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Combination Effects of Sulfur Fertilizer and Rhizobium Inoculant on Photosynthesis Dynamics and Yield Components of Soybean

文献类型： 外文期刊

作者： Bi, Yingdong 1 ; Fan, Chao 1 ; Liang, Wenwei 1 ; Liao, Yi 1 ; Han, Dezhi 2 ; Li, Wei 1 ; Chen, Xiangjin 2 ; Liu, Miao 1 ; Liu, Jianxin 1 ; Di, Shufeng 1 ; Yang, Guang 1 ; Wang, Yufeng 1 ; Liu, Yuehui 3 ; Lai, Yongcai 1 ; Lu, Wencheng 2 ; Li, Guotai 1 ;

作者机构： 1.Heilongjiang Acad Agr Sci, Inst Crop Cultivat & Tillage, Harbin 150028, Peoples R China

2.Heilongjiang Acad Agr Sci, Heihe Branch, Heihe 164300, Peoples R China

3.Agr Technol Extens Ctr Nenjiang, Nenjiang 161400, Peoples R China

关键词： soybean; sulfur fertilization; rhizobium inoculation; yield components; yield

期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）

ISSN：

年卷期： 2024 年 14 卷 4 期

页码：

收录情况： SCI

摘要： Sulfur (S) fertilization and rhizobium inoculation are important agronomic practices for improving soybean growth and yield. However, their combined effects on yield components and the resultant impacts on yield need further investigation. Our study aimed to verify the combined effects of S fertilizer and rhizobium inoculant on the yield components and seed yield of soybeans, as well as photosynthesis dynamics during the V5-R6 growth stages. A randomized block design incorporating two factors was employed for field experiments on soybean, involving the application of five rates of sulfur (0, 5.0, 9.8, 14.8, and 19.6 kg S ha-1) with rhizobium inoculation or without. A reduction of 50% in mineral fertilizer according to farmer practice (FP) was applied alongside different rates of sulfur for field experiments on soybeans. The findings indicated that the application of sulfur fertilization significantly enhanced soybean yield by increasing the number of grains per plant (NG) and the number of pods per plant (NP). Maximum grain yield was reached under treatment with an S rate of 19.6 kg S ha-1, which increased NG by 39% more than an S rate of 0 kg S ha-1. Correlation analysis indicated that higher photosynthesis was closely associated with increased yield components. This study demonstrated that applying S fertilizers could improve soybean production by combining the appropriate sulfur concentration and rhizobia inoculation.

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