Residual Influence of Nitrogen, Phosphorus and Potassium Doses on Soil and Eucalyptus Nutrition in Coppice

Autor(es)

Inha Godoi, Natasha Mirella ^[1] ; Gazola, Rodolfo de Niro ^[2] ; Buzetti, Salatier ^[2] ; Jalal, Arshad ^[2] ; Celestrino, Thiago de Souza ^[2] ; da Silva Oliveira, Carlos Eduardo ^[1] ; Rodrigues Nogueira, Thiago Assis ^[2] ; Panosso, Alan Rodrigo ^[3] ; Minhoto Teixeira Filho, Marcelo Carvalho ^[2]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Fac Engn FEIS, Postgrad Program Agron, BR-15385000 Ilha Solteira, SP - Brazil

^[2] Sao Paulo State Univ UNESP, Ilha Solteira Fac Engn FEIS, Dept Plant Protect Rural Engn & Soils, BR-15385000 Ilha Solteira, SP - Brazil

^[3] Sao Paulo State Univ UNESP, Fac Agr & Vet Sci, Dept Engn & Exact Sci, BR-14884900 Jaboticabal, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FORESTS; v. 12, n. 10 OCT 2021.
• Citações Web of Science: 0

Resumo

The management of fertilizer is an important strategy for better nutrition and productivity of eucalyptus. Therefore, the objective of this research was to evaluate the isolated residual effect (carryover) of N, P and K fertilization on macro- and micronutrients in soil, leaf litter, leaf nutritional diagnosis and initial growth attributes of eucalyptus in a coppice system. Three experiments were carried out in a randomized block design with five replications. Experiment 1: four residual doses of N (0, 70, 105 and 140 kg ha(-1)) were applied as ammonium nitrate. Experiment 2: four residual doses of P2O5 (0, 40, 70 and 100 kg ha(-1)) were applied to plantations in furrows using triple superphosphate. Experiment 3: four residual K2O doses (0, 90, 135 and 180 kg ha(-1)) were applied as potassium chloride. The residual N doses did not influence leaf nutrient contents and initial growth of eucalyptus; however, increasing P residual doses increased soil P and Zn content, litter K content, decreased leaf Mg content, and increased initial growth (height and wood volume of eucalyptus). The residual K doses increased leaf litter K content and leaf Mn and Zn content but decreased leaf litter Ca, B and Fe and leaf Mg content. Residual potassium fertilization did not significantly influence the initial growth of eucalyptus in the Brazilian Cerrado.</p> (AU)

• Processo FAPESP: 20/11615-0 - Residual de doses e adubação com nitrogênio, fósforo e potássio no eucalipto cultivado em sistema talhadia no Cerrado
• Beneficiário: Natasha Mirella Inhã Godoi
• Modalidade de apoio: Bolsas no Brasil - Doutorado