Soil nitrogen fertilisation as a maternal effect on <i>Buglossoides arvensis</i> seed germinability

Longas, M M; Chantre, Guillermo R.; Sabbatini, Mario Ricardo

doi:10.1111/wre.12229

Cited by 8 publications

(15 citation statements)

References 35 publications

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“…This study highlights the importance of considering soil tillage management as a driver to partially explain changes in RAP abundances. Studies are needed to reveal how the timing, frequency and type of tillage can affect RAP seed banks, or how tillage and environmental factors modulate dormancy processes, considering, for example, that high nitrogen levels can promote protracted emergence [ 42 ] and could enhance the depletion of seed banks. From this research it can be concluded that RAP can show contrasting behaviours without a clear shared pattern in response to tillage treatment.…”

Section: Discussionmentioning

confidence: 99%

Seedling emergence response of rare arable plants to soil tillage varies by species

2018

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Very little information is available on emergence of rare arable plants (RAP) in relation to soil disturbance and seed burial conditions in Europe. This information is essential to design conservation and soil management strategies to prevent the decline of these species in agroecosystems. The objective of this research was to investigate the effect of soil cultivation with burial time on the emergence and seed persistence of RAP. Seeds of 30 RAP species were collected from Spanish arable fields and subjected to two tillage treatments: (a) no soil disturbance, and (b) autumnal soil disturbance down to 10 cm depth every year. The treatments simulated no-till and tilled (disking), respectively. In plots under no-till, RAP seeds were sown at 1-cm depth. In the tilled plots, seeds were sown homogeneously mixed in the top 1–10 cm of soil. The trial was established every two consecutive seasons, and each trial was maintained for two years. Annual cumulative plant emergence was calculated each year; whereas the first trial was monitored for a third year to estimate seed longevity using a persistence index. The response in emergence of the 30 RAP to annual tillage varied among species. With burial time (number of years), higher emergence was observed for seeds sown in tilled soil. This was true across all species, and with strong season effects. The persistence index was correlated with seed weight, species with bigger seeds had low persistence indices while no pattern was observed for small seeded species. Most RAP species, particularly those with high persistence, showed induction of secondary dormancy processes, highlighting the importance of tillage to promote RAP emergence, and hence, seed bank replenishment. Therefore, as time passes the absence of soil tillage may represent a driver of RAP seed bank decline for those species with secondary dormancy processes. In conclusion, it is important to design soil management strategies, such as regular tillage to promote emergence, on a species basis to preserve RAP in Europe.

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Section: Discussionmentioning

confidence: 99%

Seedling emergence response of rare arable plants to soil tillage varies by species

2018

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“…Grassy weed is sensitive to nitrogen fertilizer. N fertilizer applications in spring will promote weed growth, which results in the need for more frequent herbicide applications or cultivation to control weeds [17]. As a general rule, Alfalfa can use biological nitrogen fixation to supply N nutrition and also improve soil fertility; the fertilizer nitrogen replacement value is about 143 kg N ha -1 [18].…”

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confidence: 99%

Effect of Nitrogen Fertilizer and Seeding Rate on Yield of Alfalfa and Weeds

Xie

2018

Pol. J. Environ. Stud.

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Weed infestation is a serious problem in an agroecosystem. It can decrease crop yield and degrade the environment. Under the background of global warming, weed management has become more complex and full of uncertainty. Though some studies show that CO 2 removal has been accomplished in a special urban city and park area, scientific observations show that the concentration of CO 2 is still increasing in the atmosphere [1][2][3][4][5][6][7]. Alfalfa (Medicago sativa L.) is one of the most important perennial forage legumes cultivated in the world because of its high nutritive quality and yield [8]. Weed invasion also is a serious problem for alfalfa cultivation, especially in seeding year and older stands [8][9]. Weed affects the stability of alfalfa stands because of competition with alfalfa for light, nutrients, and water resources, which result in decreased yields and quality [10][11]. Herbicide application is a widespread practice in many production systems for efficient weed control, but they have the potential to cause serious environmental pollution [12], particularly of ground and surface water [13][14]. In addition, some weeds become Pol. J. Environ. Stud. Vol. 27, No. 2 (2018), 647-653 AbstractApplying nitrogen (N) to increase alfalfa (Medicago sativa L.) yield is a general practice in China that has caused serious weed infestation problems. Our objective was to determine the effect of N fertilizer and seeding rate on yields of alfalfa and weeds. The effects of four N fertilizer gradients (0, 50, 100, and 150 kg N hm -2 ) and five alfalfa seeding rates (0, 5, 7.5, 10, and 15 kg hm -2 ) were examined on dry matter of alfalfa and weeds using a three-year in situ controlled trial. The results showed:• There were no significant differences among N fertilizer (N) for dry matter of alfalfa (DMA) during three years. Dry matter of grassy weeds (DMGW) and broadleaf weeds (DMBW) were significantly increased with the N fertilizer gradient in the seeding year.• DMA was significantly increased with the seeding rates gradient in both 2012 and 2013. DMGW and DMBW were significantly decreased with the seeding rates gradient in all three years.• Interactions between N fertilizer and seeding rates on DMA and DMBW in 2012 and DMGW and DMT in 2013 are significant (p<0.05). Although the study demonstrated that increasing seeding rate can suppress weed invasions, N fertilizer facilitated them.

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“…A widening in the thermal range permissive for germination and a reduction in thermal‐time requirements were also observed during seed after‐ripening of Buglossoides arvensis I.M. Johnston (= Lithospermum arvense (L.); Chantre, Batlla, Sabbatini, & Orioli, ; Longas, Chantre, & Sabbatini, ). Similar results were also obtained for other winter annual species requiring after‐ripening for physiological dormancy loss (Bair et al., ; Bauer et al., ; Foley, ).…”

Section: Discussionmentioning

confidence: 88%

Vicia villosa ssp. villosa Roth field emergence model in a semiarid agroecosystem

Renzi

Chantre

Cantamutto

2017

Grass and Forage Science

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Hairy vetch (Vicia villosa Roth) is a winter annual legume cultivated for pasture and hay with the capability for natural reseeding. Vicia villosa increases N concentrations in the soil, thus contributing to the sustainability of semiarid regions. However, under rotations of 1–2 years of pasture followed by 1 year of crop (1:1–2:1), hairy vetch could become a problematic volunteer weed in the winter cereal crop phase. This study aimed to develop a mechanistic model for hairy vetch seedling emergence in order to (i) estimate the natural reseeding of hairy vetch in the pasture phase of the field rotation, or (ii) develop control strategies considering hairy vetch as a volunteer weed in the winter cereal phase. The proposed model simulates the pattern of field emergence of hairy vetch after natural seed dispersal by integrating four submodels: (i) physical (PY) dormancy release dynamics, (ii) physiological dormancy (PD) release and germination thermal requirements, (iii) hydro‐time requirements for germination, and (iv) pre‐emergence growth respectively. The developed field emergence model was validated with independent field emergence data during 2013, 2014 and 2015. The model adequately predicted the timing and magnitude of field emergence flushes (RMSE < 10.1) despite the environmental variability among years. The additive effect of each submodel clearly improved the explanatory capacity of the field emergence patterns. The alleviation of PD synchronizes the timing for hairy vetch germination, while the PY determines the seedbank persistence. These outcomes suggest the potential applicability of the proposed modelling approach within management decision support systems.

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Soil nitrogen fertilisation as a maternal effect on Buglossoides arvensis seed germinability

Cited by 8 publications

References 35 publications

Seedling emergence response of rare arable plants to soil tillage varies by species

Seedling emergence response of rare arable plants to soil tillage varies by species

Effect of Nitrogen Fertilizer and Seeding Rate on Yield of Alfalfa and Weeds

Vicia villosa ssp. villosa Roth field emergence model in a semiarid agroecosystem

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