2018
DOI: 10.15809/irriga.2016v21n1p74-89
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Crescimento E Produção De Repolho Sob Diferentes Adubações Na Presença E Ausência De Cobertura Morta Em Agricultura Familiar

Abstract: CRESCIMENTO E PRODUÇÃO DE REPOLHO SOB DIFERENTES ADUBAÇÕES NA PRESENÇA E AUSÊNCIA DE COBERTURA MORTA EM AGRICULTURA FAMILIAR EDUARDO SILVA DOS SANTOS1; ABELARDO ANTÔNIO DE ASSUNÇÃO MONTENEGRO2; ELVIRA MARIA REGIS PEDROSA2, ÊNIO FARIAS DE FRANÇA E SILVA2 1Doutor em Engenharia Agrícola, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, CEP: 52171-900 – Recife, PE. silvaufrpe@yahoo.com.br2Departamento de Engenharia Agrícola, Universidade Federal Rural de Pernambuco, Rua Dom Ma… Show more

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Cited by 6 publications
(4 citation statements)
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“…In the soil covered with vegetal remains, the FC × B; FC × M, and FC × S intercropping systems provided higher values for this variable, whereas in the uncovered soil the highest results were obtained with the FC × B, FC × M, and FC × FW intercropping systems (Figure 3). For Santos et al (2016), the use of mulch provided good The higher stomatal conductance (g s ) of the plants cultivated in the mulched soil ( Figure 1A) contributed directly to these results since the increment in the C i values is accompanied by increases in the g s ; therefore, the stomatal limitation would be the main factor for the restriction of the photosynthetic performance, considering that the greater is the stomatal opening, the greater will be the CO 2 partial pressure in the intercellular spaces, favoring the diffusion of CO 2 for the substomatal cavity, and thus increasing the substrate for the activity of Ribulose 1,5 biphosphate carboxylase/oxygenase (Rubisco) (Silva et al, 2015;Souza et al, 2016). The instantaneous water-use efficiency ( Figure 4B) by the forage cactus was favored (p < 0.05) when of the intercropping with buffelgrass and forage watermelon (1.33 and 1.10 µmol m -2 s -1 /mmol of H 2 O m -2 s -1 , respectively).…”
Section: Resultsmentioning
confidence: 99%
“…In the soil covered with vegetal remains, the FC × B; FC × M, and FC × S intercropping systems provided higher values for this variable, whereas in the uncovered soil the highest results were obtained with the FC × B, FC × M, and FC × FW intercropping systems (Figure 3). For Santos et al (2016), the use of mulch provided good The higher stomatal conductance (g s ) of the plants cultivated in the mulched soil ( Figure 1A) contributed directly to these results since the increment in the C i values is accompanied by increases in the g s ; therefore, the stomatal limitation would be the main factor for the restriction of the photosynthetic performance, considering that the greater is the stomatal opening, the greater will be the CO 2 partial pressure in the intercellular spaces, favoring the diffusion of CO 2 for the substomatal cavity, and thus increasing the substrate for the activity of Ribulose 1,5 biphosphate carboxylase/oxygenase (Rubisco) (Silva et al, 2015;Souza et al, 2016). The instantaneous water-use efficiency ( Figure 4B) by the forage cactus was favored (p < 0.05) when of the intercropping with buffelgrass and forage watermelon (1.33 and 1.10 µmol m -2 s -1 /mmol of H 2 O m -2 s -1 , respectively).…”
Section: Resultsmentioning
confidence: 99%
“…possivelmente, reduzindo os teores de C e MO, assim como, a atividade biológica, principalmente em períodos de maior radiação solar e temperatura (Primavesi, 2012;Alves et al, 2016;Santos et al, 2016;Fernandes et al, 2016;Primavesi, 2016). A disponibilidade adequada de cálcio (Ca) pode melhorar as condições de crescimento radicular, estimular a atividade microbiana, auxiliar na disponibilidade do molibdênio (Mo) e na absorção de outros nutrientes, como magnésio (Mg), que atua como componente da molécula de clorofila, além de influenciar no movimento de distribuição dos carboidratos das folhas para outras partes da planta, e estimular a captação e transporte do fósforo (P) na planta.…”
Section: Ctc S B H Alunclassified
“…) and red cabbage (Brassica oleracea L. var. captain f. rubra), both have rounded and waxy leaves, with the formation of a compact head in which they occupy a cultivated area of over 35,000 ha and a production of over 417,000 ton (Santos et al, 2016;Melo et al, 2019).…”
Section: Introductionmentioning
confidence: 99%