This older article from 2015 shows why Turkey had to ban nitrates. It really had gotten rediculous. Track and trace alone won’t solve the problem. If nitrate producers worldwide want to identify these explosives 100%, they will have to embed dna marking within the fertilizers:
AKCAKALE, Turkey — The laborers work all day, piling bags of fertilizer onto carts and wheeling them through the crossing that connects this southern border town to Syria.
The Syrian town next door is firmly controlled by the extremists of the Islamic State, as is clear from the black flag flying over downtown. And while the fertilizer, ammonium nitrate, is widely used for agriculture, it has also been used by terrorists around the world — including the Islamic State — to build powerful explosives.
Few here think the fertilizer is meant to help Syrian farmers.
“It is not for farming. It is for bombs,” said Mehmet Ayhan, an opposition politician from Akcakale who is running for Parliament. But he did not oppose the deliveries, saying they created jobs in his impoverished town.
Market Data 
Markets 
AI
