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首页> 外文期刊>Applied thermal engineering: Design, processes, equipment, economics >Feasibility of transference of inoculation-related technologies: A case study of evaluation of soybean rhizobial strains under the agro-climatic conditions of Brazil and Mozambique
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Feasibility of transference of inoculation-related technologies: A case study of evaluation of soybean rhizobial strains under the agro-climatic conditions of Brazil and Mozambique

机译：接种相关技术转移的可行性 - 以巴西和莫桑比克农业气候条件评价大豆根瘤菌菌株的案例研究

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The soybean-Bradyrhizobiwn symbiosis can be very effective in fixing nitrogen and supply nearly all plant's demand on this nutrient, obviating the need for N-fertilizers. Brazil has been investing in research and use of inoculants for soybean for decades and with the expansion of the crop in African countries, the feasibility of transference of biological nitrogen fixation (BNF) technologies between the continents should be investigated. We evaluated the performance of five strains (four Brazilian and one North American) in the 2013/2014 and 2014/2015 crop seasons in Brazil (four sites) and Mozambique (five sites). The experimental areas were located in relatively similar agro-climatic regions and had soybean nodulating rhizobial population ranging from 10 to 2 x 10(5) cells g(-1) soil. The treatments were: (1) NI, non-inoculated control with no N-fertilizer; (2) NI + N, non-inoculated control with 200 kg of N ha(-1); and inoculated with (3) Bradyrhizobium japonicurn SEMIA 5079; (4) B. diazoefficiens SEMIA 5080; (5) B. elkanii SEMIA 587; (6) B. elkanii SEMIA 5019; (7) B. diazoefficiens USDA 110; (8) SEMIA 5079 + 5080 (only tested in Brazil). The best inoculation treatments across locations and crop seasons in Brazil were SEMIA 5079 + 5080, SEMIA 5079 and USDA 110, with average grain yield gains of 4-5% in relation to the non-inoculated treatment. SEMIA 5079, SEMIA 5080, SEMIA 5019 and USDA 110 were the best strains in Mozambique, with average 20-29% grain yield gains over the non-inoculated treatment. Moreover, the four best performing strains in Mozambique resulted in similar or better yields than the non-inoculated + N treatment, confirming the BNF as an alternative to N-fertilizers. The results also confirm the feasibility to transfer soybean inoculation technologies between countries, speeding up the establishment of sustainable cropping systems.
机译：大豆 - Bradyrhizobiwn共生可以非常有效地固定氮气和供应几乎所有植物对这种营养素的需求，避免了对N-肥料的需求。巴西一直在研究和使用大豆的研究和使用数十年来，随着非洲国家的作物的扩大，应调查各大洲生物氮固定（BNF）技术的转移的可行性。我们评估了在2013/2014和2014/2015在巴西（四个地点）和莫桑比克（五个地点）的作物季节的五个菌株（四个巴西和北美）的表现。实验区位于相对相似的农业气候区域中，大豆环状根瘤菌的群体范围为10至2×10（5）个细胞G（-1）土壤。该治疗是：（1）Ni，非接种对照没有N-肥料; （2）Ni + N，非接种对照，200千克N HA（-1）;并接种（3）Bradyrhizobium japonicurn半5079; （4）B. Diazoeffiens半5080; （5）B. Elkanii半587; （6）B. Elkanii半5019; （7）B. Diazoeffiens USDA 110; （8）半5079 + 5080（仅在巴西测试）。巴西各地和作物季节的最佳接种处理是半5079 + 5080，半5079和USDA 110，平均谷物产量增益与非接种治疗有关4-5％。半5079，半5080，半5019和USDA 110是莫桑比克最佳菌株，平均谷物产量超过了非接种治疗。此外，莫桑比克的四种最佳表现菌株导致相似或更好的产量而不是非接种+ N处理，证实了BNF作为N-肥料的替代品。结果还证实可行性在各国之间转移大豆接种技术，加快建立可持续的种植系统。

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