alias: Trifolium repens, Trifolium repens, Crotalaria hollandaise and Trifolium In the snow

Trifolium mainly includes three types: Trifolium (the most authentic clover at present), Oxalis, Medicago and others.

Trifolium repens (also known as "white clover") is a short-term perennial herb in Leguminosae and Trifolium repens, with a growth period of 5 years. There are more than 3 species all over the world. White clover is an excellent forage grass, rich in protein and minerals, cold-resistant and heat-resistant, and can adapt to both acidic and alkaline soils. It is a promising species in this genus in China. It can be used as green manure, bank protection grass seeds, lawn decoration, honey source and medicinal materials. The occasional special variant has four leaves which mean "Lucky Grass". Red clover, white clover and miscellaneous clover are widely cultivated in China.

Clover seeds are small, so they should be carefully prepared before sowing. First of all, deep ploughing should be carried out to remove stumps, construction waste, grass roots and other sundries. The lawn planting in the courtyard is often carried out after the construction is completed. Therefore, there are wastes such as cement, sand, mortar, bricks, tiles and decorative materials in the site, which must be removed and backfilled with garden soil. Secondly, soil treatment should be carried out to eliminate weeds. After deep ploughing and cleaning, most of the grass roots and vegetative propagules have been removed, but the weed seeds and some vegetative bodies are still in the soil. When the conditions are suitable, the weed seeds will germinate again, which is harmful to the lawn. Therefore, the turf bed should be treated with soil. If the construction period is not tight, the weeds can be exterminated after watering. If the construction period is tight, soil fumigation combined with soil disinfection can be used to treat weed seeds. Three-leaf seedlings grow slowly and are vulnerable to weeds, so soil treatment is very important. Thirdly, shallow tillage should be carried out and organic fertilizer or compound fertilizer should be applied in combination with shallow tillage. Fourthly, harrowing and grinding should be carried out, and fine soil preparation should be carried out to make the flat bed smooth and smooth, thus creating conditions for sowing.