The purpose of cutting off the upper part of corn is to reduce the nutrient consumption transported from the roots and increase the ventilation and light transmittance in the field.

In this way, it is necessary to master the correct time to improve the color and 1000-grain weight of corn seeds and reduce the water content of seeds.

"Buy more food" is an affordable, reassuring and convenient food service launched by Pinduoduo in line with the changes of family life style of consumers. Through the Pinduoduo APP or WeChat "Buy more food" applet, consumers can pick up their food baskets and buy selected products from the national agricultural production areas without leaving home.