Sorghum hulling has a special machine, sorghum huller. Sorghum must be hulled, but not necessarily peeled. It is called sorghum rice after peeling, and it is best to make wine with skin. The skin of sorghum contains aromatic substances such as tannin, so sorghum wine without skin has no advantage.

Pigment can be extracted from sorghum shell, and sorghum red pigment is a natural pigment, which is metallic brown-red solid powder.

Sorghum likes warm and light, and has higher temperature requirements than corn in its growing period, so it has certain high temperature resistance. The suitable temperature for the whole growth period is 20-30℃, and the whole growth period needs sufficient illumination. Distributed in tropical, subtropical and temperate regions all over the world. Cultivated in northern and southern provinces of China.

Extended data:

sow seeds

Sowing time: Sowing in time is the key to ensure the integrity, neatness and Miao Zhuang of seedlings. Sorghum seeds are not tolerant to low temperature when they germinate, and germinate too early and too slowly, which is easy to be infected by bacteria, leading to powdery or moldy seeds, which will also increase the occurrence of head smut and affect the yield.

The sowing date is determined according to the variety growth period, ground temperature and soil moisture. Generally, the ground temperature of 5 cm plough layer is stable at 10- 12℃, and the soil water content is 15%-20%. Sow late-maturing varieties early and early-maturing varieties late.

Grasp the best sowing date according to the plot: sow early in time in mountainous areas, sloping fields and Chaoyang plots with serious spring drought; Low-lying areas are prone to waterlogging, and flat land is suitable for late sowing. In normal years, it is suggested that the second and third accumulated temperature areas should be planted during May 5- 10.