Irrigation depths and nitrogen levels for forage oat (Avena sativa L.) production
DOI:
https://doi.org/10.1590/S0103-90161995000300027Keywords:
suplemental irrigation, nitrogen fertilization, optimal levels, net returnAbstract
This study was conducted to determine the effects of supplemental irrigation and nitrogen fertilization on forage oat (Avena sativa, L.) productivity, variety UPF7. The experiment was a split-plot randomized block design with four replications. The experimental unit consisted of combinations of four irrigation depths applied when cumulative Classe A pan evaporation (ECA) approximately reached 30 mm, (I = 0%, I = 50%, I = 100% and I = 150% of ECA), and four nitrogen levels (N = O, N = 80, N = 160 e N = 240 kg.ha-1). The total maximum productivity of dry matter (6,9 t.ha-1) was obtained for the water depth of 319,2 mm and 152,4 kg.ha-1 of nitrogen. For the considered prices, the water and nitrogen levels that induced the maximum net income were 310 mm and 120 kg.ha-1, respectively, reaching a maximum net return of R$ 897.ha-1.Downloads
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Published
1995-12-01
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All content of the journal, except where identified, is licensed under a Creative Common attribution-type BY-NC.How to Cite
Irrigation depths and nitrogen levels for forage oat (Avena sativa L.) production . (1995). Scientia Agricola, 52(3), 578-586. https://doi.org/10.1590/S0103-90161995000300027