Do tillage systems influence nitrogen fixation in legumes? A review

Torabian, Shahram; Farhangi‐Abriz, Salar; Denton, Matthew D.

doi:10.1016/j.still.2018.09.006

Cited by 79 publications

(57 citation statements)

References 115 publications

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“…Biological fixation of atmospheric N 2 (BNF) is very sensitive to deleterious environmental conditions. Consequently, many imposed stresses, such as drought, oxygen permeability, low or high pH, nutritional limitations or imbalances, can reduce BNF and nodule formation (TORABIAN et al, 2019). In the current study, inhibition of nodule formation in treatments with high organic compost levels probably occurred because the plants found nutrients readily available, making symbiosis between plants and bacteria unnecessary.…”

Section: Discussionmentioning

confidence: 65%

“…Dias et al (2017) observed that Enterolobium contortisiliquum seedlings did not nodulate when grown on substrates containing only organic compost, a fact attributed by the authors to the inhibitory effects of organic matter on nodulation, since conditions of higher fertility would increase N availability, reducing nodulation. High N levels in the soil can reduce the amount of N 2 fixed by legumes, since it costs less energy for such plants to absorb N from the soil than to fix it biologically from the atmosphere (TORABIAN et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

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Organic substrates and formononetin for Leucaena leucocephala saplings

Pereira

Veloso

Nóbrega

et al. 2019

AGRO@MBIENTE ON-LINE

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To obtain quality saplings it is necessary to consider the requirements the plants have for a balanced nutriente intake. These can be made available from organic waste which, in many cases, is simple to acquire and can be recycled easily. Consequently, the current study evaluated the potential of organic substrates and formononetin for the production of Leucaena leucocephala seedlings. Experiments were carried out in a greenhouse, using a fully randomized experimental design, in a factorial arrangement (5 x 2), with five soil proportions: organic compound (100: 0, 80:20, 60:40, 40:60, 20 : 80) and two doses (0 and 1.0 mg per seed) of the isoflavonoid formononetine (7-hydroxy-4’-methoxy-isoflavone, Myconate®). After 60 days of sowing, shoot height, stem diameter, shoot height ratio, shoot diameter, number of nodules, aerial dry mass (ADM), root dry mass (RDM), total dry matter and Dickson Quality Index (DQI) of the Leucaena leucocephala seedlings were evaluated. Formononetin positively influenced dry root and total dry mass production, and the Dickson Quality Index of Leucaena leucocephala seedlings. A substrate with 46% soil and 54% organic compound gave the highest seedling DQI, this thereforee being the recommended proportions for this specieds during the initial growth phase.

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Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Organic substrates and formononetin for Leucaena leucocephala saplings

Pereira

Veloso

Nóbrega

et al. 2019

AGRO@MBIENTE ON-LINE

View full text Add to dashboard Cite

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“…And it was identified that conservation tillage typically enhances nodulation and nitrogen fixation, through increased soil moisture retention and soil temperature, and increased soil microbial biomass. However, conservation tillage can lead to a reduction in soil pH and increased soil compaction, which can reduce nodulation (Torabian et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

Determination of the Rate of Rhizobial Biofertilizers for Faba Bean (V. faba), in the Major Growing Areas of Arsi Zone

2019

JBAH

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Different rates and types of isolates of rhizobia and their benefit have been presumed beneficial in regard to soil resource amendment and increase yield and yield parameters. The objective of this study was to assess the effect of different rates of bio-fertilizer. The treatments were consisted of six different rates (600, 750, 900, 1050, 1150 and 1250gm ha-1) of rhizobia (strain FB-1017) and recommended rates of balanced fertilizer laid out in randomized complete block design with three replications. The field experiment was conducted at four potential districts of Arsi zone, during the main cropping seasons of 2017/18 and 2018/19. Application of different rates of biofertilizer had effects an evident from significant difference (p<0.05) in agronomic and yield traits. In the first year(2017/18) the effects of treatments were not apparently significant (p<0.05) at Kulumsa but, at Limu Dima-1 rate 1025 gm/ha gave significantly 46%(1372kg/ha more better than recommended fertilizer rate ,other rates such as 750 gm ha -1 ( at Kulumsa),900 gm ha -1 (at Bekoji Negesso) and 1150 gm ha -1 (at Gora Silingo ) performed poor and significant effect of treatment RCR was observed rather more pronounced which recorded 31.2%(798 kg/ha) more better than the 900 gm /ha rate(at Bekoji Negesso),24.8%(941kg ha -1 ) than 725gm/ha (at Kulumsa) and 36%(1622kg ha -1 ) than rate 1150 gm/ha (at Gora Silingo).With respect to harvest index and plant height all locations except Gora Silingo and Bekoji Negesso, were not significantly affected((p<0.05) by treatments. The year 2017/18 had better productivity in both grain yield and biomass than year 2018/19 and patterns of significant enhancement in yield by increased rate have been observed which generally consistent trend was observed by rate 1025 gm ha -1 but more and more locations need to be assessed in order that the fluctuating environment and unknown rhizosphere would bring about important information.

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“…Also, legumes' biological fixation of atmospheric N 2 can be affected by "starter-N" and tillage; Torabian et al [51][52][53] showed that conservation tillage typically enhances nodulation and nitrogen fixation, through increased soil moisture retention and soil temperature, and increased soil microbial biomass. According Krishna [54], there are several legumes as pea, faba bean, soy bean, and forage legumes that need no fertilizer-N supply, perhaps except a starter-N in some locations to induce rapid rooting at seedling stage.…”

Section: Agronomic Managementsmentioning

confidence: 99%

A Systematic Review of Field Trials to Synthesize Existing Knowledge and Agronomic Practices on Protein Crops in Europe

et al. 2019

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Protein crops can represent a sustainable answer to growing demand for high quality, protein-rich food in Europe. To better understand the state of scientific studies on protein crops, a systematic review of field trials results to collect existing knowledge and agronomic practices on protein crops in European countries was conducted using published data from the literature . A total of 42 publications was identified. The following seven protein crops were considered: quinoa, amaranth, pea, faba bean, lupin, chickpea, and lentil. Observations within the studies were related to one or more of eight wide categories of agronomic managements: deficit irrigation (n = 130), salinity (n = 6), tillage (n = 211), fertilizers (n = 146), sowing density (n = 32), sowing date (n = 92), weed control (n = 71), and multiple interventions (n = 129). In 86% of the studies, measures of variability for yield mean values are missing. Through a multiple correspondence analysis (MCA) based on protein crops, European environments, and agronomic management factors, we provide a state of art of studies carried out in Europe on protein crops over the 32-year period; this study will allow us to understand the aspects that can still be developed in the topic. Most investigated studies refer to southern Europe and showed some trends: (i) faba bean, pea, and lupin provide highest seed yields; (ii) sowing date, sowing density, fertilization, and deficit irrigation are the agronomic practices that most influence crop yield; (iii) studies conducted in Central Europe show highest seed yields. The output from this study can be used to guide policies for sustainable crop management.

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Do tillage systems influence nitrogen fixation in legumes? A review

Cited by 79 publications

References 115 publications

Organic substrates and formononetin for Leucaena leucocephala saplings

Organic substrates and formononetin for Leucaena leucocephala saplings

Determination of the Rate of Rhizobial Biofertilizers for Faba Bean (V. faba), in the Major Growing Areas of Arsi Zone

A Systematic Review of Field Trials to Synthesize Existing Knowledge and Agronomic Practices on Protein Crops in Europe

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