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At present, there is no unified conclusion about when corn enters the reproductive growth stage, which restricts the accurate simulation of corn growth and photosynthetic product distribution. The leaf area measurement instrument found that when the last leaf of a maize plant is fully grown, it is the fertilizing period of the female corn flower, which can be regarded as the turning point sign of the transition from vegetative growth to reproductive growth of the corn. The leaf area index (LAI) reflects the crop community. The important indicator of area change.
The leaf area measuring instrument research proposed that the maximum LAI is the sign that corn enters the reproductive growth stage, which avoids the error caused by using the specific growth period to judge the corn entering the reproductive growth stage. Combined with the index of maximum leaf area index of spring maize and the dynamic universal model of spring maize leaf area index, the dynamic date of maximum leaf area index and leaf area index of spring maize can be determined, which provides a basis for accurate simulation of leaf growth and photosynthetic product distribution of spring maize. .
Combined with the direct measurement values ​​of the leaf area meter, a dynamic universal model of the relative leaf area index of spring maize was constructed to avoid differences in the leaf area index due to different maize varieties, sowing dates, planting densities, and cultivation measures, and thus to be able to Accurately reflect the changes in the leaf area index of spring maize during the growth period.
The index of the maximum leaf area index of spring maize can be determined based on the index of the maximum leaf area index of spring maize, and the leaf area index dynamics can be obtained by using the leaf area meter on the dynamic general model of leaf area index of spring maize to accurately simulate the growth and photosynthetic of the leaf. Product distribution provides the basis. The photosynthetic product distribution of corn has different center of gravity in different stages of birth, and the corresponding distribution pattern will also change.
Shredder Blades For Tyre
Tire shredding is a technology for processing waste tires. The Shredder breaks the tires into smaller pieces or particles for subsequent recycling. This technology is of great significance in waste management and resource reuse.
1. Working principle
Shredding process: The tire shredder cuts and tears the tires through rotating blades or knife rollers, tearing the complete tires into small pieces or particles.
Staged shredding: Tires are usually large and strong and need to go through multiple stages of shredding. Primary shredding breaks the tires into larger pieces, which are then further refined through secondary shredding.
2. Application areas
Rubber recycling: Shredded tire fragments can be used to produce recycled rubber for the manufacture of new tires, rubber flooring, sports field covering materials, etc.
Fuel utilization: Shredded tire fragments can be used as alternative fuels and are widely used in high-energy consumption industries such as cement plants, pulp and paper mills, etc., effectively reducing dependence on traditional fuels.
Geotechnical materials: Tire fragments can be used in geotechnical construction materials, such as roadbed fillers, drainage layers, etc., to improve soil stability and drainage performance.