Fig. 4.

Growth degree of Fusarium oxysporum f. sp. spinaciae based on an estimation of the extension length of the colony for the cultivation of spinach in Aichi (A, B) and Ibaraki (C, D) soils. Values show the mean of medians at dilutions from 10⁻¹ to 10⁻⁶ with SE before (A, C) (n=3) and after crop cultivation (B, D) (n=4). NF, unfertilized; CF, chemical fertilizer; CF+FYM, chemical fertilizer and 40 t ha⁻¹ y⁻¹ farmyard manure; CRC, chemical fertilizer and 40 t ha⁻¹ y⁻¹ coffee residue compost; FYM, 400 t ha⁻¹ y⁻¹ farmyard manure; Cont, compound inorganic fertilizers; RSM, 940–4,700 kg ha⁻¹ rapeseed meal; FM, 710–3,600 kg ha⁻¹ fish meal; SBM, 1,300–6,300 kg ha⁻¹ steamed bone meal; Mix, 930–4,600 kg ha⁻¹ mixture of rapeseed meal, fish meal, and steamed bone meal. * indicates a significant difference from NF or Cont at P<0.05.