Nitrogen Supply for Cover Crops and Effects on Peanut Grown in Succession under a No‐Till System

Crusciol, Carlos Alexandre Costa; Soratto, Rogério Peres

doi:10.2134/agronj2008.0054

Cited by 40 publications

(34 citation statements)

References 14 publications

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“…Under the same soil and climatic conditions of the Cerrado, DB yield of cover plants on irrigated plots in this experiment was higher than under rainfed conditions (Fabian, 2009;Crusciol and Soratto, 2009;Carvalho et al, 2011;Torres et al, 2015). This fact occurred because there was no lack of water during the initial stage of crop development, Beyond the coverage of the soil provided by the plants used, that may have provided greater retention of moisture and amount of nutrients available in the soil solution, which were used by plants in its development.…”

Section: Dry Biomass Production Of Cover Cropsmentioning

confidence: 60%

“…Some studies show that signal grass, sunn hemp and pearl millet are the best adapted cover crops to the edaphoclimatic conditions in the Cerrado because they produce high amount of biomass, both in the dry and rainy season (Crusciol and Soratto, 2009;Chioderoli et al, 2012;Torres et al, 2015). Other studies show that these crops provide the best nutrient cycling in the Cerrado when cultivated before or after no-till corn, soybeans, beans, rice and other crops, and that the highest amounts of nutrients are released within 42 days after terminating these cover crops (Torres et al, 2008;Fabian, 2009;Assis et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Application of different cover crops and mineral fertilizer doses for no-till cultivation of broccoli, cauliflower and cabbage

Torres¹,

Gomes²,

Barreto³

et al. 2017

Aust J Crop Sci

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No-till practices have not been widely adopted by vegetable producers due to the necessity of seedbed preparation to incorporate organic fertilizers and plant residues of the preceding crops. This study evaluated biomass yield and residue decomposition of different cover crops, and their influence on agronomic performance of Brassica crops cultivated under no-till system. The experiment was laid out in randomized complete blocks with 4 x 3 factorial treatment combinations of four cover crops: Sunn hemp (SH), Signal grass (SG), Pearl millet (PM), and SH + PM mixture, and three doses of mineral fertilizer-0, 50, and 100% of the recommended fertilizer doses for broccoli. The same design and treatments were used for cauliflower and then for cabbage, separately.. The experiment was carried out with 4 repetitions on parcels of 20 m 2 . No beds were raised, for the planting of seedlings was done in pits. The following agronomic traits were evaluated: Dry biomass (DB) and decomposition of cover crop residues (DR), and the number of leaves (NL), height (H), fresh head weight (FHW) and dry head weight (DHW), and yield (Y) of Brassica crops. The highest DB occurred in treatments with SH (Give value). SG presented the highest DR constant and the shortest half-life of residues in this study.; Broccoli presented better agronomic performance when cultivated on residues containing SH.; Fertilizer doses influenced broccoli and cabbage productivity, which were the highest for the treatment with 100% dose of mineral fertilizer.

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Section: Dry Biomass Production Of Cover Cropsmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Application of different cover crops and mineral fertilizer doses for no-till cultivation of broccoli, cauliflower and cabbage

Torres¹,

Gomes²,

Barreto³

et al. 2017

Aust J Crop Sci

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“…Entre as espécies utilizadas como plantas de cobertura e para adubação verde, duas se destacam: a crotalária (Crotalaria juncea L.), pela boa cobertura do solo proporcionado pelo rápido crescimento, pela associação simbiótica com bactérias fixadoras de N 2 (PERIN; GUERRA; TEIXEIRA, 2003) e supressão de nematóides parasitas (INOMOTO et al, 2008), sendo que essa última característica tem acarretado em grande expansão do cultivo dessa espécie nas áreas de produção de grãos na região do cerrado brasileiro; e o milheto (Pennisetum glaucum (L.) R. Brown), que é caracterizado pela produção de palhada em grande quantidade e com características de maior persistência sobre o solo (BOER et al, 2008;SILVA et al, 2010), pela alta capacidade de extração de nutrientes do solo, com amplas vantagens de reciclagem, principalmente N e K, reduzindo os riscos de lixiviação (ROSOLEM;PACE;CRUSCIOL, 2004;CRUSCIOL;SORATTO, 2007SORATTO, , 2009LEITE et al, 2010).…”

Section: Introductionunclassified

Persistência e liberação de elementos da fitomassa do consórcio crotalária com milheto sob fragmentação

Costa¹,

Crusciol²,

Soratto³

et al. 2014

Rev. Ciênc. Agron.

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RESUMO -Objetivou-se, com esse trabalho, avaliar a taxa de decomposição e a velocidade de liberação de macronutrientes e Si da fitomassa do consórcio crotalária mais milheto, em função do tempo após manejo, sem e com fragmentação. O experimento foi conduzido em condições de campo, em Botucatu-SP. O delineamento experimental foi de blocos casualizados, com quatro repetições, em esquema fatorial constituído por dois manejos da fitomassa da parte aérea (sem e com fragmentação mecânica) e seis épocas de coleta [0; 18; 32; 46; 74 e 91 dias após manejo (DAM)]. Foram determinadas a massa de matéria seca, teor de macronutrientes e Si e quantidade dos nutrientes remanescentes. Os dados foram submetidos à análise de variância, as médias dos tratamentos do fator manejo comparadas pelo teste de t (LSD) a 5% e do fator épocas de coletas ajustados a equações matemáticas. A fragmentação da fitomassa aumenta a taxa de decomposição e a liberação de N, P, Ca e S. O K é rapidamente disponibilizado, restando 91 DAM, em média, 1,5% da quantidade total acumulada. Aos 91 DAM pelo menos 80% de todos os macronutrientes já haviam sido liberados ao solo. A máxima liberação diária dos macronutrientes ocorre entre 0 a 18 DAM. A taxa de liberação de Si é constante e ocorre aumento do teor do elemento na fitomassa com o tempo devido à acentuada liberação de C. O Si é o elemento liberado mais lentamente ao solo, restando ainda 91 DAM, em média, 85% da quantidade total acumulada na fitomassa. Palavras-chave:Crotalaria juncea. Milheto. Palha-utilização na agricultura. Cultivo consorciado.ABSTRACT -The objective of this work was to evaluate the rate of decomposition and rate of release of macronutrients and Si in the biomass from intercropped sunn hemp and millet, as a function of time after management, both with and without fragmentation. The experiment was conducted under field conditions in Botucatu, São Paulo. The experimental design was of randomized blocks with four replications, in a factorial design consisting of two managements of shoot phytomass (with and without mechanical fragmentation) at six harvesting times [0, 18, 32, 46, 74 and 91 days after management (DAM)]. The dry-matter weight, macronutrient and Si content, and quantity of remaining nutrients were determined. The data were subjected to variance analysis, the averages of the factor management treatments were compared by t-test (LSD) at 5%, and those of the factor sampling-times, adjusted to the mathematical equations. Fragmentation of the phytomass increases the rate of decomposition and release of N, P, Ca and S. K is available quickly, with on average 1.5% of the total amount accumulated at 91 DAM. By 91 DAM at least 80% of all the macronutrients had been released into the soil. The maximum daily release of macronutrients occurs between 0 to18 DAM. The release rate of Si is constant, and there is an increase of the content of this element in the phytomass over time, due to the marked release of C. The element Si is that released most slowly into the soil, with there still ...

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“…The samples were taken using a hollow metallic square of 1.0 m x 1.0 m (1.0 m²) thrown at random in each plot. All plant material was collected using the methodology proposed by Crusciol and Soratto (2009) and Nascente, Pereira and Medeiros (2004). The plant samples were placed in paper bags and dried in an oven with forced ventilation at 65°C until constant weight of plant dry matter.…”

Section: Dry Matter Cover Crop Degradationmentioning

confidence: 99%

Cover crops affecting levels of ammonium and nitrate in the soil and upland rice development

Nascente

Crusciol

2013

Sem. Ci. Agr.

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The use of cover crops in no-tillage systems (NTS) increases the levels of organic matter and could increase the nitrogen content of the soil, contributing to reduce fertilizers costs. The knowledge of these processes is fundamental for deciding whether cover crops can be effectively incorporated into the agricultural production system. The objective of this study was to evaluate the effect of cover crop species on the levels of nitrate and ammonium in the soil in early upland rice development, as well upland rice yield. A field experiment was performed and treatments consisted of growing rice on five cover crops (Panicum maximum, Brachiaria ruziziensis, Brachiaria brizantha, millet and fallow) in an NTS and two control treatments (Brachiaria brizantha and fallow) under a conventional tillage system, CTS, (one plowing and two disking). The experimental design was a complete randomized block with three replications. The soil samples were collected during a period of six weeks (0, 7, 14, 21, 28 and 35 days in relation to upland rice sowing). The cover crops Brachiaria brizantha, Panicum maximum and Brachiaria ruziziensis in the NTS and B. brizantha fallow incorporated into the CTS favored higher levels of nitrate in the soil. In contrast, B. brizantha and fallow in the CTS and millet and P. maximum in the NTS favored the buildup of high levels of ammonium in the soil. The treatments under the plowed cover crops millet and fallow allowed for a higher upland rice yield. The tillage system and nature of the cover crops could be used to achieve the desired levels and forms of nitrogen in soil. Key words: Brachiaria brizantha, Brachiaria ruziziensis, Panicum maximum, millet, fallow, soil management ResumoO uso de plantas de cobertura no sistema plantio direto (SPD) aumenta os níveis de matéria orgânica e pode ajudar a aumentar os teores de nitrogênio no solo contribuindo para reduzir os custos de fertilizantes. O conhecimento desse processo é fundamental para que as plantas de cobertura possam ser efetivamente incorporadas aos sistemas de produção agrícola. O objetivo deste estudo foi avaliar o efeito de espécies de plantas de cobertura nos níveis de nitrato e amônio no solo durante o desenvolvimento inicial do arroz de terras altas, bem como a produtividade do arroz. Um experimento de campo foi realizado e os tratamentos consistiram de cultivo de arroz sobre cinco plantas de cobertura (Panicum maximum, Brachiaria ruziziensis, Brachiaria brizantha, milheto e pousio) no SPD e mais dois tratamentos controle (Brachiaria brizantha e pousio) no sistema de plantio convencional, PC (uma aração e duas gradagens). O delineamento experimental foi em blocos completos casualizados com três repetições. As amostras de solo foram coletadas por seis semanas (0, 7, 14, 21, 28 e 35 dias em relação à semeadura do

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Nitrogen Supply for Cover Crops and Effects on Peanut Grown in Succession under a No‐Till System

Cited by 40 publications

References 14 publications

Application of different cover crops and mineral fertilizer doses for no-till cultivation of broccoli, cauliflower and cabbage

Application of different cover crops and mineral fertilizer doses for no-till cultivation of broccoli, cauliflower and cabbage

Persistência e liberação de elementos da fitomassa do consórcio crotalária com milheto sob fragmentação

Cover crops affecting levels of ammonium and nitrate in the soil and upland rice development

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