Effects of different N:K ratios and NPK levels on sweet potato [Philippines]

Generally, plants that received NPK fertilizers had better stand than those that did not receive either N or K. However, nitrogen had greater influence than potassium on the vegetative growth of the plant. Root formation and yield were significantly improved as the amount of potassium was increased...

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Bibliographic Details
Published inAnnals of tropical research Vol. 8; no. 2
Main Authors Sarong, L.Q, Quirol, B.F, Villanueva, M.R. (Visayas State Coll. of Agriculture, Baybay, Leyte (Philippines). Dept. of Agronomy)
Format Journal Article
LanguageEnglish
Published 1986
Subjects
AEIPOMOEA BATATAS
ENGRAIS NK
ENGRAIS NPK
FERTILIZANTES NK
FERTILIZANTES NPK
FILIPINAS
IPOMOEA BATATAS
PHILIPPINES
RENDEMENT DES CULT
RENDIMIENTO DE CULTIVOS
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Summary:Generally, plants that received NPK fertilizers had better stand than those that did not receive either N or K. However, nitrogen had greater influence than potassium on the vegetative growth of the plant. Root formation and yield were significantly improved as the amount of potassium was increased up to 90 kg/ha with nitrogen at 30 kg/ha. In this treatment where the N:K ratio was 1:3 the highest root yield of 6.52 t/ha was obtained. Altering the N:K ratio from 1:1 to 3:2 led to maximum leaf development and vine elongation while reducing the ratio from 3:2 to 1:3 favored storage root formation
Bibliography:871057388
F04
ISSN:0116-0710