... – NO3 P – PO4 3- Ca2+ Mg2+ K+ Na+ Cl- SO4 2- Fetc 4, 5-7 ,5 100 0-1 0000 20 0-3 000 300 0-6 0000 20 0-2 000 1 0-8 00 1 0-8 00 5-4 0 5-1 00 20 0-1 0000 5 0-1 500 20 0-1 000 20 0-2 500 20 0-3 000 5 0-1 000 5 0-1 200 6,0 3000 ... 2.00 0-3 0.000 3.00 0-6 0.000 20 0-2 000 1 0-8 00 1 0-8 00 5-4 0 5 0-1 000 5-1 00 1.00 0-1 0.000 4, 5-7 ,5 5 0-1 .500 20 0-3 .000 5 0-1 .200 10.000 18.000 500 200 200 25 300 30 3.000 6 250 500 60 10 0-2 00 10 0-5 00 10 0-4 00 ... 200 25 30 1000 250 300 500 500 300 60 6, 6-7 ,5 20 0-1 000 10 0-2 00 10 0-5 00 10 0-4 00 8 0-1 20 2 0-4 0 5-1 0 5-1 0 10 0-4 00 5 0-2 00 5 0-4 00 1 0-2 00 10 0-4 00 2 0-5 0 2 0-2 00 Nguồn: Huỳnh Thị Mỹ Phi, 2005.[6] Thông...