Period

Date

Control site and Cyclic irrigation site

Land preparation

4/22 - 5/20

(Puddling)

(4/29 - 5/6)

Transplanting

5/5 - 5/15

Ordinary irrigation

5/21 - 8/20

(Mid-summer drainage)

(about a month)

Intermittent irrigation

8/21 - 9/23

Harvest

9/6 - 9/29