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[Effects of different genotypes soybean and maize intercropping on soil phosphorus fractions and crop phosphorus uptake]. / 不同基因型大豆与玉米间作对土壤磷组分与作物磷吸收的影响.
Zhu, Xiao-Hui; Tan, Jing-Lin; Zhou, Hui-Ying; Wang, Tian-Qi; Zhang, Bing-Bing; Lu, Xing; Tian, Ji-Hui; Liang, Cui-Yue; Tian, Jiang.
Afiliación
  • Zhu XH; 1 College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
  • Tan JL; 2 Key Laboratory of Tropical Agricultural Environment in South China, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China.
  • Zhou HY; 1 College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
  • Wang TQ; 1 College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
  • Zhang BB; 1 College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
  • Lu X; 1 College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
  • Tian JH; 1 College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
  • Liang CY; 1 College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
  • Tian J; 2 Key Laboratory of Tropical Agricultural Environment in South China, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China.
Ying Yong Sheng Tai Xue Bao ; 35(6): 1583-1589, 2024 Jun.
Article en Zh | MEDLINE | ID: mdl-39235016
ABSTRACT
Reasonable soybean-maize intercropping mode can effectively promote soil phosphorus turnover and crop phosphorus absorption, and reduce phosphorus fertilizer input. To optimize phosphorus (P)-use efficiency in soybean/maize intercropping system, we intercropped two genotypes of soybean with maize to investigate the rhizosphere processes and mechanisms underlying soil biological P fractions and crop P uptake. The results showed that intercropping significantly depleted the rhizosphere soluble inorganic P (CaCl2-P) content in soybean genotype Yuechun 03-3, without impact on the P fractions in the rhizosphere of soybean Essex. Similarly, intercropping significantly increased biomass and P uptake of soybean genotype Yuechun 03-3 by 42.2% and 46.9%, respectively, compared to monoculture. However, it did not affect P uptake and biomass of soybean Essex and maize. Intercropping significantly increased both the total root length and the quantity of root exudates in Yuechun 03-3 by 19.7% and 138.1%, respectively. There was a significant positive correlation between P uptake and total root length in Yuechun 03-3, while a significant negative correlation between soluble inorganic P content and P uptake. In summary, intercropping of soybean and maize exhibited noticeable genotype differences in its impact on soil P fractions and crop P uptake. Intercropping has the potential to improve soybean P uptake and rhizosphere P turnover, mainly by increasing root length and root exudates of P-efficient genotype. The study would provide scientific evidence for optimizing the pairing of soybean and maize varieties in intercropping systems, thereby enhancing phosphorus utilization efficiency and reducing fertilizer inputs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fósforo / Suelo / Glycine max / Productos Agrícolas / Zea mays Idioma: Zh Revista: Ying Yong Sheng Tai Xue Bao Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: China
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fósforo / Suelo / Glycine max / Productos Agrícolas / Zea mays Idioma: Zh Revista: Ying Yong Sheng Tai Xue Bao Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: China