Research Article
Analysis of Essential Elements for Plants Growth Using Instrumental Neutron Activation Analysis
Table 7
Iron plant-analysis interpretations for common Guinea Savannah crops [
34].
| | Crop | Deficient | Low | Sufficient | High |
| | Soybeans | <30 ppm | 30–50 ppm | 51–350 ppm | >350 ppm | | Maize | <10 ppm | 10–50 ppm | 51–250 ppm | >250 ppm | | Potato | — | <11 ppm | 11–300 ppm | >300 ppm | | Groundnut | <10 ppm | 10–50 ppm | 51–250 ppm | >250 ppm | | Cassava | <20 ppm | 20–30 ppm | 31–250 ppm | >250 ppm |
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