Nodulação, acúmulo de nitrogênio no solo e na planta, e produtividade de soja em solo tratado com lodo de estação de tratamento de resíduos industriais

Behling, Maurel; Dias, Fabiana De Carvalho; Sobrinho, Nelson Moura Brasil do Amaral; Oliveira, C.; Mazur, Nelson

doi:10.1590/s0006-87052009000200020

Cited by 7 publications

(5 citation statements)

References 10 publications

(5 reference statements)

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“…The agricultural use of sewage sludge increased the productivity of several crops. Behling et al (2009) observed an increase of 1.224 kg ha −1 in the yield of soybean fertilized with sewage sludge. Albuquerque et al (2015) reported that sunflower yield increased with sewage sludge dose.…”

Section: Introductionmentioning

confidence: 95%

Cadmium, copper, and chromium levels in maize plants and soil fertilized with sewage sludge

et al. 2020

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The use of sewage sludge as fertilizer is a widespread practice. However, the presence of heavy metals and pathogens in sludge are a cause for concern. The objective of this study was to determine the levels of cadmium (Cd), copper (Cu), and chromium (Cr) in leaves, aerial parts, and kernels of maize grown in red latosol that was fertilized with sewage sludge for 15 consecutive years. Metal concentrations in soil and kernel yield were also determined. A randomized block design was used, with five replicates and four treatments: T1, mineral fertilization (control); T2, application of sewage sludge at 5 Mg ha−1; T3, application of sewage sludge at 10 Mg ha−1; and T4, application of sewage sludge at 20 Mg ha−1. All plots received potassium (K) supplementation. Fertilization with sewage sludge was as efficient as mineral fertilization. Sewage sludge had no negative effect on kernel yield. A negative correlation was observed between metal concentrations in soil and plant samples. Cd was detected at ≤0.04 mg kg−1 in kernels and Cu at ≤2.34 mg kg−1, whereas Cr was not detected in any sample. These levels are considered safe for human consumption, according to the Brazilian Health Regulatory Agency. Fertilization with sewage sludge for 15 years did not increase Cu, Cd, and Cr levels in the soil and had no negative effect on maize, which shows the potential of sewage sludge for agricultural use.

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Section: Introductionmentioning

confidence: 95%

Cadmium, copper, and chromium levels in maize plants and soil fertilized with sewage sludge

et al. 2020

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“…On soybeans, according to Behling et al (2009), a high supply of soil N to plants can lead to high absorption rates of this nutrient, possibly resulting in a reduction of nitrogen fixation. Despite the availability and potential, there are no enough studies in soybeans showing the benefits of using poultry litter in substitution of mineral fertilizer.…”

Section: Introductionmentioning

confidence: 99%

Growth and nodulation of soybean plants fertilized with poultry litter

et al. 2013

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Nowadays much of the chemical fertilizers used in Brazil come from imports, what creates the necessity to seek for alternative fertilizers. One possibility is organic fertilizers, including poultry litter, which presents increasing availability in various regions of the country, due to the expansion of the poultry industry. Despite its availability, there are no enough studies that show the benefits of using poultry litter on soybeans in substitution of mineral fertilizer. The present study aimed to evaluate the effect of different doses of poultry litter on leaf chlorophyll content, nodulation, and development of soybean plants. It was used a completely randomized design with five doses of poultry litter (0, 1, 2, 4 and 8 t ha-1) and a control with mineral fertilizer with four repetitions. On stages R1 and R5, chlorophyll readings were done using a portable meter and also the measurement of plant height. Plants were cut near the surface, roots were washed and the nodules were detached and counted. After that, it was determined the dry weight of plant roots, nodules, and shoots. Soybean fertilization with poultry litter increases the chlorophyll content of leaves, plant height, shoot dry matter, root dry matter, and nodulation. The use of poultry litter on soybean favors its growth with decreasing increments, except for root dry matter, and with an optimum dose for each variable. The supply of poultry litter can replace mineral fertilizers in terms of soybean growth.

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“…Dentre os tratamentos, o que possuía esterco caprino foi o que obteve os maiores valores em relação a todas as variáveis fenológicas analisadas. Observou-se também que o tratamento com o menor valor em relação a variável número de nódulos foi o com cama de aviário que, de acordo com os estudos sobre a nodulação de Behling et al (2009), isso se deve ao alto nível de nitrogênio liberado no solo oriundo do esterco, acarretando assim no baixo desenvolvimento dos nódulos radiculares, pois era desnecessária a produção desse elemento através da nodulação. Em relação à altura obtida, as plantas dessa cultivar quase conseguiram atingir a altura média da espécie que, conforme, Araujo (2015) em seu trabalho caracterização física, fisiológica e anatômica de sementes de Crotalaria juncea L., é entre 3,0 a 3,5 m de altura.…”

Section: Resultados E Discussõesunclassified

Nodulation of bacteria in crotalaria-juncea (Crotalaria juncea L., fabaceae) and pigeon pea (Cajanus cajan (L.) Millsp., Fabaceae) crops with different sources of organic matter

Araujo¹,

Pinheiro²,

Silva³

et al. 2019

RAmb.

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O método tradicional da agricultura brasileira possui a característica de acelerar a degradação dos solos, reduzindo assim a produtividade a cada novo cultivo. Nos últimos tempos foram observadas tentativas de reverter esse processo e recuperar a fertilidade desses solos, por meio de práticas que utilizam processos naturais, a fim de reintroduzir nutrientes e elementos importantes ao solo. A associação, entre o pré-plantio de plantas da família Fabaceae e a utilização de estercos, vem sendo muito visada entre os agricultores que procuram por meios mais sustentáveis e econômicos de revigorar solos carentes em nitrogênio e matéria orgânica. Nesse sentido, a presente pesquisa teve como objetivo identificar qual a fonte de matéria orgânica de origem animal que potencializará ao máximo a nodulação de bactérias em cultivos de Crotalaria juncea L. e Cajanus cajan (L.) Millsp. A área da pesquisa ocorreu na casa de vegetação da Universidade Estadual de Alagoas, Campus Arapiraca. O delineamento experimental foi inteiramente casualizado com quatro tratamentos (solo sem esterco (controle), esterco bovino, esterco caprino, e esterco de aviário), com cinco repetições. Os dados foram submetidos a análise de variância por comparação de médias através do teste de Tukey a 5% de probabilidade pelo programa SISVAR. As variáveis analisadas foram altura, número de folhas, diâmetro do caule e número de nódulos. A aplicação de estercos não influenciou significativamente nas variáveis da Crotalaria juncea L. Os estercos bovino e caprino influenciaram de forma significativa nas variáveis da Cajanus cajan (L.) Millsp.

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Nodulação, acúmulo de nitrogênio no solo e na planta, e produtividade de soja em solo tratado com lodo de estação de tratamento de resíduos industriais

Cited by 7 publications

References 10 publications

Cadmium, copper, and chromium levels in maize plants and soil fertilized with sewage sludge

Cadmium, copper, and chromium levels in maize plants and soil fertilized with sewage sludge

Growth and nodulation of soybean plants fertilized with poultry litter

Nodulation of bacteria in crotalaria-juncea (Crotalaria juncea L., fabaceae) and pigeon pea (Cajanus cajan (L.) Millsp., Fabaceae) crops with different sources of organic matter

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