Planting characteristics of stone oak

In fact, dill seed is a medical medicinal material, alias fennel, wild fennel and floral fragrance. It belongs to Celastrus of Umbelliferae and is a semi-diurnal herb with a plant height of1.5m. It is sown in early August and harvested in the middle and late June of the following year. The whole growth period is 300 days, and the yield per mu (seed) is about 200 kg. The main cultivation measures are as follows: 1. Generally, the plots with higher terrain and better soil fertility are selected as seedbeds, and the amount of seeds used in the field is 0.2-0.25 kg/mu, and the ratio of seedbeds to fields is 1: 100- 120. Before sowing, the soil should be carefully prepared to make the soil deep, ripe, fine and thorough, and then the soil should be treated, and 4 kg/mu of carbofuran should be applied with fertilizer to prevent and control underground pests. The seeds are mixed with fine soil and sown evenly. After sowing, cover with bran or wheat straw to keep moisture, and replenish water every evening to ensure that the soil moisture content is above 70%. Follow-in is usually carried out around mid-September, that is, the 6-leaf stage of seedlings, which is beneficial to root growth. In the follow-up, the standard is that 13- 17cm can plant 2000-2500 plants/mu. In the follow-up, dilute water fertilizer or fertilizer water can be used to promote the growth of living trees. Second, reasonable close planting. Generally, after the Spring Festival, it is transplanted and knocked down in the field, 1, 600- 1, 800 plants/mu, and the plant spacing is 43-50×83 cm. When transplanting, dip the roots with 2000 times carbendazim solution to prevent later diseases. After planting, put the tree on the water and gently put it aside to keep the soil normal and not black. Third, scientific fertilization. Before seedling raising, 20-25 tons of human and animal manure, ammonium bicarbonate 100 kg/mu, calcium superphosphate 100 kg/mu and compound fertilizer 50 kg/mu are generally applied as base fertilizer. 20-25 dwt/ mu of human and animal manure is applied in the following crop, and 100kg/ mu of ammonium bicarbonate is applied in the following crop. About 20 tons/mu of human and animal manure and 25 kg/mu of compound fertilizer are applied in the field as base fertilizer. According to the branching fertilizer, bolting fertilizer and regenerative fertilizer, topdressing is divided into six times, that is, every 20 days 1 time. After the first rehydration, 25kg/ mu ammonium bicarbonate is applied at the place 20-26 cm away from the root of the plant, every 20 days 1 time until the plant is in full bloom, and then urea 65438 is applied every 20 days. Fourth, pest control. The main diseases and pests of dill are root rot, stem rot, verticillium wilt, aphid and root cutter. In production, carbendazim is mainly sprayed at seedling stage to prevent corrosion, and aphids are investigated in time. Fifth, timely harvest. Dill has a long flowering period and different seed maturity time, so it must be picked in batches. Dill generally enters the harvest period in mid-June and ends in mid-July to ensure full seeds and improve the quality and market price of dill seeds.