Mineralização e nitrificação do nitrogênio proveniente da cama de aves aplicada ao solo

Rogeri, Douglas Antônio; Ernani, Paulo Roberto; Lourenço, Késia Silva; Cassol, Paulo Cézar; Gatiboni, Luciano Colpo

doi:10.1590/1807-1929/agriambi.v19n6p534-540

Cited by 21 publications

(13 citation statements)

References 23 publications

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“…The linear increase in K levels only in the treatment with the split application of PL rates may be another indication that there were fewer nutrients lost with this fertilization method in the rainy year (Figure 4f). While the K contents increased by 47.0% with the PL application at side-dressing, the K contents from the treatment with pre-sowing PL did not increase with the incorporation of up to 926 kg ha -1 of K 2 O, which suggests that, in addition to N, there were substantial losses of K. N losses due to NO 3 --N leaching can occur because of the high rates of NH 4 + -N accumulation (Pengthamkeerati et al, 2006) and nitrification (Rogeri et al, 2015) with slight PL incorporation. PL can favor the release of Ca, Mg, K, and Na to deeper soil layers, particularly via the contribution of basic cations by the organic fertilizer itself and the effect of the combination of organic and inorganic anions, especially NO 3 --N (Gebrim et al, 2008).…”

Section: Resultsmentioning

confidence: 89%

“…The total concentrations of N, P 2 O 5 and K 2 O with the maximum PL rate were equivalent to approximately 425, 1,223, and 926 kg ha -1 year -1 , respectively, far above the inorganic fertilizer recommendations for corn silage in low fertility soil (Núcleo Estadual Paraná-Sociedade Brasileira de Ciência do Solo [Nepar-SBCS], 2017). Moreover, ammonium (NH 4 + -N) accumulation occurred on the soil surface due to lower aeration when increasing PL rates were lightly incorporated (Pengthamkeerati, Motavalli, Kremer, & Anderson, 2006), and higher NH 4 + -N nitrification was observed with PL incorporation into the soil in relation to its application to the surface due to the closer contact of the organic fertilizer with soil nitrifying microorganisms (Rogeri, Ernani, Lourenço, Cassol, & Gatiboni, 2015).…”

Section: Resultsmentioning

confidence: 99%

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Methods and rates of poultry litter fertilization for corn silage in organic system

2019

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The creation of proper soil fertility is fundamental to the agroecological transition phase and guarantees the sustainability of organic agribusiness. In a randomized complete block design with a 3 x 2 factorial scheme with 1 additional treatment (control, without organic fertilizer), we tested three poultry litter rates (7, 14, and 21 Mg ha-1) at sowing or splitting between sowing (30%) and side-dressing (70%) for two summer corn whole-plant silage crops and for the soil chemical attributes. The splitting of the poultry litter rate during the rainy season preserves the soil K content, prevents the accumulation of soil P and increases the efficiency of the increasing yields of the organic whole-plant corn silage crop. The reapplication of pre-sowing poultry litter can lead to an accumulation of P and Ca in the soil but favors fresh matter and cob dry matter yields in the dry season. The splitting of the poultry litter rate for whole-plant corn silage can guarantee technical and environmental sustainability in rainy years, but on the other hand, the reapplication of this organic fertilizer only at pre-sowing can increase the fresh matter yield and protein quality of organic whole-plant corn silage cultivated in an Inceptisol in the dry season.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Methods and rates of poultry litter fertilization for corn silage in organic system

2019

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“…A aplicação de cama de aviário sobre a superfície do solo favorece a manutenção do N na forma de NH4 + em relação à incorporação do adubo orgânico no solo, em razão da menor taxa de nitrificação decorrente do menor contato com microrganismos (ROGERI et al, 2015). Com a aplicação de cama de aviário sobre a superfície do solo, em média cerca de 84% do N foi volatilizado na forma de amônia (NH3) durante os primeiros cinco a seis dias em dois anos de estudo, diminuindo em média 67% quando a cama de aviário foi levemente incorporada na superfície do solo com gradagem leve (POTE; MEISINGER, 2014).…”

Section: Resultados E Discussão A) Produtividades Das Culturasunclassified

Adaptação Dos Princípios Da Compostagem Laminar Ao Plantio Direto

Yagi

2017

RSA

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Resumo:A compostagem laminar é uma técnica usada particularmente para a conversão agroecológica de sistemas de produção hortícola e de fruteiras. Com o objetivo de se avaliar o princípio desta técnica às condições de um plantio direto de produção de milho silagem e feijão, foram avaliados em um delineamento em blocos ao acaso, em esquema fatorial 2x4 com 4 repetições, 2 culturas de inverno (aveia-preta e aveia-preta com ervilhaca peluda) e 4 doses de cama de aviário (0, 8, 16 e 24 Mg ha -1 ), sobre as produtividades de matérias verde e seca de milho silagem planta inteira, de grãos de feijão "da seca" e sobre atributos químicos de um Cambissolo Háplico de textura franco-argilosa (0 a 0,1 m). O adubo orgânico foi aplicado a lanço sobre as plantas de cobertura de inverno que posteriormente foram trituradas por meio de triturador horizontal, com o intuito de se misturar e incorporar adubo e restos culturais sobre a superfície do solo. Incorporações de doses de cama de aviário com resíduos triturados de aveia-preta e de aveia-preta mais ervilhaca peluda proporcionam rendimentos crescentes de matérias verde e seca de milho silagem planta inteira em solo de fertilidade alta. A compostagem laminar com cama de aviário e resíduos de aveia-preta mais ervilhaca peluda aumenta os teores de C orgânico e de CTC da camada superficial do solo. A incorporação de cama de aviário com resíduos triturados de aveia-preta mais ervilhaca peluda ameniza o acúmulo de P do solo. Palavras-chave: Cama de aviário. Adubação orgânica. Adubo verde. Avena strigosa Schieb. Vicia villosa RothAbstract -Laminar composting is a technique particularly used for the agroecological conversion of horticultural production systems. In order to evaluate the applicability of this technique under no-tillage production of corn silage and beans, a randomized complete block design was used, in a 2x4 factorial scheme with 4 replications. Two winter crops (black oats and black oats with hairy vetch), 4 poultry litter rates (0, 8, 16 and 24 Mg ha -1 ) were evaluated, on yields of green and dry matter of corn, whole plant silage, "dry" bean grains and on chemical attributes of an Inceptisol of loamy clay texture (0 to 0.1 m). The organic fertilizer was spread onto the winter cover crops, crushed afterwards by means of a horizontal crusher, in order to mix and incorporate organic residues on the soil surface. Incorporations of poultry litter doses with black oats and black oats plus hairy vetch provided increased yields of fresh forage and whole plant maize for silage dry matter in high fertile soil. Laminar composting with poultry litter and residues of black oats plus hairy vetch increased the organic C and cation exchange capacity levels of the topsoil. The incorporation of poultry litter with residues of black oats plus hairy vetch enhanced the P accumulation of the soil.

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“…N in the form of nitrate is available immediately for absorption and is readily metabolizable by the plant. Urea, for example, requires approximately 25 days to make N available (Rogeri et al, 2015). Calcium nitrate is commonly used as top-dressing to supply both N and Ca requirements (Filgueira, 2013).…”

Section: Growth Variables and Yieldmentioning

confidence: 99%

Calcium Nitrate Dose and Application Period in American Lettuce (Lactuca sativa L.)

Benett¹,

Pereira²,

Salomão³

et al. 2018

JAS

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The aim of this study was to evaluate the yield of American lettuce subjected to different dosages of calcium nitrate on two application schedules. The experiment used four replicates of a 2 × 5 factorial randomized complete block design, with two application schedules (Schedule 1: 50% of the dose at transplanting and 50% at 20 days after transplanting; Schedule 2: 50% at 10 days and 50% at 20 days after transplanting) and five doses (0, 150, 300, 450 and 600 kg ha -1 ). The following variables were evaluated: the number of inner and outer leaves, head height and diameter, head height/diameter ratio, compactness, stem diameter, relative index of chlorophyll, commercial production and nitrogen (N) and calcium (Ca) content in the inner and outer leaf. The data were subjected to analysis of variance (F test, with Tukey test for comparison of the means) for the application schedule and regression analysis for the calcium nitrate dose. The application of calcium nitrate positively influenced the nutritional characteristics of American lettuce in the 2 nd schedule and the dose of 470 kg ha -1 presented better production.

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Mineralização e nitrificação do nitrogênio proveniente da cama de aves aplicada ao solo

Cited by 21 publications

References 23 publications

Methods and rates of poultry litter fertilization for corn silage in organic system

Methods and rates of poultry litter fertilization for corn silage in organic system

Adaptação Dos Princípios Da Compostagem Laminar Ao Plantio Direto

Calcium Nitrate Dose and Application Period in American Lettuce (Lactuca sativa L.)

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