Phosphorus Nutrition of Italian Ryegrass Relative to Growth, Moisture Content, and Mineral Constituents
1965
Hylton, L. O. | Ulrich, A. | Cornelius, D. R. | Okhi, K.
SynopsisPlant growth and the absorption of P by Italian ryegrass from nutrient solution was affected by P supply, whereas the distribution and accumulation of P within the ryegrass was largely determined by the kind of, and age of, tissue sampled. Blade 1, the youngest blade that was fully open and had a ligule, and H₂PO₄-P were selected, from 6 plant parts sampled and 2 forms of P determined, as the best combination to diagnose the P status of Italian ryegrass. About 750 ppm of H₂PO₄-P in blade 1 tissue was tentatively set as the critical concentration for growth of the ryegrass.
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