Influência de calcário e fósforo no desenvolvimento e produção de variedades de maracujazeiro-amarelo

Brasil, E. C.; Nascimento, E. V. S. do

doi:10.1590/s0100-29452010005000092

Cited by 8 publications

(6 citation statements)

References 12 publications

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Section: Resultsunclassified

“…A importância do fósforo para o desenvolvimento de mudas tem sido destacada por vários autores (Brasil & Nascimento 2010;David et al, 2008;Saraiva et al, 2011;Silva et al, 2017). De acordo com Brasil & Nascimento (2010), o fósforo tem grande importância para o crescimento inicial das plantas por atuar no processo de armazenamento e transferência de energia, estando diretamente envolvido na absorção ativa de nutrientes. Em trabalho realizado com mudas de mamoeiro, Saraiva et al (2011) mostraram que o efeito positivo do fósforo aumenta a matéria seca das raízes do mamoeiro, o que deve se refletir em maior capacidade de absorção de nutrientes, graças ao maior desenvolvimento radicular.…”

Section: Resultsunclassified

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Aproveitamento de escória de siderurgia em substratos alternativos para produção de mudas de pimenteira Dedo-de-moça

et al. 2018

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RESUMO Estudos relacionados com o aproveitamento de escória de siderurgia tornaram-se imprescindíveis, pela possibilidade de seu uso como componente de substratos na produção de mudas e por esse uso minimizar o risco de contaminação ambiental, decorrente do descarte inadequado. Assim, objetivou-se, com este trabalho, avaliar o efeito de níveis crescentes de escória de siderurgia em substratos, compostos por solo com esterco bovino curtido e areia, nas variáveis de crescimento e na qualidade de mudas de pimenteira dedo-de-moça (Capsicum baccatum L.). Utilizou-se o delineamento em blocos casualizados, tendo como tratamentos cinco concentrações de escória (0%; 2,5%; 5%; 10% e; 20%) e quatro repetições. As avaliações ocorreram aos 55 dias após semeadura, consistindo na contagem do número de folhas, na medição da altura de planta e do diâmetro do coleto, na quantificação das massas secas de folhas e raízes da planta e na determinação do Índice de Qualidade de Dickson. Modelos de regressão foram ajustados (P < 0,05) aos tratamentos com níveis crescentes de escória de siderurgia. A adição em torno de 10% de escória ao substrato proporcionou os maiores valores das variáveis de crescimento, em mudas de pimenteira Dedo-de-moça.

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Section: Resultsunclassified

Aproveitamento de escória de siderurgia em substratos alternativos para produção de mudas de pimenteira Dedo-de-moça

et al. 2018

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“…Pits with dimensions of 60 cm in diameter and 60 cm in depth were made with the aid of a motorized drill bit. Planting fertilization was carried out based on the soil analysis, using as a reference the fertilization for sour passion fruit: dolomitic limestone to raise the V to 50 % (Brasil & Nascimento 2010); 250 g pit -1 of P 2 O 5 (source: simple superphosphate); 100 g pit -1 of N (source: ammonium sulphate); 100 g pit -1 of K 2 O (source: potassium chloride); 100 g pit -1 of FTE BR12; and 10 L pit -1 of organic matter (source: chicken litter). The first cover fertilization was carried out at 60 days after planting, followed by others at 45-day intervals, using 100 g plant -1 (1:2 of potassium chloride and ammonium sulphate).…”

Section: Methodsmentioning

confidence: 99%

Yield and physical characterization of Passiflora cincinnata in the Brazilian Savanna

D’Abadia

Costa

Faleiro

et al. 2021

Pesqui. Agropecu. Trop.

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For the Caatinga passion fruit (Passiflora cincinnata Mast.), there are no indications of varieties specific for the Brazilian Savanna conditions, as well as conduction techniques that make it possible to express a greater yield potential. This study aimed to evaluate the yield and quality of CPEF2220 and CBAF2334 populations in espalier and trellis conduction systems. A completely randomized design was used, in a 2 x 2 factorial arrangement, with three replications of four plants per plot. The fruit yield and physical characteristics were evaluated throughout the production cycle. The average yield was 8.0 kg plant-1 (3.5-14.9 kg plant-1) and the average number of fruits per plant was 139.1 (55.8-283.5), with average pulp yield of 29 %. There was a tendency to increase the number and yield of fruits for the CPEF2220 population conducted in the espalier system. The plant survival rate was 41 % (CPEF2220) and 87.5 % (CBAF2334), with a higher adaptation to the Brazilian Savanna conditions, while the CPEF2220 population presented a higher yield potential. Reductions in mass, longitudinal and equatorial diameter and fruit shape were observed throughout the harvest, with some exceptions for the espalier system, which showed more elongated fruits. The trellis system showed a greater yield potential for the parent populations of the passion fruit BRS Sertão Forte, for the study conditions.

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“…Phosphorus is especially importance in the initial growth stages of plants because it is used in energy storage and transfer processes and is directly involved in the active absorption of other nutrient (BRASIL; NASCIMENTO, 2010). When development occurs more rapidly, there is greater initiation and growth of leaves earlier in the crop cycle producing a larger foliar area that increases solar radiation interception and photoassimilate production (BONFIM-SILVA et al, 2011).…”

Section: Performance Of Carrot Culturementioning

confidence: 99%

Agro-Economic Indicators for Carrot Under Green Manure in a Semi-Arid Environment

et al. 2021

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Green manuring is an important management strategy in tuberous vegetable production systems, since it improves the physical, chemical and biological properties of the soil and, consequently, increases in crop productivity and ecosystem balance. The objective of this work was to evaluate the agro-economic efficiency of carrot cultivation as a function of Calotropis procera biomass amounts incorporated into the soil during two growing seasons in a semiarid environment. The experiments were conducted in an experimental design of randomized complete blocks, with four treatments and five replications. The treatments consisted of four C. procera biomass amounts (20, 35, 50 and 65 t ha-1) incorporated into the soil. In each experiment, one plot with carrot without fertilization (control) was planted, for the purpose of comparison. The characteristics evaluated in the carrot were productivities of total and commercial roots, classified productivity of roots and production economic indicators. The maximum productivity of carrot roots of 35.90 t ha-1 was possible with the incorporation of 47.60 t ha-1 of C. procera biomass into the soil. The maximum net income of R$ 33.744,07 ha-1 in the cultivation of this vegetable it was achieved with the addition of the C. procera biomass amount to the soil of 42.81 t ha-1. The return rates obtained for the carrot cultivation in these optimized quantities were 1.53 and 1.28, respectively, of those achieved in the control treatment (without fertilization).

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Influência de calcário e fósforo no desenvolvimento e produção de variedades de maracujazeiro-amarelo

Cited by 8 publications

References 12 publications

Aproveitamento de escória de siderurgia em substratos alternativos para produção de mudas de pimenteira Dedo-de-moça

Aproveitamento de escória de siderurgia em substratos alternativos para produção de mudas de pimenteira Dedo-de-moça

Yield and physical characterization of Passiflora cincinnata in the Brazilian Savanna

Agro-Economic Indicators for Carrot Under Green Manure in a Semi-Arid Environment

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