Pay attention to top dressing and anti-freezing barley this winter

According to weather forecasts by the Meteorological Department, the average temperature this winter is slightly lower than usual. In order to effectively prevent the effects of freezing damage and weed damage, the following measures must be taken:

Topdressing and antifreeze For fields with poor soil quality, insufficient base fertilizer application or late sowing date, use the favorable opportunity of high soil moisture to apply seedling fertilizer in time, especially for fields with no-tillage direct broadcast, to prevent freezing damage and soil damage. Apply quick-acting fertilizer in time to promote the growth of barley, generally 3-5 kg ​​of urea per mu is appropriate.

Chemical control and prevention of land plots with prosperous growth or high density can choose chemical control and prevention. The specific method is to reduce the amount of paclobutrazol and mix with mepiperium, or use the compounding agent of paclobutrazol and mepiperium, polyazole·mepiperium, which can prevent the wheat seedling population from increasing too much.

Timely chemical weeding For fields that have not been removed a year ago, chemical weeding should be carried out before jointing. For herbicide spraying, you should choose fine weather. For the control of gramineous weeds in barley fields, it is recommended to use 5% pinoxaden (Aixiu); for broad-leaved weeds, use 20% fluroxypyr (totalon). ) 70ml/mu stem and leaf spray control.

For wheat fields with weak growth or freezing damage, the spring topdressing time should be appropriately advanced for the turning-green jointing fertilizer and booting fertilizer topdressing. The turning-green jointing fertilizer shall be topdressed with about 7.5 kg of urea per mu. For wheat fields with high fertility, sufficient base fertilizer, and vigorous growth, it is necessary to apply less or no nitrogen fertilizer to prevent late maturity and lodging in the later stage. Topdressing 3 kg of phosphorus pentoxide and 2.5 kg of potassium oxide per acre can be used during the returning green jointing period. The stalks prevent falling, promote ripeness and improve quality. Booting fertilizer is applied according to the seedling condition. For fields with less than 250,000 ears per mu, 3~5 kg of urea per mu can be applied at the beginning of earing. In addition, according to the occurrence of diseases and pests in the field, timely control of barley aphids, sheath blight, powdery mildew, head blight and other pests and diseases should be carried out.

Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone