publication . Article . 2017

Produtividade e eficiência nutricional do milho em resposta a doses e parcelamentos da adubação nitrogenada

Amado,Telmo Jorge Carneiro; Villalba,Enrique Oswin Hahn; Bortolotto,Rafael Pivotto; Nora,Douglas Dalla; Bragagnolo,Jardes; León,Enrique Asterio Benítez;
Open Access English
  • Published: 01 Aug 2017 Journal: Revista Ceres (issn: 2177-3491, Copyright policy)
  • Publisher: Universidade Federal De Viçosa
Abstract
ABSTRACT Despite its relevance, nitrogen is poorly utilized by the plants when improperly applied. Thus, the objective of this study was to evaluate the yield and nitrogen use efficiency (NUE) in corn in response to doses and split application of nitrogen fertilization. The experimental design was a randomized block design, with three replications. Doses of nitrogen of 0, 30, 60 and 180 kg ha-1 were applied at sowing in order to create different nutritional status of corn plants and to obtain different values of Normalized Difference Vegetation Index (NDVI) measured with “Greenseeker®” optical sensor. The subplots with nitrogen doses in topdressing of 0, 30, 60 ...
Subjects
free text keywords: nitrogênio, sensor optico, GreenSeeker®, nitrogen, optical sensing, Zea mays L., Agriculture (General), S1-972, Biotechnology, TP248.13-248.65, Agronomy, Biology, Nitrogen fertilization
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publication . Article . 2017

Produtividade e eficiência nutricional do milho em resposta a doses e parcelamentos da adubação nitrogenada

Amado,Telmo Jorge Carneiro; Villalba,Enrique Oswin Hahn; Bortolotto,Rafael Pivotto; Nora,Douglas Dalla; Bragagnolo,Jardes; León,Enrique Asterio Benítez;