Stone drop seed is actually dill seed, is a medical herb, alias fennel, wild fennel, flower incense, belongs to the umbrella flower family chrysanthemum cleft leaf parsley genus, half sunshine herb, plant height 1.5 meters, early August sowing, harvested in mid- to late June of the following year, the whole life span of 300 days, mu yield (seed) about 200 kilograms. Its main cultivation measures: First, careful seedling. Generally choose the higher terrain, soil fertility of the better plots for the seedbed, the amount of seed for 0.2-0.25 kg / mu, seedbed and field ratio of 1:100-120. before sowing, first carefully prepare the ground, so that the soil is deep, ripe, fine, penetration, and then carry out soil treatment, with 4 kg / mu of furadan with fertilizer into the prevention and control of underground pests. Seeds mixed with fine soil evenly sown, after sowing with a large chaff or wheat grass cover moisturizing, every evening to replenish the water, to ensure that the soil moisture content of more than 70%. Usually around mid-September that is, seedlings 6 leaf period for planting, in order to facilitate the growth of roots, planting to 13-17 cm can be planted 2000-2500 plants / mu as a standard, planting live after thin water manure or fertilizer watering to promote growth. Second, reasonable dense planting. Generally in the Spring Festival after the use of dang way for field transplanting, planting full 1600-1800 plants / mu, plant spacing for 43-50 × 83 cm, transplanting with carbendazim 2000 times liquid dipped roots to prevent late disease, planting on the water after the live tree, and later lightly shelved to the field to keep the field soil normal black as appropriate. Third, scientific fertilization. Seedling before the general application of human and animal manure 20-25 quintals / mu, 100 kg of ammonium carbonate / mu, calcium superphosphate 100 kg / mu, 50 kg of compound fertilizer / mu as a base fertilizer. Fake planting field application of human and animal manure 20-25 quintals / mu, fake planting period and then the application of ammonium carbonate 100 kg / mu. Big field application of human and animal manure about 20 quintals / mu, compound fertilizer 25 kg / mu for base fertilizer. Fertilizer according to branching fertilizer, shoots fertilizer, regeneration fertilizer is applied 6 times, that is, every 20 days to apply 1 fertilizer, in the first re-watering in the distance from the roots of the plant 20-26 cm at the ammonium carbon 25 kg / mu, every 20 days and then 1 time until the plant is now disk, thereafter, every 20 days to apply urea 15 kg / mu. Fourth, disease and insect control. Dill pests and diseases are mainly: root rot, stem rot, yellow wilt and aphids, cut rootworms, etc., the production of the main seedling spray polymyxin antiseptic, and do a good job of aphids in time to check and control work. Five, timely harvesting. Dill flowering longer, seed maturation time varies, must be picked in batches, dill generally in mid-June began to enter the harvest period one after another, the end of the harvest in early July, the first mature first harvest, to ensure that the seeds are full to improve the quality of dill seed and listing prices.