Does rice cultivation have anything to do with climate? What is the best maturity of rice in a year?

Rice cultivation is related to climate. In China, it is usually twice a year in the south, once a year in the north and three times a year in Hainan. It can be seen that rice cultivation is closely related to climate. Of course, the regional climate is different, and the rice varieties they grow are also different. The best one should be two seasons a year, which can not only ensure the whole rice rate, but also ensure sufficient starch content, rich nutrition and good taste. Temperature determines the basic development of rice, and natural climate has great influence. It has long been known that temperature is an important factor affecting the growth and development of rice. Seeds can germinate smoothly only at a suitable temperature, which means that the best temperature is neither the lowest nor the highest. If the temperature is too low, although the seeds can still germinate, the germination rate and germination potential will be greatly reduced, which will easily lead to uneven germination, greatly reduce the endosperm transformation efficiency and seriously hinder the vigorous growth of seedlings. If the temperature is too high, the degree of seed germination may be too fast, which will also affect the basic growth of rice seedlings. To ensure the healthy growth of rice seedlings, it is necessary to germinate at 10- 12℃.

Light is very important to the growth of rice, so there will be different regional differences. In the germination stage of rice, the influence of light is not great, but in the growth process of rice seedlings, the influence of sunlight is very important. Insufficient light will directly affect the formation of chlorophyll, and then affect the photosynthetic capacity of rice, the growth of leaves, and the basic morphology of leaves will also be affected.

However, once the light is insufficient, the photosynthetic products of the main leaves can't meet the growth of rice itself, let alone be transferred to other leaves, and the seedlings don't grow luxuriantly enough, so the yield of rice naturally decreases greatly. This is why, in the south, there are usually two seasons in a year, while in the north, there is not enough light. There is usually rice in one season. Only in Hainan, where the sunshine is the most abundant, will there be rice planting in three seasons a year.

Rice cannot live without water, which is one of the inevitable growth factors. As the name implies, rice can't live without water, and it can't live without water from the beginning of rice seed germination. Moreover, the seed grain must absorb a lot of water from the outside to ensure the healthy growth of seedlings. If the water is insufficient, the seedlings may die prematurely. Of course, the water content depends on the situation of the seedlings. Proper water content is the key. You can't be short of water, let alone let the seedlings drown. Once there is too much water, the seedlings will not grow well and the rice yield will be greatly reduced.

From the overall growth of rice, water is the most indispensable. From emergence to later growth, only before the final harvest will the fields be aired, which is the key measure to effectively cut off the water source and ensure the high yield of rice.

How many times a year, it is best to consider how many times a year according to the region and the quality of rice. Double cropping a year can make perfect use of the weather, not waste land area, and make full use of water sources in the south. The most important thing is that in the southern climate, rice cooked twice a year tastes good, with enough starch and delicious taste. But in the north, there are also the most famous high-quality rice, which is cultivated in different geographical conditions, so it is best to plant rice according to local conditions.

As the main crop planted in China, rice is mainly determined by the local climate, which is the basic element of planting and can ensure high yield and bumper harvest.