Rice harvesting technology
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The rice must reach full maturity before it can be harvested. From the perspective of external appearance of the ear, the grains are all hardened and the cobs are dry and yellow. 70% of the cobs and one or two stems are dry yellow, reaching the above indicators (rice Moisture content is 2o%-25%, indicating that Gu Zhuang is full and full, and the plants stop feeding nutrients to the grain. At this time, the crop was harvested when the crop was not fully mature, and the weak flower under the ear was insufficient for grouting, resulting in reduced yield and quality. . According to the measurement, the harvest yield of 100 days after the heading of mid- and late-season rice in a single season was calculated as lOO%, and the harvest was carried out 50 days after heading and the yield was 94.2%: 45 days after heading, the yield was 89.1%, which was 40 days after heading. The output was 85.7%, and the yield was reduced by about 1% for each day of early cut. In addition, unsafe rice grains, such as grain rice and shengbai, increase and the quality of rice decreases. Properly delayed harvesting can reduce the ratio of green rice and improve the palatability of rice.
Under normal circumstances: high-quality rice requires clear harvest, while taking off edge: with human institutions threshing or mechanical take-off. Avoid stacking for a long time or playing on the road to avoid exposure to pollution and deterioration of quality. During storage and transportation, pay attention to single collection, single storage, single transportation, and warehouse to disinfect the insects and rodents. After entering the warehouse, pay attention to check the temperature and temperature, prevent mold, prevent rat damage, and transport them without mixing with other substances. During the harvesting process, it is forbidden to remove, crush, and dry asphalt roads, fields, and sites that have been contaminated by chemicals, pesticides, industrial waste, and waste liquids.
When harvesting by hand, it must be dried in the solid room for 3-4 days after being cut down. The stems and leaves must be sun dried and then transported back to the site. At that time, if it was not able to get stronger, the rice-ears would be thrown out toward the outside in order to facilitate the drying. The freshly cut rice plants should not be in a hurry to tie the stacks to prevent them from deteriorating. According to the survey, the freshly-cut rice plants baled and stacked, after two days: Thousand-kidney children fell 0.2-0.3 grams, and about 5 kg of rice was lost every 667 square meters. Rice ear drying is not enough, rice grain is not easy to remove.