First, the vegetative growth stage

Seedling stage: It takes about 35 days from seed germination to transplanting at the seedling stage of rice. During this period, the seedlings continued to grow.

Transplanting period: The transplanting period of rice is from transplanting to planting, which generally takes 7- 10 days.

Tillering stage: Tillering stage is the time from transplanting to jointing stage, which takes about 30 days. After the rice seedlings turn green, they immediately enter the tillering stage. Tillering stage is the key to rice growth. At this stage, rice seedlings become strong and the number of leaves gradually increases.

Jointing stage: It takes about 15 days from jointing stage to booting stage. At this stage, rice seedlings grow rapidly and the jointing stage is long.

Second, the reproductive growth stage

Booting stage: Booting stage is from booting stage to heading stage, which is about 15 days. At this time, the ear of rice begins to germinate.

Heading stage: after the booting stage, it begins to enter the heading stage, that is, from heading to flowering. This time period takes about 15 days, which is the key to growth.

Flowering and pollination period: Flowering and pollination period is from flowering to filling, which takes about 15-20 days.

Grouting period: the grouting period is from the beginning of grouting to the end of mature harvest, which generally takes about 20 days. At this time, the grain is white and milky white, in which the starch accumulates continuously, and the dry weight and fresh weight in the grain will increase continuously.