Fontes e proporções de esterco na composição de substratos para produção de mudas de jaqueira

Morais, Francisco Alexandre de; Góes, Glêidson Bezerra de; Costa, Maria Eugênia da; Melo, Isabel Giovanna Costa e; Veras, A. R. R.; Cunha, Gabriel Octávio de Mello

doi:10.5039/agraria.v7isa2204

Cited by 12 publications

(12 citation statements)

References 13 publications

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“…The damaging effects of salinity are related to the reduction of osmotic potential, which impairs water availability to the plants, the toxic effect of specific ions, such as Na+ and Cl-, and the nutritional effect (CARNEIRO et al, 2017). Therefore, even seedlings that normally do not present tolerance to saline stress, may have high sensitivity in the initial phase of its development (MORAIS et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Attenuating use of biofertilizers and saline waters in jackfruit seedlings biomass

Mesquita

Cavalcante

Alves

et al. 2020

BJD

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The salinity is one of the agriculture main obstacles worldwide, limiting plant growth and development. However, the use of biofertilizers can be a viable alternative to mitigate the effect of salinity. In this way, the aim of this study was to evaluate the effect of irrigation water salinity on two jackfruit varieties seedlings formation under the application of common and enriched bovine biofertilizers, respectively. In that sense, an experiment was carried out in a greenhouse in the period of october/2016 to february/2017, in the Federal University of Paraiba (FUPB), in the county of Areia, Paraiba state, Brazil. The substrate was collected from the 10 cm depht of a Distrophic Regolithic Neossol. The experimental design was completely randomized (DCR), in factorial scheme 5x3x2, with three replications, referring to the electrical conductivity levels of the irrigation water (0.5; 1.0; 2.0; 3.0 and 4.0 dS m -1 ), two types of biofertilizer (common biofertilizer; enriched biofertilizer; absence of biofertilizer) and two jackfruit varieties (soft and hard jackfruit), packed in black polyethylene bags with a maximum capacity of 3.0 kg, totaling 90 treatments. The biofertilizer was diluted in non-saline water in the proportion of 1:3, it was applied only once to 10% of the volume of substrate, days two before sowing. The studied variables were -leaf area (LR); root area (RA); root diameter (RD); biomass allocation (BA); root dry mass (RDM); dry mass of aerial (AP) part and total dry mass (TDM). Biofertilizers did not inhibit but positively attenuate the harmful effects of excessive salt content in the irrigation water on jackfruit phytomass production. The growth and development of the jacfruits seedlings was positively expressed in the treatments with rich and common biofertilizer, respectively.A salinidade é um dos principais entraves em todo mundo, constituindo-se num dos fatores limitantes ao crescimento e desenvolvimento das plantas. No entanto, o uso de biofertilizantes pode ser uma alternativa viável para mitigar o efeito da salinidade. Deste modo, objetivo deste estudo foi avaliar os efeitos da salinidade da água de irrigação sobre a formação de duas

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Section: Introductionmentioning

confidence: 99%

Attenuating use of biofertilizers and saline waters in jackfruit seedlings biomass

Mesquita

Cavalcante

Alves

et al. 2020

BJD

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“…The jackfruit belongs to the family Moraceae -originally from India was introduced in Brazil in the 17 th century and is cultivated in an extractive way in domestic orchards in almost all of Brazil (LORENZI et al, 2006). Thus, agronomic knowledge about the propagation and formation of seedlings can encourage the small producers to explore the fruits for in natura consumption or processing in a commercial way (ASQUIERI et al, 2008;MORAIS et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Quality of jackfruit seedlings under saline water stress and nitrogen fertilisation

Oliveira

Souto

Cavalcante³

et al. 2017

SCA

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The lack of good quality water for agriculture purposes regarding salts and quantity in relation to demand for the plants has, for more than 30 years, been forcing the use of restrictive water because of salinity issues in agricultural production systems worldwide. In Brazil, the situation is no different, in the semi-arid areas, there are reports of losses of seed germination, initial growth of seedlings and yield of crops of commercial importance due to the salinity of the water used in irrigation systems. Therefore, an experiment was carried out from June to September/2014 in a protected environment, with a plastic film on the upper base and a thin screen against insects on the sides, to evaluate the effects of salinity interaction between water irrigation and nitrogen fertilisation sources on soil salinity, initial plant growth and the quality of the jackfruit seedlings. The treatments were distributed in randomised blocks, in the factorial scheme 5 × 3, reference irrigation water of 0.3, 1.0, 2.0, 3.0 and 4.0 dS m -1 , in soil with and without ammonium sulfate and urea. An increase in the salinity of the irrigation water to 1.32 and 1.70 dS m -1 on the substrate without nitrogen stimulated an increase in the number of leaves and leaf area of the jackfruit seedlings. The ammonium sulfate was the nitrogen source that mainly contributed to the increase of soil salinity and to the reduction of the quality index of the seedlings. Despite the reduction of the Dickson quality index due to the salinity of the irrigation water and the nitrogen sources, the seedlings were suitable for cultivation. Key words: Artocarpus heterophyllus, water salinity, nitrogen fertilisers. ResumoA falta de água de boa qualidade para fins agrícola em relação aos sais e quantidade em relação à demanda pelas plantas tem, há mais de 30 anos, forçado o uso de água restritiva por problemas de salinidade em sistemas de produção agrícola em todo o mundo. No Brasil, a situação não é diferente; nas áreas semiáridas, há relatos de perdas de germinação de sementes, crescimento inicial de mudas e rendimento de culturas de importância comercial devido à salinidade da água utilizada em sistemas de irrigação. Assim, foi realizado um experimento de junho a setembro de 2014 em ambiente protegido, com filme plástico na base superior e tela fina nas laterais contra insetos, para avaliar os efeitos da interação salinidade entre irrigação e fontes de fertilização nitrogenada na salinidade do solo, crescimento inicial da planta e qualidade das mudas de jaqueira. Os tratamentos foram distribuídos em blocos casualizados, no esquema fatorial 5 × 3, referente às água de irrigação de 0,3; 1,0; 2,0; 3,0 e 4,0 dS m -1 , em solo com e sem sulfato de amônio e ureia. O aumento na salinidade da água de irrigação para 1,32 e 1,70 dS m -1 no substrato sem nitrogênio estimulou aumento no número de folhas e área foliar das plântulas de jaqueira. O sulfato de amônio foi à fonte de nitrogênio que mais contribuiu para o aumento da salinidade do solo e para a redução ...

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“…For seedling production, plant growth is variable, depending on the species, sources and manure proportions (MORAIS et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Growth and Levels of N, P and K in Rootstocks of Tamarind Trees Using Organic Substrates and Doses of Phosphorus

et al. 2016

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-The aim of this study was to evaluate different organic substrates and phosphorus doses on the growth and leaf content of nitrogen, phosphorus and potassium in rootstocks of Tamarindus ). The experiment was conducted in a randomized block design (RBD), with 12 treatments (substrates), four replications and 10 plants per plot, totaling 480 plants. The goat manure and the organic compound were the most suitable treatments for the production of rootstocks of the tamarind tree. The maximum dose of 7.5 g kg -1 of simple superphosphate caused the highest levels of phosphorus and potassium in the dry mass of shoots. The nutrients in the dry matter of shoots accumulated in the following order: N > K > P.

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Fontes e proporções de esterco na composição de substratos para produção de mudas de jaqueira

Cited by 12 publications

References 13 publications

Attenuating use of biofertilizers and saline waters in jackfruit seedlings biomass

Attenuating use of biofertilizers and saline waters in jackfruit seedlings biomass

Quality of jackfruit seedlings under saline water stress and nitrogen fertilisation

Growth and Levels of N, P and K in Rootstocks of Tamarind Trees Using Organic Substrates and Doses of Phosphorus

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