Agr Univ, Coll Agr, 1 Weigang, Nanjing 210095, Jiangsu, Peoples R China
2.Jiangsu Acad Agr Sci, Nanjing 210095, Jiangsu, Peoples R China
关键词： Residue retention; Potassium (K) nutrient; Verticillium wilt; Root exudates; Cotton (Gossypium hirsutum L.)
期刊名称：APPLIED SOIL ECOLOGY （ 影响因子：5.509； 五年影响因子：5.678 ）
ISSN： 0929-1393
年卷期： 2022 年 177 卷
页码：
收录情况： SCI
摘要： Crop residue return can improve soil fertility and crop yield, but it may also increase the risk of soil borne disease. Here, we investigated cotton biomass, Verticillium wilt incidence, root exudates, soil Verticillium dahliae abundance, soil available potassium (K) concentrations, and leaf K concentrations in two 8-year residue management experiments under wheat-cotton rotation in Nanjing and Dafeng of China. Six treatments were compared based on uniform rates of nitrogen and phosphate fertilizers: three residue return treatments without K fertilizer (wheat residue, WR; cotton residue, CR; wheat residue plus cotton residue, WR + CR), two K fertilizer treatments (150 kg K2O ha(-1), K150 and 300 kg K2O ha(-1), K300), and CK treatment without residue or K fertilizer. Our results showed that the incidence and disease index of Verticillium wilt were the lowest in K300, followed by K150, WR + CR, WR or CR, and the highest in CK at both sites. The responses of cotton biomass, leaf K concentrations and soil available K concentrations to different treatments were generally opposite to that of the disease severity. The disease index was significantly negatively correlated with the concentration of K in soil or cotton leaf, while it had significant correlations with root exudates but not soil microbe abundances. Structural equation modeling indicated that K nutrition affected cotton Verticillium wilt disease index by affecting alanine, glutamate and total phenol in cotton root exudates. These findings suggested that K nutrition status was the key factor affecting the occurrence of cotton Verticillium wilt, and residue retention could increase cotton resistance to Verticillium dahliae by improving soil K availability and subsequently regulating specific root exudates.
- 相关文献
作者其他论文 更多>>
-
Thidiazuron combined with cyclanilide modulates hormone pathways and ROS systems in cotton, increasing defoliation at low temperatures
作者：Shu, Hongmei;Sun, Shangwen;Wang, Xiaojing;Yang, Changqin;Zhang, Guowei;Li, Zhikang;Liang, Ting;Liu, Ruixian;Chen, Jian;Han, Huanyong
关键词：cyclanilide; thidiazuron; cotton; low temperature; defoliation
-
Straw return increases crop production by improving soil organic carbon sequestration and soil aggregation in a long-term wheat- cotton cropping system
作者：Yang, Changqin;Wang, Xiaojing;Zhang, Guowei;Shu, Hongmei;Liu, Ruixian;Li, Jianan;Hu, Wei;Han, Huanyong;Guo, Zichun
关键词：straw return; crop yields; SOC; soil aggregates; wheat-cotton cropping system
-
Barley Straw Combined with Urea and Controlled-Release Nitrogen Fertilizer Improves Lint Yield and Nitrogen Utilization of Field-Seeded Cotton
作者：Yang, Changqin;Zhang, Guowei;Shu, Hongmei;Wang, Xiaojing;Liu, Ruixian;Yang, Changqin;Zhang, Guowei;Shu, Hongmei;Wang, Xiaojing;Liu, Ruixian;Li, Jianan;Hu, Wei
关键词：straw management; N-fertilization strategy; field-seeded cotton; lint yield; N-utilization
-
Low Temperature Inhibits the Defoliation Efficiency of Thidiazuron in Cotton by Regulating Plant Hormone Synthesis and the Signaling Pathway
作者：Shu, Hongmei;Wang, Xiaojing;Yang, Changqin;Zhang, Guowei;Liu, Ruixian;Shu, Hongmei;Yang, Changqin;Zhang, Guowei;Liu, Ruixian;Sun, Shangwen;Meng, Yali;Wang, Youhua;Hu, Wei
关键词：TDZ; low temperature; cotton leaf abscission; abscission zone; transcriptome; plant hormones
-
The effects of straw-returning and inorganic K fertilizer on the carbon-nitrogen balance and reproductive growth of cotton
作者：Hu, Wei;Zhao, Wenqing;Zhou, Zhiguo;Yu, Chaoran;Liu, Ruixian;Yang, Changqin
关键词：Gossypium hirsutum L; Crop straw; Inorganic potassium fertilizer; Reproductive growth; C-N balance
-
Long-term ditch-buried straw return alters soil carbon sequestration, nitrogen availability and grain production in a rice-wheat rotation system
作者：Zhai, Silong;Xu, Chaofan;Wu, Yongcheng;Yang, Haishui;Liu, Jian;Meng, Yali
关键词：China; straw return; soil nitrogen availability; soil carbon pool; yield; rice wheat double cropping
-
Effects of three phenolic compounds on mitochondrial function and root vigor of cotton (Gossypium hirsutum L.) seedling roots
作者：Zhang, Guowei;Yang, Changqin;Liu, Ruixian;Ni, Wanchao;Zhang, Guowei
关键词：Cotton; Phenolic compounds; Mitochondrial function; Root vigor; Root
