Think Different First Time Grow

I had to gone abroad for 2 weeks for job, so i setted up auto watering system and left. Unfortunately, when i back i saw my dear plant A didn't grow. I dont know what is happened about week 4 and 5. I guess she has some root problems. I feel so sad about her. However Plant B did great job. I started to give nutrients which is noname. It says, use 30mL nutrients for 1L clean water. And use each 15 days 200ml for plant. And the next day after giving the nutrients to plant should give water. It conteins some stuff as like that; Nitrogen (N) = 5% Water Soluble Phosphorpentaoxide (P2O5) = 5% Water Soluble Potassium (K2O) = 5% Water Soluble Magnesium Oxide (MgO) = 2% Water Soluble Boron (B) = 0.0.5% Water Soluble Copper (Cu) = 0.1% Water Soluble Iron (Fe) = 0.5% Water Soluble Manganese (Mn) = 0.1% Water Soluble Zinc (Zn) = 0.1%