Biological Nitrogen Fixation Response to Soil Fertility Is Species-Dependent in Annual Legumes

Romanyà, Joan; Casals, Pere

doi:10.1007/s42729-019-00144-6

Cited by 33 publications

(30 citation statements)

References 45 publications

(56 reference statements)

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“…Herridge et al (2005) also found that lower availability of soil nitrate resulted in higher %Ndfa values in mungbean. The study conducted by Romanyà and Casals (2019) revealed that chickpea (Cicer arietinum) and bitter vetch (Vicia ervilia) fixed higher amounts of N (17-22 mg kg −1 ) in the low-fertility soils compared with high-fertility conditions. Beyan et al (2018) attributed increase in δ 15 N values and subsequent decrease in %Ndfa by soybean genotypes to effective symbiosis with rhizobial populations in two different soils.…”

Section: Discussionmentioning

confidence: 99%

Assessment of Nitrogen Fixation by Mungbean Genotypes in Different Soil Textures Using 15N Natural Abundance Method

Diatta

Thomason

Abaye

et al. 2020

J Soil Sci Plant Nutr

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Ensuring food and nutritional security in light of high climate variability and a rapidly growing population remains a challenge. Mungbean (Vigna radiata (L.) Wilczek) is a short duration, drought-tolerant, and ureide-exporting legume crop capable of symbiotic atmospheric nitrogen fixation. Estimates of biological N 2 fixation by mungbean in different soil textures have not been extensively studied. We conducted this study to evaluate plant growth and N 2 fixation of five mungbean genotypes (Berken, 8735, IC 8972-1, STB#122, 223) inoculated with Bradyrhizobium spp. and grown on loamy sand and silt loam soils under glasshouse conditions. Mungbean dry matter yield, δ 15 N values, shoot content, amounts of N-fixed, and soil N uptake were all higher on the silt loam soil compared to the loamy sand soil, demonstrating the effects of soil properties on plant growth and N 2 fixation potential. Among genotypes, IC 8972-1 produced the highest biomass (7.85 g plant −1), shoot N content (200 mg plant −1), and soil N uptake (155 mg plant −1) than other genotypes. The significant interaction between soil texture and genotypes for root dry matter and %Ndfa indicates the major role of legume root-nodule bacteria in symbiotic N 2 fixation. This study demonstrated that N 2 fixation in mungbean is affected by both genotypes and soil properties, illustrating the need to consider soil properties in order to maximize N contribution from mungbean to agricultural production systems.

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Section: Discussionmentioning

confidence: 99%

Assessment of Nitrogen Fixation by Mungbean Genotypes in Different Soil Textures Using 15N Natural Abundance Method

Diatta

Thomason

Abaye

et al. 2020

J Soil Sci Plant Nutr

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“…Even in intercropping, legumes can activate nitrogen fixation (Mahmud et al, 2020 ). This fixation further improves soil fertility and field ecological conditions, which is conducive to the mutualism of sugarcane and soybean (Romanyà and Casals, 2019 ). Our previous production data showed that the yield of the sugarcane cultivar, ZZ9, in an intercropping system with soybean was higher than that of ZZ1, and our research revealed that different sugarcane varieties had different rhizosphere bacterial community structures (Zhao et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Effect of Two Different Sugarcane Cultivars on Rhizosphere Bacterial Communities of Sugarcane and Soybean Upon Intercropping

et al. 2021

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Intercropping of soybean and sugarcane is an important strategy to promote sustainable development of the sugarcane industry. In fact, our understanding of the interaction between the rhizosphere and bacterial communities in the intercropping system is still evolving; particularly, the influence of different sugarcane varieties on rhizosphere bacterial communities in the intercropping process with soybean, still needs further research. Here, we evaluated the response of sugarcane varieties ZZ1 and ZZ9 to the root bacterial community during intercropping with soybean. We found that when ZZ9 was intercropped with soybean, the bacterial diversity increased significantly as compared to that when ZZ1 was used. ZZ9 played a major role in changing the bacterial environment of the root system by affecting the diversity of rhizosphere bacteria, forming a rhizosphere environment more conducive to the growth of sugarcane. In addition, our study found that ZZ1 and ZZ9 had differed significantly in their utilization of nutrients. For example, nutrients were affected by different functional genes in processes such as denitrification, P-uptake and transport, inorganic P-solubilization, and organic P-mineralization. These results are significant in terms of providing guidance to the sugarcane industry, particularly for the intercropping of sugarcane and soybean in Guangxi, China.

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“…Organic farming includes a series of practices that enhance nutrient and energy use and minimize environmental pollution, such as crop rotations and crop diversity, different combinations of livestock and plants, application of organic amendments (Nandwani and Nwosisi 2016), green manure (de Jesus Souza et al 2019), and symbiotic N fixation with legumes (Romanyà and Casals 2019). These practices are assumed to result in higher levels of soil organic C and N in the long run, even if their introduction could lead to a low N availability for crop uptake as soil biological activity might not be able to provide sufficient nutrients in the early growing season (Clark et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Changes in Labile Fractions of Soil Organic Matter During the Conversion to Organic Farming

Abdelrahman

Cocozza

Olk

et al. 2020

J Soil Sci Plant Nutr

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Organic farming can overcome the environmental consequences of intensive conventional farming. The objective of the work was to investigate the changes in labile soil organic matter (SOM) fractions during the conversion from conventional to organic farming in two Italian sites, namely Foggia (FG) and Metaponto (MT), which differed mainly in initial soil organic carbon (SOC) content. Fields were cultivated with lentil and wheat in rotation and treated with either compost or nitrogen or phosphorus (N/P) fertilizers in three field replicates. The SOM was sequentially fractionated into light fraction (LF), particulate organic matter (POM), and mobile humic acid (MHA) fraction. Isolated fractions were quantified and analyzed for C and N contents. Although total SOC responded to the fertilization treatments, the LF and POM fractions were yet more responsive. The MHA represented on average of 15% of SOC at both sites; however, the LF represented only 5-6% of the total SOC but was the most responsive to changes in soil management. Compost application contributed significantly greater quantities of LF, POM, and MHA than did the N/P fertilizers application. The initial SOC content can play an important role in determining the impacts of introducing organic farming practices on SOM fractions. Although both sites had an initial low SOC content, the MT site, with a lower SOC content, showed a substantial fractional C increment as compared to the FG site.

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Biological Nitrogen Fixation Response to Soil Fertility Is Species-Dependent in Annual Legumes

Cited by 33 publications

References 45 publications

Assessment of Nitrogen Fixation by Mungbean Genotypes in Different Soil Textures Using 15N Natural Abundance Method

Assessment of Nitrogen Fixation by Mungbean Genotypes in Different Soil Textures Using 15N Natural Abundance Method

Effect of Two Different Sugarcane Cultivars on Rhizosphere Bacterial Communities of Sugarcane and Soybean Upon Intercropping

Changes in Labile Fractions of Soil Organic Matter During the Conversion to Organic Farming

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