In:
Agrosystems, Geosciences & Environment, Wiley, Vol. 3, No. 1 ( 2020-01)
Kurzfassung:
Undesirable growth of potato ( Solanum tuberosum L.) crop under an excessive N fertilizer application is the main obstacle presently. This research was conducted to investigate the response of different potato cultivars; Russet Burbank, Shepody, and Superior, and its qualitative characteristics under a series of N rates. Six rates of N fertilization (0–280 kg ha −1 ) were applied on 11 sites in a randomized complete block design, with four replications. Sites with ≥30 g kg −1 of soil organic matter (OM) produced total tuber yield, marketable yield, and tuber weight per plant 39.5, 45.2, and 54.9%, respectively, higher than sites with ≤30 g kg −1 of OM. Tubers specific gravity increased by 0.18% in the sites with ≥30 g kg −1 of OM. The total tuber yield for the three cultivars was maximized at 168 kg N ha −1 . Marketable specific gravity, starch, and dry matter content were achieved by applying 168 and 112 kg N ha −1 at ≤30 and ≥30 g kg −1 of OM sites, respectively. Russet Burbank produced a higher yield than Shepody and Superior cultivars significantly, but there was no significant difference among them regarding specific gravity. Excessive N application ( 〉 168 kg ha −1 ) decreased potato tuber production and quality.
Materialart:
Online-Ressource
ISSN:
2639-6696
,
2639-6696
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2020
ZDB Id:
2974531-7
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