The effect of different nitrogen forms on tobacco (Nicotiana tabacum L. K326) growth, water uptake and transpiration, nutrients uptake and distribution and circulation of potassium was studied. The effect of plant hormone combined with different nitrogen forms on tobacco growth and nutrients uptake was also explored at the same time.
Tobacco plants were treated by NO3-N, NH4+-N, NH4NO3 or NH4+ +6-BA seperately in one experiment, and NO3-N, NO3-N+ABA, NH4+-N or NH/-N+6-BA in the other....