Influences of biodynamic and conventional farming systems on quality of potato (Solanum tuberosum l.) crops: Results from multivariate analyses of two long-term field trials in sweden

Abstract

The aim of this paper was to present results from two long term field experiments comparing potato samples from conventional farming systems with samples from biodynamic farming systems. The principal component analyses (PCA), consistently exhibited differences between potato samples from the two farming systems. According to the PCA, potato samples treated with inorganic fertilizers exhibited a variation positively related to amounts of crude protein, yield, cooking or tissue discoloration and extract decomposition. Potato samples treated according to biodynamic principles, with composted cow manure, were more positively related to traits such as Quality-and EAA-indices, dry matter content, taste quality, relative proportion of pure protein and biocrystallization value. Distinctions between years, crop rotation and cultivars used were sometimes more significant than differences between manuring systems. Grown after barley the potato crop exhibited better quality traits compared to when grown after ley in both the conventional and the biodynamic farming system.

Keywords

Biodynamic agriculture; Conventional agriculture; Potato; Principal component analysis; Product quality

Published in

Foods
2015, volume: 4, number: 3, pages: 440-462
Publisher: MDPI AG

SLU Authors

• Kjellenberg, Lars

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Food Science
Agricultural Science

Publication identifier

• DOI: https://doi.org/10.3390/foods4030440

Permanent link to this page (URI)

https://res.slu.se/id/publ/132021