Gliricidia sepium and fertilization affect growth, nutrient status, and incidence of Hypsipyla grandella in a Cedrela odorata plantation
2019
Montero-Solís, Flor María | López-López, Miguel Ángel | Jiménez-Casas, Marcos | Cetina Alcala, Victor Manuel | Platas-Rosado, Diego Esteban | López-Collado, Catalino Jorge
Gliricidia sepium has the ability to recruit and release nutrients, increasing primary productivity of forest sites. There are no reports documenting intercroping of G. sepium and Cedrela odorata and few studies examining nutrient supply as strategies to decrease incidence of Hypsipyla grandella in C. odorata plantations. In this study, intercroping of G. sepium and C. odorata and fertilization with N and P was tested in order to examine the effects of such factors on growth, nutrient status, and incidence of H. grandella on C. odorata trees. Twelve treatments fourfold replicated and derived from a 3 × 2 × 2 set of factors were randomly established within the experimental site. During 12 months, growth and pest-incidence variables were measured quarterly and monthly, respectively. K and Mg were the most deficient nutrients in the experimental site. Interplanting three G. sepium trees per plot increased K and Mg availability, thus improving C. odorata nutrient status and minimizing incidence of the pest during the first year. N supply did not improve C. odorata growth nor did it affect the incidence of H. grandella. P promoted tree height.
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