Mi Dou is mainly distributed in eastern and southern Asia, and the main producing countries are China, Thailand and Myanmar. The main producing areas in China are three northeastern provinces, Inner Mongolia, Shanxi and other places.
Rice and beans are mostly planted in tropical and subtropical low-altitude areas, which are resistant to high temperature, drought, waterlogging and cold. Sowing in the north of China is from late April to mid-May, and sowing in the south is from June to July.
I. Nutrition and health care
Mi Dou is a kind of bean food with rich nutrition. Every 100g contains protein 19. 1%-22.7%, fat 0.6%- 1.2%, carbohydrate 60.7%-65.4%, crude fiber 4.0%-5.8% and ash 4.8%. Vitamin b 1 (thiamine) 0.39-0.57, vitamin b20.08-0.2 1 mg, nicotinic acid 2.2-2.4 mg. Compared with other beans, Mi Dou contains more calcium.
The contents of amino acids (nitrogen mg/ 100g) in protein are: arginine 462, histidine 380, leucine 606, isoleucine 387, lysine 769, methionine 169, cystine 44, phenylalanine 325, threonine 294 and valine 394.
As a pasture, when the pods grow to half the size of maturity, rice beans are rich in nutrition. According to the determination, the nutrients in vegetative growth period are: dry matter 16.0%, in which cellulose 310.5%, crude protein 18.0%, fat 1. 1%, and nitrogen-free extract (nitrogen mg//. The nutrients in flowering period are: dry matter 24.0%, including cellulose 32. 1%, protein 14.5%, fat 1.0%, nitrogen-free extract 40.0%, ash 10.8% and calcium/kloc-0.
Mi Dou is also an ancient folk medicine, and its medicinal value was recorded in ancient medical books more than 2,000 years ago in China. According to the Chinese medicine dictionary: