Major element uptake by snap bean grown in nutrient culture with varying nitrogen solution treatments

Abstract

Snap bean (Phaseoius vulgaris L.) showed an increasing preference for NO₃ with increasing total N and equal ratio of NO₃ to NH₄ when grown in nutrient culture. The percent increase in NO₃ uptake over NH4 from solution was about the same as the increase in percent K content found in the plants at harvest. Peak periods of NO₃ and NH₄ uptake were observed, similar to what has been found for the other vegetable legumes.

Key words:

• Ammonium/nitrate
• hydroponics
• plant nutrition

Notes

Graduate student, Professor and Associate Professor, respectively.