The weather is cold in winter.In addition to the traditional methods, there are the following new methods to ensure the safe wintering of rapeseed: 1. Add phosphorus and potassium fertilizer. Phosphorus can promote rape root development and enhance resistance; potassium can improve rapeseed's ability to resist cold, disease and fall. Rapeseed should be added with phosphorus and potassium fertilizers in a timely and appropriate manner, which can prevent the plants from being tender and succulent, and enhance the ability to resist cold and frost. 2. Cultivate soil and cover fertilizer. At a daily average temperature of 0 ° C, pick up soil and cover the soil with fertilizers between rapeseed rows, large seedlings bacon, strong seedlings, and small seedlings to cover the roots. Knock them with rotten soil fertilizers evenly. Covering this way can stably and gently reduce water evaporation and prevent the vegetable seedlings from directly receiving cold air damage. Soil fertilizer is the source of nutrients for spring hair, which is conducive to strong seedlings and high yield. 3, irrigation and freezing. The rapeseed field is irrigated with water once before the cold current, which can stabilize the temperature and supply the water during the wintering of the vegetable seedlings to effectively prevent dryness.After freezing, the irrigation should be carried out at noon on a sunny day with cold tails and warm heads to make the surface of the frozen protrusion The layer is allowed to sink to ensure that the root of rapeseed is in close contact with the soil, which is conducive to the maintenance of seedlings and roots. 4. Foliar spraying. Rape spraying fertilizer before winter, the key is to spray a new high-fat film combined with phosphorus and potassium fertilizer, which can increase the concentration of cell fluid, reduce freezing point, and enhance cold resistance. Spraying generals to protect trees during wintering is beneficial to prevent frost and protect seedlings. 5. Cover grass protection. Before the frost damage, a layer of crop straw is covered on the rape leaf surface, which can reduce the cold wind from directly attacking the root of rapeseed. It can also be sprinkled with a layer of plant ash on the rapeseed leaf to prevent freezing. 6, control early death. Rapeseed appears early, which not only consumes a lot of nutrients, but also has low cold resistance and is susceptible to freezing damage. For rape that is pumped early, you can spray Kao No. 3, spray evenly to control early water. 7. Management after freezing. After the cold current, check the seedlings in time, find that the frozen seedlings are uprooted, and raise the soil to support the seedlings in time; remove rainwater and snow in the field as soon as possible to prevent waterlogging from hindering the growth of the root system. When thawing, apply rapeseed ash to the rapeseed in time or spray the leaves to protect the generals to protect the rapeseed from overwintering. Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone Sunshade And Thermal Insulation Series Sunshade And Thermal Insulation Series,Black And White Protective Film,Aluminium Foil Double-Sided Sunscreen,Aluminum Foil Woven Fabric Insulation Changzhou Green Nets Co.,Ltd. , https://www.gnshadenet.com
New method to protect winter rapeseed