What is double cropping rice and what is the difference between double cropping rice and regenerativ

Double cropping rice refers to a rice farming system in which two crops of rice are planted and harvested in one year in the same paddy field. According to its different cultivation methods, it can be divided into double-cropping continuous rice, intercropping rice and mixed rice.

Double cropping rice has a long history of cultivation in China, and was first recorded in the Classic of Mountains and Seas in the 3rd century BC. It is generally believed that the "double-cropping rice" and "re-cropping rice" often mentioned in ancient books include regenerative rice, mixed rice, intercropping rice and continuous cropping rice, etc., reflecting the diversity of the absence system of rice cultivation in China. The emergence of double-cropping rice has played a very important role in making full use of natural and labor resources and increasing grain production.

The dormant buds surviving on the rice stump after harvesting, given suitable water, temperature, light and nutrients, etc., are cultivated to germinate and regenerate tillers, and then head and mature rice, which is called regenerative rice.

Regenerative rice has a long history of cultivation in China. It has been reported that there are records of regenerated rice as early as more than 1,700 years ago. In particular, disaster years are often used as a supplementary measure for disaster relief.

In the 70s of the 20th century, with the popularization of dwarf varieties and the advent of hybrid rice, the research and promotion of regenerative rice became more and more active. In 1976, Sichuan Province planted hectares of regenerative rice, which grew to 60,000 hectares in 1977, with an average yield of about 750 kg per hectare and a high yield of 4,725 kg. The Institute of Agricultural Sciences of Foshan City, Guangdong Province used salt indica 203 to cultivate two seasons of regenerated rice, the first season of rice yielded kilograms per hectare, the first regenerated rice yielded 4875 kilograms per hectare, the second regenerated rice reached 2640 kilograms, and the total yield of three seasons was kilogram hectares.

In the 80s, regenerative rice developed faster. More than 10 provinces across the country have planted regenerative rice. According to incomplete statistics, in 1985 there were only hectares, in 1986 it was hectares, in 1987 it reached hectares, in 1988 it developed to more than 400,000 hectares, and in 1989 it expanded to 600,000 hectares, of which Sichuan Province accounted for 80 percent of the country's regenerated rice area.

Double cropping rice refers to those high-yielding rice that matures for half a year.

This type of rice is generally sown in early summer and harvested in late autumn. This is followed by a second season, which is harvested in late spring of the following year.

What is double cropping rice and what is the difference between double cropping rice and regenerative rice?

Dear, I am glad to answer for you: what is double cropping rice, and what is the difference between double cropping rice and regenerative rice? A:

Double cropping rice is rice that is planted and harvested twice a year in the same field. Regenerative rice is a rice cultivation method that uses the local temperature and light resources that are more than one season and less than the second season, which has a higher yield than the first season rice and a higher benefit than the second season rice. Compared with double cropping rice, regenerative rice can harvest two crops, but the input of regenerated rice is less and the benefit is higher. Compared with the first crop of rice, the same rice seedlings were planted, but one more crop of rice could be harvested, which improved the land utilization rate of Huitongyuan.

The output of regenerated rice is more than that of one season, and the labor is comparable; Less labor than double cropping rice. Labor-saving, cost-saving, high yield, high quality of regenerated rice. The yield of one-season rice is high, and the yield of regenerated rice is low.

It saves labor and time, saves costs, improves the utilization rate of cultivated land, and has high nutritional value of regenerated rice. Compared with one-cropping rice and double-cropping rice, regenerated rice has a lower yield than one-cropping rice and double-cropping rice, but has the highest nutritional value.