Efeito Do Nitrogênio Nas Caracteristicas Estruturais E Produção De Biomassa Em Forrageiras Do Gênero Panicum

Bittar, Dyb Youssef; Souza, Bruno Alexandre Ananias de

doi:10.37951/2595-6906.2021v5i1.6882

Cited by 3 publications

(3 citation statements)

References 14 publications

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“…The management of nitrogen fertilization favors ion since N is part of the protoplast structure, where cell division occurs, thus increasing leaf formation under these circumstances (Bittar et al, 2021).…”

Section: Resultsmentioning

confidence: 99%

Chloroplast pigments, water relationships, and growth of bell pepper under salt stress and nitrogen

Roque,

Soares,

Lima

et al. 2024

Com. Sci.

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The use of saline water sources for irrigation in semi-arid regions is a challenge for horticultural production since plants are sensitive to salt stress conditions, thus requiring techniques that allow plant acclimation, including nitrogen fertilization. From this perspective, this study aimed to evaluate the chloroplast pigments, water relationships, and growth of bell pepper plants irrigated with saline water and subjected to nitrogen fertilization. The experiment was conducted under field conditions at the Federal University of Campina Grande, Pombal - PB, where a randomized block design was adopted with a 5 x 5 factorial arrangement corresponding to five electrical conductivity levels of irrigation water (0.3, 1, 1.7, 2.4, and 3.1 dS m-1) and five nitrogen levels (50, 75, 100,125, and 150% of the dosage recommended for the crop), with three replications. The 125 and 150% N levels provided the highest relative water contents in bell pepper plants irrigated with electrical conductivity levels of up to 1.7 dS m-1. The contents of chlorophyll a, b, total chlorophyll, carotenoids, and stem diameter of bell pepper plants decreased when fertilized with 150% N and irrigated with the electrical conductivity of 3.1 dS m-1.

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Section: Resultsmentioning

confidence: 99%

Chloroplast pigments, water relationships, and growth of bell pepper under salt stress and nitrogen

Roque,

Soares,

Lima

et al. 2024

Com. Sci.

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“…Tanzania grass is demanding in terms of soil fertility and management, so fertilization and defoliation intensity are important for optimizing its production (LAGE FILHO et al, 2021). Forage species of the genus Panicum respond positively to increasing doses of nitrogen fertilization, which promote a shorter cycle, greater number of tillers, greater fresh and dry biomass, and higher crude protein content (COSTA et al, 2016;RODRIGUES et al, 2017;SILVA et al, 2017;SILVA et al, 2018;SOUZA;BITTAR, 2021). Nitrogen fertilization is a key management strategy for increasing Tanzania grass production (LINS et al, 2015).…”

Section: Revmentioning

confidence: 99%

“…When defoliation management and nitrogen fertilization are adequate, they promote growth in forage species, reducing their cycle and increasing production (SOUZA; BITTAR, 2021). Efficiency in the use of nitrogen promotes greater tillering and more vigorous regrowth, as it favors cellular recovery (SOUZA; BITTAR, 2021;OLIVEIRA et al, 2022).…”

Section: Revmentioning

confidence: 99%

Irrigation management, light interception, and nitrogen in Tanzania grass cultivation

Cajá,

Silva,

Oliveira

et al. 2023

Rev. Caatinga

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Management of nitrogen fertilization and light interception of pastures contributes to forage production in regions with low water availability. Therefore, the objective was to evaluate the effect of different nitrogen doses and light interception levels on the growth of Panicum maximum cv. Tanzania under different irrigation managements. The experiment was carried out in a greenhouse, using a factorial scheme (5 x 2 x 2), corresponding to five irrigation depths (40, 60, 80, 100, and 120% of actual evapotranspiration), two canopy light interception levels (90 and 95%), and two nitrogen doses (300 and 600 kg N ha-1 year-1). The highest biomass production occurs under irrigation with 120% of evapotranspiration. However, the best structural characteristics (tillering and number of leaves) occur with 100% of evapotranspiration, regardless of nitrogen dose and light interception level. Interruption of growth with 95% of incident light and fertilization with 600 kg N ha-1 year-1 promoted greater tillering, number of leaves and leaf length, regardless of the irrigation level. Tanzania grass management with an interruption of growth with 95% of incident light, 600 kg N ha-1 year-1, and irrigation with 80% of actual evapotranspiration led to tillering and number of leaves only 11% lower than the values found in the other treatments irrigated with 100% of actual evapotranspiration. Interruption of growth with 95% of incident light and fertilization with 600 kg N ha-1 year-1 improve the performance of Tanzania grass under deficit irrigation.

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Fontes alternativas de nitrogênio para intensificação da produção do capim Zuri

Gonçalves

Peron

Costa

2022

Rev. Ciênc. Agrovet.

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A intensificação de produção das pastagens no Brasil é altamente dependente da adubação nitrogenada. O objetivo foi avaliar a produtividade do capim Zuri, em manejo de cortes sucessivos, quando submetido ao consórcio com leguminosas forrageiras e incorporação de resíduos orgânicos em substituição à adubação com ureia. Foi utilizado o delineamento em blocos completos casualizados, com seis fontes de nitrogênio (ureia; esterco bovino; cama de frango; nabo forrageiro; amendoim forrageiro; calopogônio e soja perene), em quatro repetições. Os resíduos e a ureia foram aplicados no início do experimento e a semeadura das leguminosas forrageiras foi realizado no mesmo dia do capim. Foram realizados três cortes no capim, quando este atingiu 90 cm de altura. Avaliaram-se os seguintes parâmetros: altura, índice relativo de clorofilas, biomassa fresca e seca da parte aérea, concentração de nitrogênio, percentual de proteína e no terceiro corte, a quantidade de perfilhos e o perfilhamento. Observou-se também que houve boa produção do capim, expresso pelos índices de biomassa fresca e biomassa seca, bem como com a alta produção, independente do tratamento utilizado. É possível obter alta taxa de crescimento e desenvolvimento do capim Zuri, expresso pelo perfilhamento e produção de biomassa seca, com fornecimento de N com o uso de qualquer uma das fontes nitrogenadas utilizadas.

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Efeito Do Nitrogênio Nas Caracteristicas Estruturais E Produção De Biomassa Em Forrageiras Do Gênero Panicum

Cited by 3 publications

References 14 publications

Chloroplast pigments, water relationships, and growth of bell pepper under salt stress and nitrogen

Chloroplast pigments, water relationships, and growth of bell pepper under salt stress and nitrogen

Irrigation management, light interception, and nitrogen in Tanzania grass cultivation

Fontes alternativas de nitrogênio para intensificação da produção do capim Zuri

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