Influence of the application of fulvic acid on seedling root growth and yield in lettuce

Borcioni, Elis; Mógor, Átila Francisco; Pinto, Fernanda

doi:10.5935/1806-6690.20160061

Cited by 18 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It was also verified that, when inoculation with A. brasilense or nitrogen cover fertilization was not carried out, the plants obtained from direct sowing provides greater fruit development and productivity. The larger diameter of the stem, observed in the plants obtained from direct sowing, along with the non-restriction of the space for the initial development of the roots, may have contributed to a greater exploitation of the soil, culminating in greater efficiency in the absorption and translocation of nutrients and others substances (Nibau et al, 2008;Brunes et al, 2015;Borcioni et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Planting method, nitrogen fertilization and inoculation for diazotrophic bacteria for Cantaloupe melon plants

Vendruscolo

Oliveira

Campos

et al. 2019

Rev. Colomb. Cienc. Hortic.

View full text Add to dashboard Cite

The objective of this study was to evaluate the effects on plant development, productivity and fruit quality from combinations of planting methods, nitrogen fertilizer applications and inoculation with Azospirillum brasilense in Cantaloupe melons cultivated in a protected environment. A randomized blocks design was adopted with a 2×2×2 factorial scheme with five replications. The treatments consisted of combinations of planting methods (pre-established seedlings or direct field sowing), inoculation with A. brasilense (with or without) and nitrogen fertilization (with and without). During the vegetative phase, the height, stem diameter, number and length of plant internodes and relative chlorophyll content were evaluated. Fifty-five days after planting, the leaf nitrogen content, leaf area and dry mass were measured. At harvest, the number of days between planting and harvesting was calculated, and the fresh weight, circumference, length, bark and pulp thickness and fruit productivity were evaluated. It was verified that A. brasilense did not affect any of the evaluated characteristics. On the other hand, direct field seed sowing decreased the production time and provided good plant development. However, the size and productivity of the fruits were higher when pre-established seedlings were used, with or without inoculation with A. brasilense, fertilized with nitrogen. It was concluded that the combinations of the different sowing methods, nitrogen fertilization and inoculation with A. brasilense affected the development and characteristics of the Cantaloupe melon plants and fruits.

show abstract

Section: Resultsmentioning

confidence: 99%

Planting method, nitrogen fertilization and inoculation for diazotrophic bacteria for Cantaloupe melon plants

Vendruscolo

Oliveira

Campos

et al. 2019

Rev. Colomb. Cienc. Hortic.

View full text Add to dashboard Cite

show abstract

“…Em relação à resposta do comprimento radicular às substâncias húmicas, pode estar associada possivelmente devido à presença de compostos semelhantes às auxinas nas substâncias húmicas, contribuindo para o crescimento das plantas, especialmente do sistema radicular (BORCIONI et al, 2016). O estímulo do crescimento radicular pode refletir em maior produção ao final do ciclo devido ao maior volume de solo explorado (AGUIAR et al, 2009).…”

Section: Discussionunclassified

Utilização de substratos alternativos e substâncias húmicas para produção de mudas de gergelim

Pontes

Silva-Matos

Cordeiro

et al. 2021

RICA

View full text Add to dashboard Cite

A semente de gergelim é pequena e leve, tornando-se um problema durante a semeadura devido aos gastos desnecessários de sementes. Após a emergência das plântulas o seu desenvolvimento é muito lento em seu período crítico, assim, comprometendo a produtividade pela excessiva densidade de plantas e competição com plantas daninhas que nem sempre são controladas de forma adequada. Uma alternativa interessante seria a produção de mudas de gergelim utilizando-se substrato alternativo e substâncias húmicas. Objetivou-se avaliar a produção de mudas de gergelim ‘CNPA G3’ em substrato formulado a partir de areia e biomassa do caule de babaçu sob crescentes doses de substâncias húmicas. O delineamento experimental foi inteiramente casualizado, em arranjo fatorial 6 x 4, referente a seis substratos (S) a base de areia e de biomassa do caule de babaçu (BCB): S1-100% areia; S2-20% BCB + 80% areia; S3-40% BCB + 80% areia; S4-60% + 40% areia; S5-80% BCB + 20% areia; S6-100% BCB e quatro doses de substâncias húmicas: D1-0; D2-12.5; D3-25 e D4-50 mL. Para diagnóstico de efeito significativo os tratamentos foram comparados entre si pelo teste Tukey. A biomassa do caule de babaçu influenciou todas as variáveis analisadas, diferente de substâncias húmicas, que não apresentou diferença significativa para o comprimento radicular. Recomenda-se o uso de 80% de biomassa do caule de babaçu + 20% areia como substrato alternativo na produção de mudas de gergelim. A aplicação de substâncias húmicas ao substrato não foi capaz de mostrar benefício relevante suficiente no desenvolvimento de mudas de gergelim.

show abstract

“…PuroHumus ® , produced from vermicompositing, is characterized by higher stabilization of organic wastes that, through earthworm digestive tract, suffer enzymatic reactions and are quickly converted into large amount of humic substances (HS), which are organic compounds with high persistence in substrate (Baldotto and Baldotto, 2014), and that presented efficient responses in the process of seedling production (Baldoto et al, 2015;Borcioni et al, 2016;Santos et al, 2018).…”

Section: Use Of Hydrogel In Different Substrates For Production Of Dementioning

confidence: 99%

Use of substrates and hydrogel to produce desert rose seedlings

et al. 2019

View full text Add to dashboard Cite

Adenium obesum (Forssk.) Roem. & Schult., widely known as desert rose, has attracted interest for its esthetic characteristics, which are influenced by the process of seedling production. Using two consecutive experiments installed fully at random, the study aimed at assessing the use of different substrates and hydrogel to produce desert rose seedlings in a protected environment. First, eleven substrates were tested, prepared as follows: OrganoAmazon®; PuroHumus®; soil; rice husk in natura; carbonized rice husk, sawdust and cattle manure. Then, three substrates were tested (S1 - OrganoAmazon® + PuroHumus®; S2 - OrganoAmazon® + PuroHumus® + rice husk in natura and S3 - OrganoAmazon® + PuroHumus® + carbonized rice husk) associated to four hydrogel levels: 0 (daily irrigation), 1, 2 and 3 g L−1 (irrigated on alternate days). Growth variables and quality index of seedlings were assessed. Six substrates (all of them without addition of sawdust and where used in mix) were grouped as those the promoted appropriate growth of seedlings, with height, number of leaves, collar diameter, root length and aerial part biomass superior to 6.5 cm; 13; 12 mm; 7.5 cm and 0.45 g, respectively. The substrate composed of OrganoAmazon® + PuroHumus® (1:1 v/v), when irrigated daily, was the one that favored most the production of quality seedlings. The use of hydrogel in substrates with shifts of irrigation on alternate days did not favor the production of desert rose seedlings.

show abstract

Influence of the application of fulvic acid on seedling root growth and yield in lettuce

Cited by 18 publications

References 19 publications

Planting method, nitrogen fertilization and inoculation for diazotrophic bacteria for Cantaloupe melon plants

Planting method, nitrogen fertilization and inoculation for diazotrophic bacteria for Cantaloupe melon plants

Utilização de substratos alternativos e substâncias húmicas para produção de mudas de gergelim

Use of substrates and hydrogel to produce desert rose seedlings

Contact Info

Product

Resources

About