Field management of Ziyunying in autumn and winter

Planting Artemisia mandshurica can provide necessary organic fertilizer for crop production, which is one of the basic ways to develop sustainable modern agriculture stably. Planting Artemisia mandshurica can not only improve soil structure and increase soil organic matter content, but also reduce crop chemical fertilizer application, reduce pests and diseases, reduce production cost, increase crop yield, protect ecological environment, improve soil fertility, reduce the share of medium-and low-yield fields, and lay a solid foundation for agricultural scale production of pollution-free food, green food and organic food. Ziyunying autumn and winter field management is as follows: first, do a good job of seedling protection, seedling protection of the field management work. The late rice fields are drained and waterlogged before harvest to keep the soil dry and unburnt. Leave the grain about 20 centimeters when cutting, and move the harvester carefully. Shade with a thin straw coat after the harvest. If planting in dry land or orchard does not rain for a long time, it should be watered to protect seedlings. Second, open the "three ditches" well, which is conducive to drainage and irrigation. The "three ditches", that is, perimeter ditch, waist ditch and plot ditch, should be opened in time after late rice harvest. The perimeter trench is 25 cm deep, the waist groove is 21 cm deep, the district groove is 18 cm deep, and the district is 3 mi mi 4 m wide. So that the ditch should be straight, the bottom of the ditch should be flat, the ditch should be communicated, and the trench water in the district should enter the waist ditch and surround the ditch. In order to drain and irrigate quickly, so that the dry mud in winter is not white, the rain is not stained, and the rain is dry over the fields. In case of drought in autumn and winter, we should always pay attention to keep the soil moist to prevent the field from drying and cracking. Pour "horse race water" and drain it 12 hours after irrigation. Third, fertilize. Take the application of phosphate fertilizer, potassium fertilizer and organic fertilizer as. 1. 15 kg of phosphate fertilizer or 5 kg of compound fertilizer per mu 10 days after sowing. 2. Before and after "the Winter Solstice", plant ash, pig and cattle manure were used to mix soil and miscellaneous fertilizer. 400 Mu will be irrigated with 500 kg of water or sprinkled after rain as overwintering fertilizer. 3. Weak seedlings and low-yield fields "the Beginning of Spring" were applied with urea of 1kg / mu to promote the growth of stems and leaves of Artemisia mandshurica. Fourth, pest control. Under normal circumstances, Ziyunying does not suffer from diseases and insect pests, but there are also diseases and insect pests under special bad habits and bad climate. The main disease is Sclerotinia sclerotiorum (commonly known as "chicken nest plague"). 0.5 kg of sulfur powder and 5 kg of lime were used in the disease center. The main pests of Ziyunying are aphids, thrips, Spodoptera litura and pod borer. General insecticides such as 18% insecticidal double water agent were used for control.