Climatic conditions of rice planting

If rice belongs to the genus Oryza. The fruit of rice is rice, which is called brown rice after the glume shell is removed. Rice can be obtained by grinding off its rice bran layer. Rice is another name. Unshelled rice can be called rice, rice and millet. Rice can be divided into glutinous rice and non-glutinous rice, indica rice and japonica rice, early rice and mid-late rice, hybrid rice and conventional rice according to the way of seed retention, and floating rice and rice according to whether it is planted in soil or not.

Brief introduction of rice

Rice likes warm and humid environment, and the average temperature during its growing period is between18 and 25 degrees. The average monthly temperature in the hottest rice areas in China is generally above 20 degrees, mostly distributed in tropical and subtropical monsoon climate areas.

Rice planting conditions

Rice likes warm and cool environment, and is widely planted in the plain with plenty of water and sunshine. For example, there is a large area of cultivation in the middle and lower reaches of the Yangtze River in China.

Suitable for rice planting areas

Rice can be divided into early, middle and late rice according to the production season. Early rice is usually sown in March-April, middle rice in April-May and late rice in June. Rice can also be planted in different stages according to different planting areas. Double cropping rice is widely planted in southern China. The first season rice is sown in April, and the second season rice is sown in July. 20 10 ~ 20 10, the input-output ratio of single-season rice is11.52 ~1.77, and that of double-season rice is11.48 ~/. Double cropping rice has high income cost and low income. In addition, the yield of single-season rice is high, which is not affected by seasons, and the risk of double-season rice is high, which is restricted by climatic conditions. Large growers should arrange the areas of early, middle and late rice according to local conditions under the condition of a certain paddy field area. Because of the poor soil fertility in mountainous areas and inconvenient transportation, it is advisable to plant more one-season mid-season rice, while the soil in plain areas is fertile, so it is best to plant double-season rice.