Scoundreller
4 hours ago
So a couple things:
1. if you’re a natgas producing country with lots of farms (hi USA and Canada) , your mega farm is probably injecting ammonia directly into soil as its nitrogen source, not urea. Pdf pg10, labelled pg5: https://www.ers.usda.gov/sites/default/files/_laserfiche/pub...
80-90% of US nitrogen fertilization is ammonia (because it’s almost entirely nitrogen and the rest are bonded to heavier molecules than hydrogen).
Ammonia prices always have big geographic variations because it’s a pain to ship a hazardous gas versus liquids or solids. https://businessanalytiq.com/procurementanalytics/index/ammo...
And much of it gets applied in the fall, not spring
2. Nitrogen fertilizer varies by crop. Beans crops (soy, kidney beans, chickpeas) fixate their own nitrogen and have zero/minimal applied. Corn and grains, particularly the higher protein varieties need among the most applied.
3. If you like to eat farmed land animals, you’re going to have a bad time from high fertilizer prices. Of traditional edibles: cattle is going to be the worst impacted. Chicken the least. Pork is in the middle. https://www.pbs.org/wnet/peril-and-promise/2022/03/feed-conv...
AngryData
2 hours ago
I don't know if I agree with their conclusion on #3, beef is fed 90% alfalfa grass which is literally cheaper than dirt and fixates its own nitrogen. Yeah they eat more feed per pound of meat, but alfalfa is literally the cheapest and easiest crop to grow. Sow it, mow it, bail it, now you have good ground to plant grains in without artificial fertilizer next year. You only feed cows grains during their last month to finish them to increase marbling/fat content.
If you produce less beef, you grow less alfalfa, and you end up using more artificial fertilizer which might even raise grain prices.
pjc50
23 minutes ago
I wondered about the prevalence of this in Europe: https://www.researchgate.net/figure/Cultivation-area-of-alfa...
Looks like Ireland is mostly grass-fed and it's southern Europe which has significant alfafa growth. I don't think I've ever seen it in the UK.