The effect of nitrogen and the method of application on yield and quality of broccoli

Authors

  • A.P. Everaarts
  • P. De Willigen

DOI:

https://doi.org/10.18174/njas.v47i2.471

Keywords:

broccoli, <i>Brassica oleracea var.<i>italica</i>, soil mineral nitrogen, nitrogen fertilizer, fertilizer band placement, split application, quality, yield

Abstract

The effects of the rate and the method of N application on yield and quality of broccoli cv. Emperor were studied during 3 seasons at Andijk and Lelystad, Netherlands. Different amounts of N fertilizer were applied broadcast or band placed at planting. Band placement of fertilizer increased the yield in 5 out of 8 experiments. Application of N resulted in larger heads. No relationship was found between soil mineral N at planting and optimum N application because of the narrow range of soil mineral N at planting. Split application had no or a negative effect on yield and therefore is not recommended. For optimum yields a rate of 270 kg N/ha is recommended, minus the mineral N in the 0-60 cm soil layer, band placed at planting. For broadcast application 275 kg N minus the soil mineral N is recommended at planting, but yields will be lower than with band placement of fertilizer.

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Published

1999-11-01

Issue

Section

Papers