ISHS Acta Horticulturae 571: Workshop Towards and Ecologically Sound Fertilisation in Field Vegetable Production
NMIN TARGET VALUES FOR FIELD VEGETABLES |
| Authors: | C. Feller, M. Fink |
| Keywords: | nitrogen, fertilization, mineralization, decision support |
| Abstract:
The use of Nmin target values for predicting the nitrogen (N) fertilizer demands of vegetable crops is common practice in several European countries. However, Nmin target values, which in the past were derived mainly from fertilizer experiments, have not been determined for all commercially important crops. To solve this problem, this paper presents an algorithm and an up-to-data data set for calculating Nmin target values from: (1) the expected N uptake by the crop, (2) the necessary Nmin residue in the soil at harvest, and (3) the apparent net N mineralization. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
