"Part of the problem seems to be that there is no Chinese-language text of the agreement that the Chinese delegation supposedly was agreeing to," according to one expert.
The number of Americans who view the countries favorably declined by 12 percent.
The new research came at a time when Chinese leaders were already battling a slowing economy. This week, Beijing officially lowered its growth target.
The overall trade deficit has risen to a record $891.2 billion, the highest in the country's 243-year history.
"The share of total U.S. agricultural exports to China in value terms is projected to be 6 percent, down sharply, with China falling from the top market in 2017 to fifth place," USDA Chief Economist Robert Johansson said.
"For U.S. soy producers, if the trade war ends tomorrow, we will likely not get back to where we were before the trade war started," Mark Albertson, the director of strategic market development at the Illinois Soybean Association, said.
"You're talking to our allies over there and you wonder whose side they're going to be on," Senator James Inhofe warned.
"The trade war has been very damaging for the U.S. agricultural economy," David MacLennan, chief executive of U.S. food and agricultural giant Cargill, said in Davos Wednesday. "The longer this goes on, the worse it is."
The Chinese president warned that "many domestic and foreign forces" are trying to "cultivate opponents of the government."
Get 'Em Where It Hurts American brands like Apple and GM are feeling the wrath of Chinese "patriots"—to the enjoyment, no doubt, of Beijing
Family-owned midwestern businesses are being forced to pursue moving to Mexico to avoid tariffs levied in President Donald Trump's trade war.
The duel for economic superiority between Beijing and Washington D.C. has cost each country $2.9 billion a year.
"The threat of car tariffs is still on the table," said Eric Schweitzer, president of the Association of German Chambers of Industry and Commerce.
Leaked diplomatic cables quote Xi as warning that China "would not submit to bullying...even if a trade war hurt everybody."
Throughout China, there has been an increasing perception that the arrest of Huawei's CFO was a "political kidnapping" carried out in conjunction with the United States.
Although the context of Meng Wanzhou's arrest is alleged violation of the sanction on Iran, U.S. unease with the Chinese company runs much deeper—and a constructive resolution of the trade war has just become a lot less likely.
Marty Kady, the editor of Politico Pro pointed out on Twitter that Meng's detention was the "equivalent of an Apple or Facebook exec being arrested in China."
"China has pretty much given up nothing in this deal."
While Trump has routinely argued that the tariffs will encourage companies to bring jobs back to the U.S., many are simply looking for cheaper alternatives in other Asian nations.
Disagreements on an array of issues, exacerbated by political incentives to avoid compromise, raise a persistent risk of military crisis.
"If you are friends with two countries which are on different sides, sometimes it is possible to get along with both, sometimes it's more awkward when you try to get along with both," Prime Minister Lee Hsien Loong warned.
"We really believe we are in a strong position either way. We are at $250 billion [in tariffs] now; we can more than double that," the vice president said.