Abstract:

Abstract: To determinate the effective storage period of soil amendment (SA, developed by the laboratory of Entomology and Nematology-LEN) on cucumber growth promotion and on root-knot nematode (Meloidogyn incognita) suppression, the evaluation was carried out in laboratory related to cucumber (Qianqiu 1 variety) leaf total area, seedling weight above the ground, number of fibrous root and total length and the number of root-knot/10cm root length. The results demonstrated that comparing with the nematode control, stored 14 weeks’ SA could increase 113.12% cucumber leaf area, 30.19% seedling weight after 20 days’ growth, which were significant higher than those of SA stored for 1, 16, 37and 42 weeks. The 14-week SA could also increase 178.15% number of fibrous roots. There was no significant difference with that of 1 week and 42-week SA. After 1 or 14 week storage, SA could increase more than 200% the total length of fibrous roots and decrease 72.80% the number of root knots. There was no significant difference among the SA in different storage period. In brief, 14-week storage was the best period for SA store.