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In mechanised harvesting, processing may also begin as part of the actual harvest process, with initial cleaning and sorting performed by the harvesting machinery. Initial post-harvest storage conditions are critical to maintaining quality. Each crop has an optimum range of storage temperature and humidity.
Post-harvest losses occur between harvest and the moment of human consumption. They include on-farm losses, such as when grain is threshed , winnowed , and dried. Other on-farm losses include inadequate harvesting time, climatic conditions, practices applied at harvest and handling, and challenges in marketing produce.
Post-harvest losses of vegetables and fruits occur at all points in the value chain from production in the field to the food being placed on a plate for consumption. Post-harvest activities include harvesting , handling, storage , processing , packaging , transportation and marketing .
Harvesting of poppy straw is an alternative, largely mechanized, method. The plants are allowed to mature fully, then a machine is used to harvest the entire field. The ripe poppy seeds are separated out by threshing and winnowing, and the remainder is poppy straw. Poppy straw usually consists of only the above ground parts of the plant, but ...
Gleaning is the act of collecting leftover crops in the field after harvest. During harvest, there is food that is left or missed often because it does not meet store standards for uniformity. Sometimes, fields are left because they were not economically profitable to harvest.
Different food preservation methods have different impacts on the quality of the food and food systems. Some traditional methods of preserving food have been shown to have a lower energy input and carbon footprint compared to modern methods. [3] [2] Some methods of food preservation are also known to create carcinogens.
The quality of fish and fish products depends on safe and hygienic practices. Outbreaks of fish-borne illnesses are reduced if appropriate practices are followed when handling, manufacturing, refrigerating and transporting fish and fish products. Ensuring standards of quality and safety are high also minimizes the post-harvest losses." [16]
Although originally a forestry management technique, daisugi has also found its way into Japanese gardens as an aesthetic feature. [14]Examples of daisugi forestry can still be found in areas of northern Kyoto where it was developed, though Kitayama sugi plantations do not contribute significantly to the domestic lumber market as they once did.