Crops are various plants cultivated in agriculture. Including food crops and economic crops (oil crops, vegetable crops, flowers, grass, trees) two categories. "Food is the heaven" expresses the relationship between people and food. The only reasonable dietary arrangements can bring health to human beings. The growth of crops is inseparable from scientific and technological production technology, as well as machinery and equipment manufactured by new industries that can assist agricultural production. For example, corn planters, corn harvesters, peanut pickers, peanut shellers, corn threshers, Sorghum thresher, millet thresher, rapeseed thresher, soybean peeler, sesame peeler, rice mill, etc.
