Winter management of wheat field interplanted with scallions

Zhangqiu City, green onions interplanting wheat area is relatively large, this part of the wheat field is generally larger, and irrigation is timely, soil moisture is generally better than other wheat fields. For the management of this part of the wheat field, pay attention to a few points: first, according to local conditions, for the wheat field harvested green onions after autumn, it is necessary to rake and rake the buried wheat seedlings in time. In wheat fields where green onions are not harvested, it is necessary to prevent the vigorous growth of wheat seedlings, so as to avoid greater damage to wheat seedlings after harvesting green onions in the future. Second, strengthen monitoring and timely prevention and control of diseases and insect pests. At present, the wheat field in our city has entered an important period of winter infection of many kinds of diseases and insect pests. Scientific prevention and control should be carried out according to the actual situation and local conditions. Poisonous soil or bait should be allocated to control underground pests to ensure that the whole seedling overwinters. For wheat stripe rust, we should adhere to the strategy of "scouting with medicine, controlling it on the spot, finding one point and controlling one piece" to minimize the source of overwintering bacteria. The fields that reach the standard of sheath blight should be controlled, and general spray control should be carried out in the early spring of next year to reduce the disease base in the middle and later stage. Comprehensive prevention and control of wheat diseases and insect pests should be actively carried out to ensure the control effect. Third, chemical weeding. Since wheat sowing this year, the soil moisture is suitable, the temperature is high, and the unearthed rate of weeds before winter is higher than that of previous years. At present, the age of weeds is young, the drug resistance is low, the wheat seedlings are small, the degree of coverage is low, it is easy to spray weeds, and the safety interval of spraying before winter is long, the control effect is good, and it is not easy to produce favorable time for drug damage, so choose the right way pesticides to carry out chemical weeding. The application time should be carried out when the daily average temperature is not less than 5 ℃. Drugs should be used reasonably according to the occurrence of weeds. The serious occurrence of dicotyledonous weeds such as pig seedling, rice artemisia, wild rape, shepherd's purse and so on can be controlled by superstar and wheat sickle, and the serious occurrence of Monocotyledon weeds in Monocotyledon fields such as Niang Mai, wild oat and so on. Puma or oat can be used to control.