Slow-release and organic fertilizers on early growth of Rangpur lime

Machado, Daniel Lucas Magalhães; Lucena, Cícero Cartaxo de; Santos, Dierlei dos; Siqueira, Dalmo Lopes de; Matarazzo, Pedro Henrique Monteiro; Struiving, Tiago Barbosa

doi:10.1590/s0034-737x2011000300017

Cited by 23 publications

(25 citation statements)

References 19 publications

(14 reference statements)

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“…Em trabalho realizado por Pansera et al (2013), em condições semelhantes de irrigação, por um período de 145 dias, com Eucalyptus grandis, usando substrato comercial e diferentes fontes nitrogenadas, foram encontradas perdas de 80 mg e 110 mg tubete -1 de N com aplicação de 155 mg tubete -1 de N na forma de sulfammo e ureia comum, respectivamente. Destaca-se que os fertilizantes de liberação lenta são pouco suscetíveis a perdas, minimizando riscos de poluição ambiental (Melo et al, 2010;Machado et al, 2011) e proporcionando maior crescimento de mudas em relação aos fertilizantes NPK convencionais (Muniz et al, 2013). Souza et al (2008) destacam que a lixiviação é proporcional à quantidade de nutrientes presente no substrato e, segundo Fochesato et al (2008), o sistema de produção de mudas em tubetes com irrigação diária contribuiu para perda significativa de nutrientes, principalmente em substratos com teor elevado de nutrientes.…”

Section: Resultsunclassified

Perdas de Nutrientes por Lixiviação na Produção de Mudas de Cedro Australiano

et al. 2017

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24 00 2017 e20160081 xxx.-xxx 0 0 0 Este é um artigo publicado em acesso aberto (Open Access) sob a licença Creative Commons Attribution, que permite uso, distribuição e reprodução em qualquer meio, sem restrições desde que o trabalho original seja corretamente citado. Perdas de RESUMOO objetivo do trabalho foi quantificar as perdas de nutrientes por lixiviação associadas ao uso de fertilizante mineral na produção de mudas de cedro australiano (Toona ciliata M. Roem var. australis) em diferentes substratos. O experimento foi realizado em casa de vegetação, em delineamento inteiramente casualizado com três repetições, com dois substratos (substrato comercial e composto de dejetos de suínos) e quatro doses de fertilizante mineral (0 kg; 3 kg; 6 kg e 9 kg m -3 ). No decorrer de 105 dias foram avaliadas as perdas de N, P e K por lixiviação e, no final desse período, quantificado o crescimento e a qualidade das mudas. O substrato comercial proporcionou menor perda de nutrientes por lixiviação e, quando associado ao fertilizante mineral, apresentou maior potencial de crescimento e de qualidade de mudas em comparação ao composto de dejetos de suínos.Palavras-chave: crescimento de mudas, Toona ciliata, fertilizante mineral. Nutrient Losses by Leaching in the Production of Australian Cedar Seedlings ABSTRACTThis study aimed to quantify nutrient losses by leaching in the production of Toona ciliata seedlings in different substrate associated with the use of mineral fertilizer. The experiment was conducted in a greenhouse in a completely randomized design with three replications, in factorial arrangement with two substrates (commercial substrate and swine manure compost) and four doses of mineral fertilizer (0; 3; 6 and 9 kg m -3 ). In the course of 105 days we evaluated losses of N, P and K by leaching and end of this period we quantified growth and quality of seedlings. The commercial substrate contributed with reduced loss of nutrients through leaching and when combined with mineral fertilizer showed higher growth potential and seedlings quality compared to the compound of swine manure.

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Section: Resultsunclassified

Perdas de Nutrientes por Lixiviação na Produção de Mudas de Cedro Australiano

et al. 2017

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“…Fertilizers with higher efficiency represent a new trend to maintain fertilizer consumption and minimize environmental pollution (Du et al, 2008;Tang et al, 2009;Machado et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Ammonia volatilization from coated urea forms

Nascimento¹,

Vitti

Faria³

et al. 2013

Rev. Bras. Ciênc. Solo

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SUMMARYNitrogen fertilization is a major component of the cost of agricultural production, due to the high cost and low efficiency of fertilizers. In the case of urea, the low efficiency is mainly due to losses by volatilization, which are more pronounced in cultivation systems in which plant residues are left on the soil. The objective of this work was to compare the influence of urea coated with sulfur or boric acid and copper sulfate with conventional N fertilizers on N volatilization losses in sugar cane harvested after stubble burning. The sources urea, sulfurcoated urea, urea coated with boric acid and copper sulfate, as well as nitrate and ammonium sulfate, were tested at amounts containing N rates of 120 kg ha -1 N. The integration of new technologies in urea fertilization can reduce N losses by volatilization. These losses were most reduced when using nitrate and ammonium sulfate. The application of a readily acidified substance (boric acid) to urea was more efficient in reducing volatilization losses and nutrient removal by sugar cane than that of a substance with gradual acidification (elemental sulfur).

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“…According to Muniz et al (2013) and Menegatti et al (2017b), supplying nutrients at the fertilizer dose determined as ideal for a species results in a satisfactory increase in both RCD and H, accelerating the growth process of the plants at the same time as obtaining seedlings with superior vigour, resistance and robustness. Furthermore, defining the ideal dose allows the input to be used efficiently, avoiding fertilizer wastage, thereby reducing production costs (Machado et al, 2011;Muniz et al, 2013).…”

Section: Journal Of Agricultural Studiesmentioning

confidence: 99%

Controlled-Release Fertilizer in the Production of Seedlings of Anonna cacans Warm

Smiderle

Souza

Menegatti

2020

JAS

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The use of controlled-release fertilizers is a promising alternative for supplying nutrients during the initial growth of nursery seedlings. The aim of this study was to verify the effects of different doses of controlled-release fertilizer (CRF) on initial growth and nutritional status in seedlings of Anonna cacans Warm. The seeds were originally sown in a seedbed and then, after initial seedling development, were transplanted into polyethylene bags containing a substrate of washed medium sand, to which different doses of CRF had been added before transplanting. The experimental design was completely randomised, with four treatments, five doses of Osmocote® NPK 19-06-10 formulation (0, 1, 2, 4 and 8 g L -1 of substrate), with four replications, each replication comprising three seedlings (one in each container).Increases in root-collar diameter and plant height were determined throughout the experimental period (6 months) from data collected every 30 days after transplanting. At the end of the experiment the following were evaluated: height, root-collar diameter, N concentration, chlorophyll index, chlorophyll concentration (a, b and total) and leaf area. Root-collar diameter and height showed a positive linear response to increases in the fertilizer dose. From a 4 g L -1 dose of CRF, the nutrient supply added to the substrate of medium sand optimises the initial phase of plant growth and guarantees the adequate nutritional status of Anonna cacans, and can be suggested as a viable technique for use in forest nurseries, and one which results in efficient use of the input material and avoids fertilizer wastage.

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Slow-release and organic fertilizers on early growth of Rangpur lime

Cited by 23 publications

References 19 publications

Perdas de Nutrientes por Lixiviação na Produção de Mudas de Cedro Australiano

Perdas de Nutrientes por Lixiviação na Produção de Mudas de Cedro Australiano

Ammonia volatilization from coated urea forms

Controlled-Release Fertilizer in the Production of Seedlings of Anonna cacans Warm

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