Growth cycle of rice

The growth cycle of rice varies from variety to variety. Early-maturing varieties generally mature about 60-90 days after sowing, and late-maturing varieties generally mature about 265,438+00-240 days after sowing.

It takes about 90 days from germination to seedling jointing stage of rice seeds. This period is divided into four periods. At seedling stage, it takes about 35 days from germination to transplanting of rice seeds. The transplanting period is the period from transplanting to planting, which takes about 7 ~ 10 days. Tillering stage, which takes about 30 days, is the time from transplanting to jointing stage. The jointing stage is the period from jointing to booting, which takes about 15 days.

The period from booting to maturity is called reproductive growth period, which takes about 70 days and is divided into four periods. Booting period is about 15 days from booting stage to heading stage. Heading stage, it takes about 15 days from heading to flowering. The flowering and pollination period is about15 ~ 20 days from the beginning of flowering to the beginning of filling. During the grouting period, it takes about 20 days from the beginning of grouting to mature harvest.

Like planting rice in the northeast, it can only be planted once a year, which is different from the rice growth cycle in South China. Although the growth of crops is less affected by the natural environment, crops and vegetables are different and cannot be planted in greenhouses at present. Environment is one of the important factors affecting planting. When choosing planting time, growers should not only look at the environmental soil conditions, but also see whether it meets the market demand.