Effects of different fertilizer on respiration rate and healthy index of pumpkin
Respiration rate and healthy index of pumpkin plug seedling in different fertilizer application standard was systemic studied by L_9(3~4)orthogonal experimental design.The results showed that the effect for pumpkin plug seedling's respiration rate and healthy index by nitrogen was significant.Respiration rate and healthy index went down after application of nitrogen fertilizer.Respiration rate and healthy index had a certain degree of reduction by phosphorus and potassium.Microelement fertilizer significantly increased root respiration rate,but no significant effect on healthy index of pumpkin plug seedling.
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万方数据
维普
