Eﬀect of nutrient cycle inﬂuenced by inter-row cover crops on the nutritional status of rustic grapevine

Campos, Luiz Fernandes Cardoso; Campos, Camila Meira de Abreu; Collier, Leonardo Santos; Seleguini, Alexsander

doi:10.15446/rfnam.v72n1.71277

Cited by 3 publications

(2 citation statements)

References 24 publications

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“…In the absence of soil correction, with the lime application, acidification causes an increase in species regarded as agricultural weeds, and a reduction in productivity (Goulding, 2016). Weed species identified in the present study are commonly found in soils with low fertility and high acidity (Gazziero et al, 2006;Brighenti et al, 2010;Moreira and Bragança 2011;and Costa el al., 2011).…”

Section: Resultsmentioning

confidence: 53%

Influence of burning and weed control on the soil fertility and vegetation cover of Brazilian Amazon pastures

Lisbôa

2021

Rev. Fac. Nac. Agron. Medellín

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In pastures it is common to use fire to control weeds, justified by the increase in soil fertility that ashes can generate. However, the benefits of this process is short-lived, and also increase the soil exposure. The permanence of weeds can contribute to the vegetation cover in areas of deficient pastures. This study aimed to evaluate the effect of prescribed burning and mowing on vegetation cover of Urochloa brizantha (U. brizantha) pastures and soil surface fertility in pastures located in the Brazilian Amazon. The study was conducted in Itupiranga, Pará state, Brazilian Amazon. Five pastures of U. brizantha cv. Marandu and a forest area were evaluated. The soil was a Ferralsol. Vegetation cover was estimated using a quadrat. Four composite soil samples were taken in each area, collected from 0–0.05 m depth. The percentage of vegetal cover of U. brizantha, weeds and bare soil was measured and fertility in soil samples (pH, Al3+, Ca2+, Mg2+, K+, Na+, P, and H+Al) were determined. Three groups were identified in the evaluated pasture plots. Group I had the highest average percentage of bare soil (33.5%) and was associated with H+Al and P values. Group II had the highest average of U. brizantha cover (90%) and was associated with Ca2++Mg2+ and K+. Group III had the highest average of weed cover (53.4%) and was associated with Al3+. The higher percentage of U. brizantha in Group II was favored by the burning later. This group presented better levels of K+, Mg2+ and sum of bases. The management adopting the least use of fire on the pastures, with longer time for the regeneration of forage, combined with the mechanical control of weeds, can be the best alternative for maintaining the soil cover and bringing benefits for quality surface layer of the soil.

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Section: Resultsmentioning

confidence: 53%

Influence of burning and weed control on the soil fertility and vegetation cover of Brazilian Amazon pastures

Lisbôa

2021

Rev. Fac. Nac. Agron. Medellín

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“…Em complemento, no trabalho de Pereira (2015), o feijão-de-porco foi a cultura que apresentou maior incremento de fitomassa seca e melhores resultados quanto ao potencial de ciclagem de nutrientes do material vegetal da parte aérea da planta com melhores teores de cálcio. Campos et al (2019) também verificaram que feijão-de-porco se mostrou eficiente em reciclar nutrientes, esses resultados reforçam seu grande potencial como planta de cobertura.…”

Section: Resultsunclassified

Plantas de cobertura do solo para cultivo de alface em sucessão, sob sistema de plantio direto

et al. 2021

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Largamente utilizado em sistemas de produção de espécies produtoras de grãos em larga escala, o plantio direto tem sido adotado para a produção de hortaliças. No entanto, a elevada quantidade de possibilidades de combinações entre plantas de cobertura e sucessoras gera a demanda constante por estudos relacionados a essa temática. O objetivo do trabalho foi avaliar a utilização de diferentes espécies de gramíneas e leguminosas como possíveis culturas antecessoras ao plantio direto para a cultura da alface. Para tanto, foram avaliados seis tratamentos com plantas de cobertura: crotalária (Crotalaria juncea), feijão de guandu (Cajanus cajan), feijão-de-porco (Canavalia ensiformis), milheto (Pennisetum glaucum) e sorgo (Sorghum bicolor), além de um tratamento controle, com uso de vegetação espontânea. Verificou-se efeito positivo do cultivo da alface em sucessão ao sorgo, ao milheto e ao feijão-de-porco, enquanto que o seu cultivo em sucessão à crotalária e ao feijão guandu exibiu decréscimos da massa fresca, do número de folhas, do diâmetro da cabeça e da produtividade. Dessa forma, pode-se concluir que a formação de biomassa abundante sobre o solo, proporcionada pelas espécies de gramíneas P. glaucum e S. bicolor, melhora as condições de cultivo da alface em sistema de plantio direto, desde que realizado o correto manejo nutricional e hídrico da cultura. Em complemento, dentre as espécies leguminosas C. ensiformis proporciona o melhor desenvolvimento da cultura da alface, enquanto o cultivo de C. juncea deve ser evitado, a fim de não ocorrer perdas relativas no desenvolvimento da cultura de interesse.

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Screening Cover Crops for Utilization in Irrigated Vineyards: A Greenhouse Study on Species’ Nitrogen Uptake and Carbon Sequestration Potential

Sharifi,

Salimi,

Rosa

et al. 2024

Plants

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This study examines the potential of 23 plant species, comprising 10 legumes, 9 grasses, and 4 forbs, as cover crops to enhance carbon (C) sequestration and soil nitrogen (N) in vineyards. After a 120-day evaluation period, cover crop biomass was incorporated into the soil, and grapevine seedlings were planted in its place. Among the established cover crops, the C input potential ranged from 0.267 to 1.69 Mg ha−1, and the N input potential ranged from 12.3 to 114 kg ha−1. Legume species exhibited up to threefold greater shoot dry weight (SDW) compared to grass species. Ladino white clover, Dutch white clover, and Clover blend were superior in SDW, total dry weight (TDW), total C content, and total N content. Legumes exhibited slightly higher root dry weight (RDW) than grasses, with the exception of Fall rye leading at 15 g pot−1, followed by Ladino white clover and Dutch white clover at an average of 12 g pot−1. Legumes, particularly clover blend and Alsike clover, displayed high shoot N concentration at an average of 2.95%. Root N concentration in Legumes (Fabaceae) were significantly higher at 1.82% compared to other plant families at 0.89%, while their root C/N ratio was lower at 18.3, contrasting with others at 27.7, resulting in a faster turnover. Biomass production exhibited a negative relationship (R2 = 0.51) with soil residual NO3−. Fall rye, Winfred brassica, and buckwheat had the highest N utilization efficiency (NUtE) values (ava. 121 g g−1). Alsike clover, Ladino white clover, and clover blend showed the highest N uptake efficiency (NUpE) values (ava. 75%). The Readily Available N (RAN) Reliance Index (RANRI) is introduced as a novel indicator for quantifying the extent to which a plant relies on RAN for its total N requirement. The RANRI value represents the percentage of the plant’s total N sourced from RAN, ranging from 11% for legumes to 86% for grasses. This implies a substantial influx of nitrogen through a pathway independent of RAN in legumes. Grape shoot N concentration positively correlated with soil NO3− (R2 = 0.31) and cover crop C/N ratio (R2 = 0.17) but negatively correlated with cover crop TDW (R2 = 0.31). This study highlights legume plants as more effective in C and N assimilation during establishment but cautions about potential soil mineral N depletion before reaching their full biological N fixation capacity.

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Eﬀect of nutrient cycle inﬂuenced by inter-row cover crops on the nutritional status of rustic grapevine

Cited by 3 publications

References 24 publications

Influence of burning and weed control on the soil fertility and vegetation cover of Brazilian Amazon pastures

Influence of burning and weed control on the soil fertility and vegetation cover of Brazilian Amazon pastures

Plantas de cobertura do solo para cultivo de alface em sucessão, sob sistema de plantio direto

Screening Cover Crops for Utilization in Irrigated Vineyards: A Greenhouse Study on Species’ Nitrogen Uptake and Carbon Sequestration Potential

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