EVALUATION OF NUTRIENT STATUS OF ASPARAGUS BY LEAF AND ROOT ANALYSES

1. The experiments showed that the nutrient status of asparagus can only be evaluated based on analysis of the nutrient contents of the roots, but not an analysis of above-ground plant parts.
2. There ist no correlation between the nutrient content in the soil-layer 0–30 cm (mg/100 g soil) and the nutrient concentration of the roots (in percent of dry matter), whereas there is a significant correlation for P, K, Ca and Mg in the soil-layer 30–60 cm.
3. The ratios and interrelations of nutrients in the roots provide information regarding soil-nutrient contents and fertilization practises.

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