美国有足够天然气，这对尿素生产至关重要。
回答: 美国农业在目前战争和全球尿素价格上涨的情况下，完全可以靠本土生产满足尿素需求，进口只是为了成本优化或调峰，并非生存依赖。
由 MoonlightBee
于 2026-03-22 20:49:04
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