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Colloquium Agrariae
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Colloquium Agrariae
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Colloquium Agrariae
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Colloquium Agrariae
Article . 2017
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SUBSTRATO E ADUBAÇÃO NITROGENADA NA PRODUÇÃO DE MUDAS DE MARACUJAZEIRO AMARELO EM CONDIÇÕES PROTEGIDAS

Authors: Rodrigo Takashi Maruki Miyake; José Eduardo Creste; Nobuyoshi Narita; Wellington Eduardo Xavier Guerra;

SUBSTRATO E ADUBAÇÃO NITROGENADA NA PRODUÇÃO DE MUDAS DE MARACUJAZEIRO AMARELO EM CONDIÇÕES PROTEGIDAS

Abstract

Atualmente, mudas de diversas fruteiras são produzidas no cultivo protegido, com o uso de substratos aliados a adubações. Há necessidade de substrato de fácil aquisição e que proporcione mudas de boa qualidade. Sendo assim, o objetivo deste trabalho foi avaliar diferentes substratos comerciais e doses de nitrogênio sobre o desenvolvimento de mudas de maracujazeiro em condições protegidas. Os tratamentos consistiram de três substratos comerciais (Bioplant®, Fibra de coco e Vivato®) e quatro doses de nitrogênio (0; 150; 300 e 600 mg dm-³ N). Após 120 dias, avaliou-se a altura de planta, número de folhas, peso da matéria seca de parte aérea (MSPA), raizes (MSR) e total (MST) e o teor de clorofila (SPAD). Na altura das plantas, a Fibra de Coco diferiu significativamente dos demais substratos. A altura máxima de 122 cm foi obtida na dose de 600 mg dm-³ de N. No número de folhas a Fibra de coco proporcionou a melhor resposta com média de 20 folhas, sendo superiores Bioplant® e Vivatto®. Na MSPA a Fibra de Coco e Bioplant® foram superiores em relação ao Vivatto®, e na avaliação de MST observou-se o acúmulo máximo de 19 g de matéria seca das mudas na dose de 600 mg dm-³ de N nas plantas desenvolvidas com Bioplant®. No teor de clorofila os melhores resultados foram obtidos no substrato Bioplant® com média de valores SPAD de 40, mas não houve diferença para a Fibra de coco.

Keywords

S, Agriculture (General), Nutrição mineral, Agriculture, cultivo Protegido, nitrogênio, Passiflora edulis Sims., S1-972

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Top 10%
Average
Average
gold