The new seeds of vegetable seeds have a great influence on agricultural production. Farmers' friends can use the methods of seeing, squeezing, biting and tasting to judge the new seeds of vegetables. The new seeds are generally smooth and shiny, and the nose smells the inherent taste of the plant itself. The Chen seeds are the opposite. The specific identification methods are as follows: onion, onions, leeks and other onion vegetable seeds: fresh onion, onion new seed skin shiny, dark-black, with the original varieties of spicy taste, Chen seeds the opposite. The new seed of leek has a wrinkled, shiny, and white spot on the seed coat. The seeds of Chen were not shiny. The “white frost†was attached to the outside of the seed coat and the umbilicus was yellow from the white pop. Seeds of cruciferous vegetables such as cabbage and radish: The new seed has a smooth epidermis and a rich odor. Oil pressure overflows from the fingernail and the seeds are flaky. The seed coat is light yellowish green or yellowish green. Chen's seed is dull in appearance, sometimes with a salty cream on the epidermis, easily detached with heavy nail pressure, and yellow cotyledons. Spinach seeds: The new seeds are yellow-green with a scent and the internal starch is white. The Chen seeds were yellowish or grayish yellow with a musty smell. The starch inside the seeds was grey. Carrot Seeds: The new seeds are yellow-green, with a clear odor and white kernels. Chen's seed is yellow or dark yellow and loses the inherent aroma of carrots.