Sphagnum peat in the growing medium and nitrogen application influence asparagus growth
1990
Waters, L. Jr | Blanchette, B.L. | Burrows, R.L. | Bedford, D.
High levels of sphagnum peat in the growing medium promoted growth of asparagus (Asparagus officinalis L. cv. Viking 2K) in a greenhouse study. Application of NH4NO3 >1 g/pot (84 kg.ha-1 equivalent) was detrimental to root growth. High N rates and high organic matter levels decreased fibrous root development. Shoot dry weight was highly correlated with fleshy root number, root dry weight, and shoot vigor.
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