Abstract:

To guide the cultivation of Zhaoyuan Tieba melon seedlings, this paper studied the effects of different organic fertilizer application rates on the seedling growth of Tieba melon. We adopted the method of plug-seedling technology, and set up different levels of organic fertilizer, which were 10, 15, 20 and 25 kg/m³ and control group. The results showed that the appropriate organic fertilizer application rate had a significantly positive effect on the growth of Tieba melon seedlings. With the increase of organic fertilizer application rate, the plant height, stem diameter, biomass and seedling strength index of the seedlings increased first and then decreased. When organic fertilizer application rate was 15 kg/m³, the stem diameter, biomass and seedling strength index reached the maximum. When organic fertilizer application rate was 20 kg/m³, the plant height reached the maximum. Comprehensive analysis determined that the appropriate organic fertilizer application rate for seedlings of Zhaoyuan Tieba melon was 15-20 kg/m³. The study could provide a basis for future research on Zhaoyuan Tieba melon seedlings.

Key words: organic fertilizer, application rate, Zhaoyuan Tieba melon, seedling, growth