Hello mam,
what is media you have used in your polyhouse please specify other wise it is difficult to answer, if it is water media you can supply through water fertilizers like
1.ammonium sulphate
2.Di ammonium phosphate
3.Potasium nitrate
4.ammonium nitrate
5.19:19:19
6.20:20:20
7.Mecnielf (Miocronutrient complex)
as per the plant requirement you mix with water and supply to plants