Excuse me, how about wheat farmer 999? According to the propaganda, it is 1300 kilograms, which was developed by Shandong Agricultural University and what unit?

There is also an advertisement here saying: Super wheat "Jianong 999" is twice as long as ordinary wheat, and its stalk is like a cigarette butt, with an yield of 1.800 kg per mu. Can you believe it? It should belong to the commercial network boasting hype. Since ancient times, there has not been a wheat variety with an yield of more than 800 kg per mu. 300 ~ 500 Jin per mu is already a high-yield field.