Because of the tall and stout plant, the celery has a high yield, a long growing period, and a large amount of fertilizer. A sufficient supply of fertilizer and water is a guarantee for the high quality and high yield of celery.

　　 1 , the base fertilizer. Each mu can apply 3000-4000 kg of decomposed organic fertilizer or 1300 kg of dried chicken manure , plus 40-50 kg of superphosphate , 7-10 kg of potassium sulfate , 30-40 kg of ammonium sulfate or 75 kg of compound fertilizer as base fertilizer. After the bottom fertilizer and the soil are fully mixed, the box is 1.5 meters wide, the width of the trench is 0.3 meters, the depth of the ditch is 0.3 meters, and 6 plants are planted at each hole . The row spacing is 15 cm, and 1200 bushes per acre .

　　 2 , base fertilizer. 7 days before planting, 7-10 days after planting, 10% of the Qingshui water or 5 kg of urea per acre can be applied to promote the formation of good roots and restore growth. In the next 40 days, 10 kg of urea or 30-40% of clear manure water can be used for 1-2 times to promote heart leaf growth.

　　 3 , topdressing. 50 days after planting, it begins to enter the critical period of the fastest growth rate and yield. The topdressing should be applied again, and a certain amount of phosphorus and potassium fertilizer should be properly applied to fully meet the needs of celery growth for phosphorus and potassium fertilizer. For the first time, it can be mixed with 15 kg of urea per acre and 10 kg of compound fertilizer. After that, it can be applied 1-2 times for each available urea 10 kg and compound fertilizer 5 kg . Topdressing once a month before harvesting. 10 kg of urea per acre combined with irrigation (because it has been closed, not poured). The yield of celery is very high, and the average yield per mu can reach 5,000 kg or more, and the high one can reach 10,000 kg.

In order to improve the commerciality, the sunshade net can be directly covered on the leaves 10 days before harvesting , so that the leaves become thinner and tenderer.

In the case of good fertilizer and water management, celery has fewer pests and diseases. The main pests are aphids comprehensive rural information sharing, as long as 2500 times over the net or 20% more than 8000 times Comfort can be effective prevention and treatment; another hundred times with 500 bacteria and pass 500-800 times mancozeb, it It can effectively prevent spot blight and leaf spot.