ISHS Acta Horticulturae 72: Symposium on the Timing of Field vegetable Production
THE INFLUENCE OF ROW SPACING AND PLANT DENSITY IN ROWS ON THE YIELD OF CARROTS AND ROOT QUALITY |
| Authors: | A. Kepka, L. Umiecka, H. Fajkowska |
| Abstract:
Between 1969 and 1975 field experiments on the effects of different plant density and spacing patterns of carrots on yield were carried out. In small-scale field experiments (1969–1972) the following row spacings were compared: 10, 15, 22, 5, 30 and 45 cm, with 2, 3, 4 and 6 cm within the rows. In addition, 30 and 45 cm row spacings were compared with twin rows or a band 8 cm wide. The density of plants/m2 ranged from 37 up to 500. Total and ware (roots 2 - 6 cm diam) yields of carrots increased as the distance between rows decreased from 45 to 10 cm and as the distance between plants in row was decreased from 6 to 2 cm. A population of 111 or 222 plant/m2, gave the highest and most uniform ware yield, and the highest yields of roots suitable for pre-packing (2 – 4 cm). Greening of the crowns was least when carrots were sown in bands 45 cm apart. In large-scale field experiments (1970–1972) band sowing systems (30 and 45 cm apart) gave more uniform crops of carrots and a higher proportion of roots suitable for prepacking (2 - 4 cm), than a row system of culture (15, 30 and 45 cm apart). Several field trials conducted in 1973–1975 in different regions of Poland on commercial holdings confirmed these results. | |
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