kinds of corn from market were tested for moisture,1000 kernels weight,bulk weight,hardness,crude protein content,crude fat content and 6 kinds of corn were tested for lysine content.The results showed that moisture contents ranged 13.08_16.87%,average 15.10%;1000 kernels weight 238~376g,average 329.3g;bulk weights 704~776kg/m 3,average 748g;crude protein contents(d.b.)8.30~12.59%,average 10.46%;crude fat contents 3.89~ 6.32% (d.b.),average 4.75%.The lysine contents of 6 kinds of corn tested were 0.31~0....