Rice yield and rice quality are directly related to rice harvest time. The most recent question for farmers is when is it appropriate for rice to harvest? The first question is to understand the stages of rice maturation. Generally, rice maturation will go through four stages: milk ripening, wax ripening, ripening and maturation, and then the harvest time can be determined based on specific needs. In milk-mature rice, grouting begins 3-5 days after flowering. After grouting, the content of grain contents was white whey and the starch accumulated continuously. The dry weight and fresh weight continued to increase. At the beginning of milk ripening, the fresh weight increased rapidly. During the middle period of milk ripening, the dry weight increased rapidly. By the end of milking, the fresh weight reached a maximum. At the maximum, the grains of rice gradually harden and turn white, and the back is still green. During the period of the hand, the middle of the ear was pressed and the grain had a hard object. The duration was about 7-10 days. During the wax ripening period, the contents of the grains were thick and sticky, and no milky substance appeared. The hand pressed the grains in the middle of the ear and had a hard feeling. The fresh weight began to decrease, and the dry weight was close to the maximum. The green color on the back of rice gradually disappeared, and the hulls turned yellow slightly. This period is about 7-9 days. During the ripening period, the husks turn yellow, the water content of the rice grains decreases, the dry matter weight reaches a certain value, and the grains harden and are not easily broken. At this point, it is a suitable harvest period. During the maturation period, the yellow color of the chaff is faded, the branches are dry, the top branches are easily broken, and the rice grains occasionally have traces of transversal, affecting the quality of rice. How to determine the timing of harvest? I believe that it should be determined according to your needs. The higher the rate of brown rice and polished rice is, the later the harvest time is, but the whole rice rate is higher when harvested 50 days after the ear. The later harvest, there was no difference in amylose content, chalkiness rate, chalkiness and protein content all increased. The later the harvest, the higher the yield, but the difference in yields after 45-55 days after heading was not significant. Therefore, harvesting 45-50 days after emergence can balance both yield and quality. After the ear emerges, the accumulated temperature reaches 9500 or more, and the general variety can be harvested when the appearance is 5%-10% green or 1/3 of the panicle turns yellow. Deep Intra Uterine Insemination Catheter Deep Intra Uterine Insemination Catheter,Artificial Insemination Catheter,Animal Softrandtificial Insemination Catheter,Silicone Veterinary Insemination Catheter Jinan Mucho Commercial Inc. , https://www.muchovet.com