Abstract:

In order to screening mushroom compost instead of peat on substrate formula, PT1 treatment (peat︰mushroom compost = 1︰0) was used as control, study on different mushroom compost proportion of the cultivation of dynamic change and substrate nitrogen (N) tomato seedlings the nutrition status. Results show that PT2 treatment (peat︰mushroom compost = 1︰1) for the cultivation of N content of control substrate for 1.1 times, N uptake 1.2 times, biomass 1.5 times, plant N and chlorophyll content are close to control; PT6 treatment (peat︰mushroom compost = 2︰1) N uptake ，biomass N content are compared to control of 2 and 2.5 times respectively. substrates, plant and chlorophyll content N content are close to control; PT9 treatment (peat: mushroom compost =0:1) of substrate N content, plant N, N absorption, biomass and chlorophyll content is much lower than control. PT2 and PT6 treatment can handle the mushroom compost instead of peat as the substrate formula, and PT9 treatment is not suitable.