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Table 7 Sufficiency ranges for nutrient content in wheat (flag leaves at flowering stage)

From: Soil fertility status and wheat nutrient content in Vertisol cropping systems of central highlands of Ethiopia

Nutrients

Sufficiency range

References

N (%)

3.6–4.5

[74]

P (%)

0.2–0.5

[76]

K (%)

1.5–3

[77]

Ca (%)

0.2–1

[76]

Mg (%)

0.15–0.5

[77]

Cu (mg kg−1)

4.5–15

[76]

Fe (mg kg−1)

30–200

[76]

Mn (mg kg−1)

20–150

[76]

Zn (mg kg−1)

18–70

[76]

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Agriculture & Food Security

ISSN: 2048-7010