Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (8): 1805-1813.DOI: 10.3969/j.issn.1004-1524.20221274

• Horticultural Science • Previous Articles     Next Articles

Effects of compound substrate with residues of Solanaceous vegetables on cucumber seedling

FU Hongfei(), GUO Saisai, ZHENG Jirong   

  1. Institute of Vegetables, Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China
  • Received:2022-09-01 Online:2023-08-25 Published:2023-08-29

Abstract:

To better address the disposal problem of vegetable residues of Solanaceae, 4 residue pile fermentation treatments were set up using vegetable residues of Solanaceae as raw materials, chicken manure, and fermentation bacterial agents as additives. The fermented residues were then blended with commercial seedling substrates to produce mixed substrates. The effects of the mixed substrates on cucumber seed germination rate, seedling morphology, chlorophyll content, seedling biomass, and seedling root growth indices were studied. The correlation analysis was also conducted on seedling biomass, root indices, and other factors. The results showed that when Solanaceae vegetable residues were fermented without additives and blended with commercial seedling substrates in a ratio of 1∶3, the volume and surface area of cucumber seedling root increased by 0.30 cm3 per plant and 8.66 cm2 per plant, respectively. The growth rate of dry matter accumulation (G value) of the cucumber seedlings was significantly (P<0.01) positively correlated with fresh weight, dry weight, above ground dry weight, underground dry weight per plant and seedling index. The seedling index was significantly (P<0.01) positively correlated with fresh weight, dry weight, above ground dry weight and underground dry weight per plant. The dry matter content was significantly (P<0.01) negatively correlated with fresh weight per plant. In addition, the number of root tips of cucumber seedlings was significantly(P<0.01) positively correlated with root length, root volume, and root surface area. Root length was significantly (P<0.01) positively correlated with root volume and root surface area. Root diameter was negatively correlated with the number of root tips and root length. Therefore, when Solanaceae vegetable residues were fermented without additives and blended with commercial seedling substrates in a ratio of 1∶3, the resulting mixed substrates were suitable for cucumber seedling cultivation.

Key words: vegetable residues of Solanaceous, compound substrate, seedling, cucumber, correlation analysis

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