Trees Lose Their Leaves Later in Agroforestry Systems

Ivanov, Marlete Moreira Mendes; Lacerda, Claudivan Feitosa de; Oliveira, Teógenes Senna de

doi:10.22161/ijeab/2.2.38

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“…The approach of the woody component can also promote competition for water, due to the higher water demand of trees. Ivanov et al (2017) compared trees from an agroforestry system with trees from a secondary forest in Caatinga, reported that the higher density of trees results in less water availability in the soil. Thus, in the east and west positions evaluated in this study, greater wilting was observed in the grown cactus pears, mainly in N. cochenillifera when subjected to conditions of moderate water stress.…”

Section: Discussionmentioning

confidence: 99%

Morphological characteristics and yield of Opuntia stricta and Nopalea cochenillifera in integrated crop systems with caatinga trees

Neto¹,

Silva²,

Maranhão³

et al. 2022

Agroforest Syst

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The objective was to evaluate the structural and production characteristics of Opuntia stricta (Cactus pear Orelha de Elefante Mexicana) and Nopalea cochenillifera (Cactus pear Miúda) under different arrangements of caatinga trees. The study was carried out at the Teaching, Research and Extension Unit (UEPE) of the Federal Institute of Education, Science and Technology of Ceará (IFCE), Limoeiro do Norte Campus, state of Ceará. The experimental area consisted of nine systems, arranged in strips of Caatinga trees (woody component), with dimensions of 6.0 x 100.0 m, directed in the north-south direction. Among the tree strips, Opuntia stricta and Nopalea cochenillifera were implanted in plots, according to the following treatments: cactus pear grown under 46.15% woody cover (ICS46; 1,418 trees per hectare), cactus pear grown under 30.00% woody cover (ICS30; 925 trees per hectare) and cactus pear grown under 17.64% woody cover (ICS18; 524 trees per hectare). The experimental design was completely randomized, in a split-plot arrangement. Mean canopy height (H), number of cladodes per linear meter (NC) and total forage biomass (TFB) were evaluated, considering the east, center and west positions. The lowest H and NC was found for Nopalea cochenillifera in the east position. Nopalea cochenillifera and Opuntia stricta cultivated in system ICS46 had the lowest TFB in the center position. The silvopastoral systems ICS30 and ICS18 can be adopted without negatively affecting the structural and productive characteristics of cactus pears Opuntia stricta and Nopalea cochenillifera.

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Section: Discussionmentioning

confidence: 99%