China was one of the first country

1．________

in the world to study science of farm. With

2．________

the help of pioneers of farming, China becomes the

3．________

research center for agriculture the old

4．________

days. One of the pioneers called Jia Sixie, lived

5．________

in 6AD. He studied ways of keeping seeds or

6．________

how to improve soil conditions. He wrote a

7．________

book called Qi Min Yao Shu, in that there

8．________

is lots of informations. He told people to do things

9．________

at the right time of year, examine the soil

on your farm and change the crops. The advice

10．________

benefits not the people in the past, but us today.