What Is Degranulation?

Threshing is one of the most important links in the crop harvesting process. The grain of the crop is removed from the ears of the harvested crop, and at the same time, other exudates such as short stalks, glumes, and debris are separated from the grain as much as possible. come out.

[tu lì] discuss

Threshing is one of the most important links in the crop harvesting process. The grain of the crop is removed from the ears of the harvested crop, and at the same time, other exudates such as short stalks, glumes, and debris are separated from the grain as much as possible. come out.

Chinese name

Threshing

Pinyin

tu lì

Zhuyin

someone now '

Explanation

Detach the grain of the crop from the ears of the grain

tu lì

The process of removing the grain of a crop from ears of grain or other fruit-bearing organs. ^[1]

Relevant factors The difficulty of threshing of grains is closely related to the fixing strength of grains, cobs and glumes, and the fixing strength of grains is related to crop types, varieties, maturity and humidity. It is determined that wheat is easier to thresh than rice and indica than japonica; high maturity, low humidity and low maturity are easy to thresh. Production should be based on different crop species, varieties and changes in grain dry matter and moisture during the maturity process, select the appropriate model and harvest threshing period. ^[1]

The threshing method of the threshing device is relatively complicated for the mechanical action of grain threshing. When a certain crop is threshed, a certain force is mainly used. There are also several kinds of forces to complete the threshing. Generally, there are impact, rubbing, combing, grinding Wait. The threshing machine requires a descrambling rate of more than 98%, and the crushing rate (wheat, beans) and shell breaking rate (rice) of the kernels are below 0.5%. The earliest threshing tools in China were flail and stone mortar. The former was beaten by humans, and the latter was pulled by humans or animals. Grain harvesters are now widely used in many countries for harvesting and threshing. The combine harvester can simultaneously complete the harvesting, threshing, separation, and cleaning operations of grain. Its total loss rate does not exceed 1.5% of the total grain harvest and the cleaning rate is higher than 96%. ^[1]