2 results about "Leaf area index" patented technology

The invention discloses a plant leaf area index detecting method and system based on multi-sensor information fusion. The method comprises the steps that data synchronization between sensors is realized; a lidar sensor is used to scan the side of the canopy of a plant to acquire the two-dimensional laser point cloud data of the section profile of the plant canopy; the attitude angle of the lidar sensor is acquired through an inertial measurement unit, and the two-dimensional laser point cloud data are corrected according to the attitude angle; the positioning coordinate of the lidar sensor isacquired through a satellite navigation and positioning system; according to the positioning coordinate, the distance between two laser scanning points is calculated; the three-dimensional laser pointcloud image of the plant canopy is reconstructed by fusing the positioning coordinate and the corrected two-dimensional laser point cloud data; relevant parameters required for the leaf area index inversion calculation are acquired; a leaf area index estimation model is constructed; and the model is operated to acquire the leaf area index of the plant. Compared with the prior art, the method andthe system improve the influence of a bumpy road surface on measuring the leaf area index, and improve the leaf area index measuring efficiency.

The invention discloses a management method of a Shouxiang chicken farm. The method comprises the following steps: (1) performing management on a chicken house; (2) performing management in a breedingplace: grazing Shouxiang chickens in a pine forest or a mixed forest containing pine trees, wherein the forest has a tree age of more than 6 years, humidity of 60-85% and a leaf area index (LAI) of 2.0-2.7; and in spring, removing waste and diseased and dead insects in the breeding place in time, and spraying a biological disinfectant for one time; and (3) performing epidemic prevention management on the chicken house: 10 days before chicks are grazed, firstly cleaning up sundries inside and outside the chicken house, then closing doors and windows of the chicken house, spraying and burning the bottom surface and metal cages in the chicken house for one time by using a flame blowtorch, burning an anti-disease agent in the chicken house for 3 days, opening the doors and the windows for ventilation, and during closing of the chicken house, spraying a biological disinfectant to the wall and ground outside the chicken house. The method disclosed by the invention can realize management ofthe chicken farm from the interior to the exterior, reduce an occurrence of diseases, and has broad market promotion value.