Title: Effects of ratio of elongation to booting nitrogen on N nutrition, grain yield and quality in medium-gluten wheat
Abstract: Abstrcat With medium-gluten wheat Yangmai 10 as the tested variety, the research focused on the effects of elongation and booting nitrogen on N uptake and utilization efficiency, grain yield and quality. The results indicated that higher proportion of elongation nitrogen increased grain yield, lowered protein content and gluten content. Nitrogen agronomic efficiency (NAE), nitrogen physiological efficiency (NPE), nitrogen harvest index (NHI) were relatively low. Nitrogen production efficiency (NUEg), nitrogen utilization efficiency (NUGE), nitrogen uptake efficiency (NUEA) and nitrogen utilization ratio (NUR) were all at medium level. NUEg, NUEA, and NUR reached their highest level and NUEg was the lowest when the same amount elongation nitrogen and booting nitrogen were used. The suitable ratio of basal∶elongation∶booting N fertilizer application was 2∶1 ∶1 with 240 kg(N)·hm~(-2)() in soil with medium fertility, but the suitable ratio of basal∶tillering∶elongation∶booting N fertilizer application was 10∶2∶1~2∶6~7 with (150 kg(N)·hm~(-2))() in soil with high fertility.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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Cited By Count: 1
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