Effects of soil moisture stress on nutrient uptake by maize (Zea mays)
1979
Babalola, O. (Ibadan Univ., Ibadan (Nigeria)) | Lal, R. (IITT, Ibadan (Nigeria))
The effects of soil moisture treatments, -0.3 bar, -2.0 bar and -10.0 bar, maintained at 30 cm depth, and five reconstituted soil profiles, on the absorption of nutrients by maize plants were studied in a field lysimetric investigation. Ca and Mg in the earleaf significantly decreased, while earleaf N decreased and earleaf K increased with increase in soil moisture stress. Soil moisture stress significantly decreased Ca:P and Ca:Mn ratio. Manganese content was negatively correlated with grain yield and yield parameters. Grain N and lysine content showed significant increases with increasing moisture stress, while the concentration of tryptophane was affected
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