1. Place of OriginIts cultivation history can be traced back to India in 3000 BC. my country also has a long history of rice cultivation. Rice has been planted in the Yangtze River Basin in China for 7,000 years. Later, as it spread, it gradually developed westwards and was introduced to southern Europe in the Middle Ages. Another theory is that it originated in Nigeria in west Africa, about 3,500 years ago. It is now distributed over a wide range, generally in tropical, temperate and semi-tropical coastal plains. In my country, it is generally concentrated in areas such as the Yangtze River Basin in the south. 2. Growth characteristics1. Soil: It is not very demanding on the substrate. It can be planted in any loose and well-drained soil, but paddy soil is the best. 2. Temperature: There are certain requirements for temperature. The minimum temperature for seedling germination must be guaranteed to be 10-12℃, and the most suitable temperature is 28-32℃. If the temperature is too low, the differentiation time will be prolonged. Below 20℃ or above 40℃, pollination will be seriously affected. 3. Humidity: It needs humidity support in its growth environment. The humidity must be high to produce ears. The relative humidity should be maintained at 50-90% for best results. |
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