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A Study of Growth and Yield of Four Peanut Varieties with Rhizobia Inoculation under Field Conditions

文献类型： 外文期刊

作者： Ding, Bin 1 ; Feng, Mengshi 1 ; Wang, Rui 1 ; Chang, Lei 1 ; Jiang, Ying 1 ; Xie, Jixian 1 ; Tian, Da 2 ;

作者机构： 1.Jiangsu Acad Agr Sci, Taizhou Inst Agr Sci, Taizhou 225300, Peoples R China

2.Anhui Agr Univ, Coll Resources & Environm, Anhui Prov Key Lab Farmland Ecol Conservat & Nutri, Hefei 230036, Peoples R China

关键词： Arachis hypogaea L.; rhizobia agent; root nodules; yield

期刊名称：AGRONOMY-BASEL （ 影响因子：3.3； 五年影响因子：3.7 ）

ISSN：

年卷期： 2024 年 14 卷 7 期

页码：

收录情况： SCI

摘要： The symbiotic nitrogen fixation between rhizobia and peanuts offers an advantage in reducing nitrogen fertilizer inputs, decreasing the incidence rate of peanuts, and enhancing soil fertility. Inoculating rhizobia agent is an effective pathway to improve both the quality and yield of peanuts, contributing to food security and promoting sustainable agricultural practices. This study conducted a one-year field experiment in a subtropical humid monsoon climate area in Southeast China to investigate the effects of rhizobia agents on the growth and crop yield of four peanut varieties (i.e., Taihua No.4, No.6, No.8, and No.10). Our research showed that inoculation with rhizobia agent can increase the plant height, lateral branch length, fresh root weight, and leaf area of the four peanut varieties. Meanwhile, inoculation with a rhizobia agent can significantly (p < 0.05) increase the similar to 50% number of root nodules. Especially for the early-maturing and drought-resistant variety, Taihua No.4 exhibited the highest number of nodules and peanut fruits per plant in the pod-setting stage after inoculation with rhizobia agent, i.e., 24.5 and 18.0, respectively. Under the conventional fertilization conditions (N-P2O5-K2O 15-15-15, 450 kg/hm(2)), Taihua No.4 and No.6 inoculated with rhizobia agent achieved higher yield increase rates of 11.0% and 11.6% compared to other peanut varieties. This study indicated that the Taihua No.4 and No.6 are the most suitable peanut varieties for rhizobia inoculation and promotion, with enormous potential for yield increase. Meanwhile, optimizing rhizobia inoculation techniques and evaluating soil health status, economic benefits of peanuts, and applicable regions should be explored in the future.

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