How to buy corn seeds?

How to buy corn seeds? What should I pay attention to when buying corn seeds? Please also know the netizens to help introduce a wide variety of corn, among which there are bad merchants to sell false seeds and inferior seeds for profit, so the farming network has sorted out the methods of selecting and purchasing corn seeds, which are listed below for netizens' reference. Method 1. The differences in size, color, grain shape and grain shape of corn seeds are small, and they are very similar, and most of these corn seeds have high purity. Randomly take 100 corn seeds, their size, color, grain shape, grain shape difference of up to 82, indicating that the hybrid rate of this corn seed is more than 20%, such seeds, generally do not buy. If most of the seeds are different from the inherent color, grain shape and grain shape of the varieties you know, there is a good chance that the seed is fake or inferior. Method 2. The seeds treated with coating agent can be selected, which can save the control of insect pests after sowing, which is beneficial to seedling uniformity and seedling agent. Method 3, choose the units with complete "three certificates" and "one photo" to buy seeds, and first look at whether the sales units have "three certificates and one photo" when buying corn seeds. Generally speaking, the quality of seeds sold by units with "three certificates and one photo" is more reliable. The so-called "three certificates and one license" refers to the "production license", "seed qualification certificate", "seed management license" issued by the seed department and the "business license" issued by the administrative department for industry and commerce. When you look at the "three certificates and one license", we should also pay attention to the time of issuing the license, whether the legal representative is consistent, and so on. Method 4. Where the corn seeds are wet, they may become moldy and deteriorate. When buying corn seeds, you can first save your hand into the seed bag and judge the dryness and humidity of corn seeds according to the direct feeling. The feeling of tasteless and clear min is relatively dry; on the contrary, there is a gloomy and damp infection and incorrect taste, indicating that the corn seeds are wet. In addition, you can grab some corn seeds and rub them in your hands to make a crisp and rustling sound that is dry, otherwise it is wet. Method 5. Look at whether the seeds are moldy, rotten, worm-eaten and darkened in the process of preservation. Opening the seed bag has a sour mildew taste, indicating that the corn seed has gone bad and the germination rate will not be too high. Do not buy it easily. In field production, the seed germination rate is less than 85%, most of them can not be used, or increase the sowing rate. Method 6. According to the law of high yield and load culture, in order to obtain high yield of maize, in addition to increasing the input of water and fertilizer, it is necessary to appropriately increase the sowing amount and density of maize seeds. In general, only about four kilograms per mu of hybrids can ensure the density and realize the requirements of evenness and evenness of seedlings. Method 7. When purchasing seeds, ask for variety description from the seed seller as far as possible, in order to accurately grasp the characteristics of hybrids, and do a good job in management because of the characteristics of varieties, so as to ensure high yield. Method 8. When purchasing seeds, we must ask for and properly keep the seed retail bills, so that if there is something wrong with the seeds, we can feedback the losses to the seed sellers and obtain compensation. Method 9. After purchasing seeds, keep them properly and pay attention to drying regularly to prevent low seed moisture and prevent mildew and insect pests, and improve seed germination energy and germination rate. How to accelerate germination of Maize Seeds and how to Control Maize aphids