The phenomenon of food waste outside the table can not be ignored.

When it comes to food waste, people often focus on the "dominant waste" on the table, but pay little attention to the loss of each link after grain harvest. Harvester leakage, storage fire, mildew, circulation, handling, polishing, excessive polishing. According to statistics, after production alone, China's annual grain loss exceeds 70 billion jin, close to 6% of China's total grain output, which is equivalent to the annual grain output of Jilin Province, a major grain-producing province. Grain depletion has become an important factor in China's food security.

According to the author's investigation, the postpartum loss of grain mainly comes from four aspects: first, the omission of mechanical harvesting. Take corn, for example, in the past, manual harvesting of corn first cut down the corn straw, and then broke the corn cobs one by one, pulled them home and then threshed them. Most of the work during this period depends on manpower, and there is little loss in the process of collection. After mechanized harvesting, corn kernels are more dry and brittle, so corn kernels are easy to drop when harvesting corncobs. Catch up with jade rice lodging, will also drop some corncobs, every year this kind of loss is a lot. The second is warehousing. According to the rural investigation in some areas of Changzhi, Shanxi Province, many farmers still use the square method of storing grain directly on the ground, which can easily lead to rat bite and mildew, cause great waste and reduce the quality of grain. The third is transportation. Some grain collection and storage enterprises have simple storage facilities and backward mode of transportation, which not only increases the risk of grain storage, but also increases the loss of grain in circulation. The fourth is over-processing. With the improvement of living standards, when people buy rice, they ask not only for taste, but also for appearance. Therefore, most of the rice on the market will be polished, or even polished many times. But once polished, the rice is reduced by one layer and the rice yield is reduced. Over-processing of grain will not only reduce nutrition, but also increase production costs.

If the postpartum waste of grain is not resolutely curbed, it is likely to aggravate the contradiction between domestic grain supply and demand. While persisting in vigorously developing grain production, we must vigorously reduce the postpartum loss of grain.

First of all, it is necessary to strengthen the consciousness of loving and saving grain. The root cause of wasting food lies in people's disregard of loving and saving grain and indifference to the phenomenon of wasting food. We should do a good job in publicizing and popularizing the work of putting an end to postpartum food waste, and carry out targeted education, criticism and punishment for the wanton waste of food.

Second, it is necessary to straighten out grain prices. At present, China's grain-based agricultural products have reached the era of high prices, but grain prices are still obviously on the low side. If the grain price is too low, it is bound to affect the enthusiasm of growing grain and the establishment of grain-saving consciousness. Only by straightening out grain prices can we promote grain production and economy.

Third, it is necessary to strengthen infrastructure construction. Vigorously promote advanced trial warehousing, loading and unloading, transportation technology and equipment, effectively reduce grain logistics losses. We will increase technical support and capital investment in scientific grain growing, grain storage, transportation and processing, promote the improvement of farmers' grain storage conditions, develop new technologies suitable for farmers' grain storage, speed up the construction of grain circulation system, and reduce transportation losses. We will carry out scientific research on grain storage, change the concept of grain storage, change the current situation of extensive management, speed up the development of new grain storage models such as "grain banks", promote grain reserve management, and upgrade to the direction of modernization such as green grain storage and intelligent management.