Effects of Applied Quantity of Phosphorus Fertiliser on Phosphorus Content in Plant Tissues of Lucerne (Medicago sativa) and Seed Yield in North-western China

Phosphorus concentration in plant tissue can be a useful index of P deficiency in lucerne, P fertiliser recommendations and monitoring of effectiveness of current P fertiliser practices (Jacobsen & Surber, 1995). The objective of this study was to measure P concentration in different lucerne plant parts and seed yield in relation to P fertiliser application rates in order to improve recommendations for lucerne seed production.