At the moment, it is the season for cotton preparation. Some unscrupulous traders have also taken the opportunity to start selling fake and shoddy cotton. The majority of cotton farmers must master the following points when purchasing cotton seeds:
According to local conditions, it is necessary to determine the appropriate variety. Each crop variety has its own specific geographical area. Therefore, the selection of good varieties must be adapted to local conditions. For plots with good water and fertilizer conditions and planting pure spring cotton, it is necessary to purchase hybrid insect-resistant cotton with long growth period, lodging resistance and high yield potential. If you engage in wheat field interplanting, you need to buy insect-resistant cotton with short growth period, late sowing, good resistance, high yield and high quality. If the local area is cotton blight and verticillium, you must purchase disease-resistant varieties.
Don't buy scrapped species. The cotton seed of the next year is called Chen. The species is generally not suitable for seed use and should be scrapped. Because the cotton has a high oil content, there is a layer of short velvet on the outside, which is very easy to absorb moisture and damp. Whether it is the seed of Chen, the most reliable method is to identify the seed with germination rate less than 70%, which can not be used for production. It can also be quickly identified by cutting method: first immerse the cotton seed in warm water and wait for it to absorb After moisture (ie, reaching the cotyledon layering), control the excess water, take two samples, 50 samples per sample, and then use a sharp blade to cut across the grain to observe the color of the seed kernel and the oil gland. It is not bright, the oil gland is black, and it is not obvious.
Don't blindly buy "high-priced species." Under normal circumstances, the price of quality fine varieties will be higher than ordinary cotton. However, some breeders and seed dealers have seized the psychology of cotton farmers who mistakenly believe that “the higher the price of cotton is, the higher the quality is, the higher the quality of production.†They will take the opportunity to untest and some common strains, which are touted as high-quality and high-yield. Rare and good varieties that are difficult to buy, and take advantage of the opportunity to raise prices and mislead cotton farmers to buy. Such "high-priced species" can easily mislead people who lack professional knowledge. Remind the majority of cotton farmers, we must calmly treat "high price", after all, "high price" does not mean high yield and quality. Before purchasing "high-priced species", it is best to consult local agricultural technology, seeds and other departments to find out what kind of "high-priced species" can produce high quality, whether it is suitable for local cultivation, and then decide whether to buy, so as not to be fooled.
Do not buy cottonseed for oil extraction. Ordinary cotton varieties can only be used in the third generation, and hybrids can only be used in the first generation. Cottonseed for oil extraction is a heavily mixed cotton seed and is strictly prohibited for production. Years of trials and production practices have proved that the purity and germination rate of pressed cottonseeds are extremely low, generally reducing production by 15%-20% compared to qualified seeds, and fiber quality is greatly reduced. Therefore, advise farmers friends, do not rush to buy cheap cottonseed, so as not to cause undue losses.
It is necessary to purchase a variety of regular cotton seed business units with “certificationsâ€. Because the cottonseed is covered with short velvet, it is difficult to distinguish the name and quality of the seed by the appearance of the seed alone. In order to avoid being cheated when buying seeds, you can't save money and save money, but buy cotton varieties that are not sold by unlicensed operators. In particular, in recent years, some unscrupulous traders have used the banner of “technology to the countryside†to rush to sell low-quality cotton seeds to farmers at high prices. Farmers’ friends should be vigilant. To purchase cotton seeds, you must go to the regular seed business unit, and ask for invoices, and keep them in a safe place. If you find problems with the seeds, you can claim the losses with the purchase invoices.