Fertilization and Plant Population Density Effects on the Productivity of Opuntia Ficus-Indica in Northeast Brazil

Santos, Mércia Virgínia Ferreira dos; Júnior, José Carlos Batista Dubeux; Melo, J. N. de; Santos, Dos; Farias, Iderval; Lira, Marcelo Abdon

doi:10.17660/actahortic.2006.728.26

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“…Santos et al (2006) evaluated clone IPA-20 in Caruaru with the same plant densities tested in this research. They found greater productivity with the greatest plant density for these two biennial crops.…”

Section: Figure 2 Productivity Ofmentioning

confidence: 99%

Productivity and nutrient concentration in spineless cactus under different fertilizations and plant densities

Souza

Santos

Júnior

et al. 2017

Agraria

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The objective was to evaluate the productivity and nutrient concentration in spineless cactus 'Miúda' (Nopalea cochenillifera Salm Dyck) under levels of nitrogen (N) fertilization (0, 150, 450 and , nitrogen fertilization did not affect productivity, however, there was a linear increase in plots with 40,000 ha -1 plants. The plant N concentration increased with nitrogen fertilization and ranged from 7.3 to 9.9 g kg -1. The plant phosphorus (P) concentration was influenced by the interaction between all the factors evaluated and reduced until estimated fertilization of 322 kg N ha -1 in plots with 40,000 plants ha -1 and 150 kg P ha -1 and only in São Bento do Una, with P concentration of 1.19 g kg -1. Nitrogen fertilization increased N concentration in cladodes and productivity when using high plant density. The increase in planting density increases productivity and reduces the concentration of most nutrients, except sulphur (S). , a adubação nitrogenada não causou efeito na produtividade, entretanto, houve aumento linear em parcelas com 40.000 plantas ha -1 . A concentração de N na planta aumentou com adubação nitrogenada e variou entre 7,3 e 9,9 g kg -1. A concentração de fósforo (P) na planta foi influenciada pela interação entre todos os fatores avaliados e reduziu até a adubação de 322 kg N ha -1 em parcelas com 40.000 plantas ha -1 e 150 kg P ha -1 e apenas em São Bento, com concentração de P de 1,19 g kg -1. A adubação nitrogenada aumenta a concentração de N nos cladódios e eleva a produtividade quando se utiliza alta densidade de plantas. O aumento da densidade de plantio aumenta a produtividade e reduz a concentração da maioria dos nutrientes, exceto enxofre (S).

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Section: Figure 2 Productivity Ofmentioning

confidence: 99%