GENERAL AND QUANTITATIVE ASPECTS OF NITROGEN FERTILIZER USE IN THE CULTIVATION OF BRASSICA VEGETABLES

In the cultivation of Brassica vegetable crops in the Netherlands considerable amounts of nitrogen (N) fertilizer are usually applied to produce optimum yields of good quality.
Recommendations for N fertilizer are comparatively high.
Brassica vegetable crops take up large amounts of N. The crops have low harvest indices and substantial amounts of N are left in crop residues in the field after harvest.
Compared to cabbage and Brussels sprouts, broccoli and cauliflower will leave more N in the soil at harvest.
Data from both Dutch and other sources are presented to quantify the amounts of N involved.
The study of the growth and development of the root system of Brassica vegetables in relation to N uptake has received insufficient attention.

Workshop on Ecological Aspects of Vegetable Fertilization in Integrated Crop Production in the Field

A.P. Everaarts

Brassica vegetables, nitrogen fertilizer recommendation, nitrogen uptake, apparent fertilizer recovery, crop residues, soil mineral nitrogen, roots, review

https://doi.org/10.17660/ActaHortic.1993.339.13