Effect of growing method and lettuce fertilization on changes of nitrate content in leaf

被引：2

作者：

Pavlovic, RM ^{[1
]}

Stevanovic, DR ^{[1
]}

Kresovic, MM ^{[1
]}

机构：

[1] Fac Agron, YU-32000 Cacak, Yugoslavia

来源：

FIRST BALKAN SYMPOSIUM ON VEGETABLES AND POTATOES, VOLS. I & II | 1997年 / 1卷 / 462期

关键词：

lettuce; N-fertilizer; yield; content of nitrates;

D O I：

10.17660/ActaHortic.1997.462.141

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The effect of different amounts of Ca-ammonium nitrates on yield and the accumulation of nitric nitrogen-NO3 was studied in open field and under greenhouse conditions, with special attention for the outer (green) and inner (light green) leaves. The results shows that the application of nitrogen (50 - 200 kg/ha) increased the lettuce yield and the nitric nitrogen content by 21-59% and 42-250% in relation to the control variant, for which 30 t/ha of manure was applied. The average content of the nitrates was markedly higher in the lettuce grown in the greenhouse and, for both growing methods, in the outer leaves.

引用

页码：885 / 889

页数：3

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