Nutritional diagnosis and yield of sugarcane varieties in Urtisols/ Diagnose nutricional de variedades de cana-de-acucar em argissolos

Leaf diagnosis is one of the methods used to evaluate the demand of fertilizers in sugarcane, thus contributing for a better fertilizer management. The objective of this study was to evaluate the nutritional status of sugarcane varieties through the leaf analysis and mensuration of macro and micronu...

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Veröffentlicht in:Revista brasileira de engenharia agrícola e ambiental 2014-11, Vol.18 (11), p.1102
Hauptverfasser: Filho, Gilson Moura, de Albuquerque, Abel W, Moura, Adriano B, dos Santos, Alda C.I, Filho, Manoel dos S. Oliveira, da Silva, Leila C
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Zusammenfassung:Leaf diagnosis is one of the methods used to evaluate the demand of fertilizers in sugarcane, thus contributing for a better fertilizer management. The objective of this study was to evaluate the nutritional status of sugarcane varieties through the leaf analysis and mensuration of macro and micronutrients. The following sugarcane varieties were studied: RB92579, RB867515, SP81-3250, VAT90-212, VAT90-61, SP83-2847, RB863129, RB931011, RB931566 and RB855113, on two types of Urtisols: Dystrocohesive Yellow Argisol (PAdx1) and Dystrocohesive Abruptic Yellow Argisol (PAdx2) at Cansancao de Sinimbu Plant, Alagoas, Brazil. The experimental design was a randomized block design, arranged in a 2 x 10 factorial, consisting of ten varieties and four repetitions for each soil, where the following nutrients were evaluated: N, P, K, Ca, Mg, S, Zn, Fe, Mn, Cu and B. The PAdx2 was the soil that provided the highest amount of nutrients for plants (N, P, K, Ca, Mg, S, Zn, Fe, Mn, Cu and B). The SP8132-50 variety showed the best performance regarding the concentration of nutrient in leaf (K, S, Fe, Mn and Cu), followed by RB931011, VAT90-61 and RB867515. Key words: nutrients leaf analysis nutritional status A diagnose foliar e um dos metodos mais utilizados para se avaliar a demanda de nutrientes na cultura da cana-deacucar, contribuindo para um manejo melhor de fertilizantes. Objetivou-se avaliar o estado nutricional de variedades de cana-de-acucar atraves da analise foliar e a mensuracao dos teores foliares de macro e micronutrientes. Foram avaliadas as seguintes variedades: RB92579, RB867515, SP81-3250, VAT90-212, VAT90-61, SP83-2847, RB863129, RB931011, RB931566 e RB855113, em dois tipos de solo: Argisssolo Amarelo Distrocoeso Fragipanico (PAdx1) e Argisssolo Amarelo Distrocoeso Abruptico Fragipanico (PAdx2) na Usina Cansancao de Sinimbu, Jequia da Praia-AL. O delineamento foi o de blocos casualizados arranjado em um fatorial de 2 x 10 consistindo de 10 variedades e quatro repeticoes para cada solo em estudo, quando foram avaliados os seguintes nutrientes: N, P, K, Ca, Mg, S, Zn, Fe, Mn, Cu e B. O PAdx.sub.2 foi o solo que disponibilizou, as plantas, maior quantidade de nutrientes em relacao aos nutrientes P, Ca, Mg, Zn e Fe. A variedade SP81-3250 apresentou o melhor desempenho quanto ao teor foliar de nutrientes (K, S, Fe, Mn e Cu) seguida pela RB931011, VAT90-61 e RB867515. Palavras-chave: nutrientes analise foliar estado nutricional
ISSN:1415-4366
DOI:10.1590/1807-1929/agriambi.v18n11p1102-1109