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Nitrogen nutrition, yield and quality of spinach

✍ Scribed by Elia, A; Santamaria, P; Serio, F

Book ID
101223937
Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
193 KB
Volume
76
Category
Article
ISSN
0022-5142

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✦ Synopsis

When grown in solution culture spinach plants conÐrmed the preference toward nutrition and showed heavy toxicity to In open Ðeld NO 3 ~NH 4 `. condition the highest yield was achieved with the ammonium sulphate in Bari (autumnÈwinter cycleÈ110 days) and with calcium nitrate in Policoro (winterÈ spring cycleÈ64 days)

. By increasing N level, yield, nitrates and oxalates leaf content increased. Oxalate content was not a †ected by nitrogen form. Remarkable di †erences were observed between leaf petiole and blade in nitrate (4062 vs 925 mg kg~1 of fresh mass) and oxalate (1051 vs 6999 mg kg~1 of fresh mass).

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## Abstract Eight maize (__Zea mays__ L) hybrids were grown under five N levels with or without the nitrification inhibitor, nitrapyrin (2‐chloro‐[6‐trichloro‐methyl] pyridine), to evaluate N interactions relative to yield performance, N use efficiency, grain protein concentration, and kernel textu