Readit News The global production of nitrogen fertilizer amounted to some 117.5 million
metric tons in 2018. China was by far the country with the largest
production, with an output of 28.9 million metric tons of nutrient. It was
followed by the United States and India, with 13.6 and 13.3 million
metric tons produced, respectively.
I think so far both Russia and Ukraine have been fighting based on stocks that are already manufactured. For instance Russia has about 2,000 S-300 missile launchers and they probably have at least 10x that number of missiles. (Part of the untold story of the cold war is that the Soviets were driven crazy by the threat of the U-2, SR-71, B-52, B-1, B-2, ... and said "no way" and spent more money than they had on air defense.)
Similarly they have been working through large stocks of artillery shells, rockets, etc.
So, a +/- of $3B is a 16% shock to the fertilizer market. That is plus one year of explosives, but if you are going to war, you might need several years, all at once (pow). We are talking about future prices in the grand scheme.
That is in gross, too, we don't know specific chemical or supply bottlenecks: one kink in ammonia might not mean much except for fertilizer production; if ammonia is produced via hydrocarbon extraction, then fertilizer is not only dependent on energy prices, but competing directly with wartime energy supply.
You don't train on music, you train on technique (and practice music, or play).
You were not born with the innate "cognitive ability" to know what these symbols mean, you must train yourself to recognize them, read them in many configurations, iow stay training or go dumb.
The link OP found is the same link between spending extra on education and the expected outcome.