Avaliação Das Técnicas De Determinação De Nitrogênio Por Cromatografia Iônica (Ic) E Por Teor De Nitrogênio Total (Tn) Por Quimiluminescência

Hoehne, Lucélia; Schneider, Fernando Afonso; Stülp, Simone; Tischer, Julia Spellmeyer; Santos, Fábio dos

doi:10.17058/tecnolog.v20i1.6230

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…The physical and chemical characteristics of the compost are presented in Table 1. For the determination of N, the Kjeldahl method (Hoehne et al, 2016) was used, and the OM determination was based on the method proposed by Carmo & Silva (2012).…”

Section: Methodsmentioning

confidence: 99%

Utilization of bedded cattle confinement for organic manure of maize crop

Mota

Andrade

Pinto

et al. 2019

Rev. bras. eng. agríc. ambient.

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The use of organic wastes from housing systems in a compost bedded pack barn model could supply much of the fertiliser demand in the farm. Moreover, with the increase in food consumption from sustainable livestock, the use of compost generated in the farm itself becomes economically viable. This study aimed to evaluate the effect of organic manure from bedded cattle confinement applied at different moments on maize crop. The experiment was carried out in a randomized blocks with five treatments and five repetitions. The data were submitted to analysis of variance and the means were compared by Scott-Knott test at p ≤ 0.05. The treatments with addition of fresh compost and mature compost with nitrogen cover had higher production of maize shoot dry matter when compared to treatments without compost. For all variables analysed, the treatments with compost were superior to the other ones. The soil used for growing silage maize has improved considerably its chemical characteristics when the compost was applied. The use of bedding material compost from sheds as organic manure is recommended as a sustainable alternative in the reuse and treatment of waste from cattle confinement farm. Aproveitamento da cama de confinamento de bovino para adubação orgânica do milho RESUMO: O uso de resíduos orgânicos, provenientes de sistema de confinamento no modelo 'Compost Barn' poderá suprir grande parte da demanda por adubo na propriedade. Além disso, com o aumento do consumo de alimentos oriundos da pecuária sustentável, a utilização de adubo gerado na própria propriedade se torna economicamente viável. Este trabalho teve como objetivo estudar o efeito da adubação orgânica proveniente da cama de confinamento de bovino aplicada em diferentes momentos no cultivo do milho. O delineamento experimental utilizado foi em blocos casualizados com cinco tratamentos e cinco repetições. Os dados foram submetidos à análise de variância e as médias foram comparadas pelo teste de Scott-Knott a p ≤ 0,05. Os tratamentos com adição de composto fresco e curtido com cobertura nitrogenada apresentaram maior produção de matéria seca da parte aérea do milho quando comparados com os tratamentos sem o uso de composto. Para todas as variáveis analisadas, os tratamentos que utilizaram o composto foram superiores aos demais tratamentos. O solo utilizado no cultivo do milho para silagem melhorou consideravelmente suas características químicas com a aplicação do composto. O aproveitamento do material de cama proveniente de galpões de compostagem, como adubo orgânico, é recomendável como uma alternativa sustentável no reuso e tratamento de dejetos da produção leiteira. Em longo prazo, o material da cama incorpora nutrientes ao solo, aumenta a produção agrícola e agrega valor à propriedade agrícola.Palavras-chave: Zea mays L., bovino leiteiro, pecuária sustentável, Compost Barn

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Section: Methodsmentioning

confidence: 99%

Utilization of bedded cattle confinement for organic manure of maize crop

Mota

Andrade

Pinto

et al. 2019

Rev. bras. eng. agríc. ambient.

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“…This technique determines the total nitrogen content of a sample by displacing this element from ammonia salts, and subsequently converting it into ammonium by digestion, neutralization, and distillation. Finally, a titration is carried out to attain the total nitrogen amount (Hoehne et al, 2016). Based on these results, the total nitrogen was converted into the approximate protein content of the sample, and the results were expressed in mg.cotyledon -1 .…”

Section: Reserve Mobilizationmentioning

confidence: 99%

Molecular aspects during seed germination of Erythrina velutina Willd. under different temperatures (Part 1): reserve mobilization

et al. 2020

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Erythrina velutina Willd. (Fabaceae) is a tree species that bears social, ecological, and economic importance for northeastern Brazil, a region with frequent temperature variations. The objective of this work was to evaluate the mobilization of reserves during seed germination and seedling establishment of E. velutina at different temperatures, and how these mechanisms are affected in a thermal-stress situation. The seeds germinated at 5, 15, 25, 35, and 45 °C, and the physiological and biochemical aspects of reserve mobilization (starch, lipids, and total proteins) were assessed during seedling establishment. Germination, vigor, and the mobilization of reserves from the cotyledons to the embryonic axis are affected according to the incubation temperature. The temperature of 25 °C favors the mobilization of reserves during seed germination and seedling establishment in E. velutina. In a situation of thermal stress, high temperatures affect the establishment of the seedlings, whereas low temperatures compromise the mobilization of reserves.

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Avaliação Das Técnicas De Determinação De Nitrogênio Por Cromatografia Iônica (Ic) E Por Teor De Nitrogênio Total (Tn) Por Quimiluminescência

Cited by 2 publications

References 5 publications

Utilization of bedded cattle confinement for organic manure of maize crop

Utilization of bedded cattle confinement for organic manure of maize crop

Molecular aspects during seed germination of Erythrina velutina Willd. under different temperatures (Part 1): reserve mobilization

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