Red beans: They are cultivated in the north and south of China.
Red beans: produced in China, Taiwan Province, Guangdong, Guangxi and Yunnan. Born in sparse forests in mountainous areas. Widely distributed in tropical areas.
2. Different growth habits:
Red beans: Red beans like temperature, light and waterlogging. The whole growth period should be above 10℃, and the effective accumulated temperature should be 20-25℃. Generally, germination and emergence begin above 8- 12℃. Red beans are sensitive to light. Early sowing prolongs the growth period and does not mature early. Therefore, the introduction from high latitude to low latitude will be premature, while the introduction from low latitude to high latitude will prolong the maturity.
Red beans: like light, deep roots, tough wood and strong wind resistance. The root system is developed and has nodules, which can fix free nitrogen in the atmosphere. Germination is vigorous and growth is rapid. The requirements for soil are not strict, drought-resistant and barren, and there are few pests and diseases. It is a positive plant and likes strong light. The suitable growth temperature is 23-30℃, and the growth is fast. Heat-resistant, drought-resistant, barren-resistant, acid-resistant, shear-resistant, wind-resistant and pollution-resistant, and trees are not easy to transplant.
Extended data:
Species difference:
There are three kinds of red beans in botany: red bean (Vigna angularis) and sea red bean (Adenanthera pavonina? And acacia (scientific name: Abrus precatorius). These are three plants belonging to the same family and different genera.
According to the classification of Flora of China, kidney beans belong to the genus cowpea in Leguminosae. Acacia is included in the genus Acacia in Leguminosae. Beanstalk belongs to the genus Beanstalk of Mimosinae in Leguminosae. Red bean is an erect or twining herb, which is one of the common ingredients. Robinia pseudoacacia is mostly a vine, and a few are climbing shrubs or shrubs. Red beans are deciduous trees, 5-20 meters high.
China Tang Dynasty poet Wang Wei's famous Acacia and Red Bean Poems are often regarded as symbols of missing in China literature, and Wang Wei's poems and legendary "Acacia beans" are not necessarily acacia. Similar plants in southern China include red beans, acacia and sea beans, all of which can produce bright red seeds. Which one is specific remains to be verified, and there is no clear answer in botany at present.
Baidu Encyclopedia-Red Bean
Baidu Encyclopedia-Red Bean