An auxiliary investigation of the plant lodging meter found that the lodging is a phenomenon in which plant stems are caused by external factors from a natural upright state to a permanent dislocation. Crop lodging is divided into two types, stem lodging and root lodging. The stems are lodged in different degrees of bending or breaking of the crop stems. Mainly in the case of compaction of the topsoil, the development of the stalks is not coordinated with the weight of the plants it supports or caused by external factors such as storms. It may also be caused by pests and diseases. For example, the sclerotia of sap inoculated with rape stalks causes the hollow interior to be easily broken, resulting in lodging of the plant. Roots are inverted stalks due to the inclination of the root stems, and are prone to occur when the surface is moist and soil is loose. Similar to other crops, two lodging types can coexist in rapeseed production, but there are differences between different cultivation patterns. Stem lodging is common during rapeseed transplant mode production. Compared with transplanted rapeseed, the diameter of root neck, number of roots and total root length of live rapeseed were all significantly better, so they had better lodging resistance and could better avoid the collapse of roots due to soil freezing. The rapeseed direct seeding cultivation is a kind of production method that directly transplants rapeseed seeds into the field without seedling transplanting, which simplifies the cultivation procedure of rapeseed, greatly reduces the labor capacity of rapeseed production, improves the planting efficiency, and at the same time, the current rapeseed direct The area has been continuously expanding. Therefore, research on the traits of stem stalk lodging in direct seeding is more targeted and of greater significance.
Using the plant lodging meter, it was found that the mechanism of co-influence on the lodging resistance and yield of rape seedling populations and individual characteristics was not well studied. Therefore, the rapeseed varieties with different lodging resistance were coordinated in the seedling stage of rapeseed. The relationship with individuals lays the foundation for the coordination of the relationship between the formation of granule organ and the culm in the later period. It is an important part of the research on lodging resistance, high quality and high yield of rapeseed.
Pillow Block Bearings are roller bearings and bearing seats together in a bearing unit. Most of the outer spherical bearings are made of spherical outer diameter, and are equipped with bearing housings with spherical inner holes, with various structural forms, good versatility and interchangeability.
At the same time, this kind of bearing has a certain disposition in design, easy to install, with double structure sealing device, and can work in bad environment. The bearing seat is usually made by casting. Commonly used are vertical base (P), square seat (F), convex square seat (FS), convex platform circular seat (FC), diamond block (FL), annular seat (C), slide block and so on (T).
Spherical bearings for heart bearing and bearing seat, based on the name for bearing with bearing seat call center, such as the set screws with Spherical Bearing UC205 with vertical block UCP205. Spherical bearings with a strong interchangeability, bearing heart can be assembled on the same specifications bearing in different shapes.
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Outer spherical bearing with square seat
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