Planting time and method of celery

The planting time of celery can be planted all the year round. Sowing and raising seedlings: the amount of seeds used in the field is about 500 grams per mu, water is watered once every morning and evening in dry weather, and light dung water is applied every 5-7 days. Soil preparation and fertilization: appropriate amount of urea, phosphate fertilizer, human and animal manure can be applied per mu of land. Colonization: when the seedlings grow to 12-15 cm. Field management: manure water should be applied frequently after planting has survived. Prevention and control of diseases and insect pests: prevention and control with benzen zinc, carbendazim, enemy killing and so on.

Planting time of celery

1. Planting time of spring celery

The main results are as follows: (1) the sowing time in the open field in the northern region is from January to March, the planting period is from March to April, and the harvest time is from May to July, while the sowing time in the Yangtze River basin is March.

(2) if sowing too early, the seedlings will easily pass through the vernalization stage after suffering a certain low temperature, and then cause immature bolting. If sowing too late, the late stage will enter the hot summer, which will affect the quality and yield.

2. Planting time of summer celery

After breaking frost in spring, seedlings were raised in the open field, and then planted in the first ten days of June-July, and then harvested and put on the market from August to September. In the hot and rainy season, summer celery has poor growth, many dead seedlings and low yield, so it is not suitable to plant in a large area.

3. Planting time of autumn celery

The main results are as follows: (1) the sowing time in the open field is from June to early July, the planting period is from August to early September, and the harvest time is from October to November.

(2) the sowing time in the Yangtze River basin is from early July to early September, the harvest time is from October to December, and the late sowing ends before bolting in the second year.

4. Planting time of winter celery

The sowing time of the open field in the Yangtze River basin and the south is from September to November, and the harvest time is from December to April of the following year, while the north can be covered with plastic arch shed for planting.

2. Sowing and raising seedlings

1. Sowing quantity

The main results are as follows: (1) the amount of seeds needed in the field is about 500 grams per mu, and 2 kilograms of celery seeds can be sown on the seedling bed per mu. When sowing, the seeds should be germinated with old bran ash or dry soil, then evenly sown, gently pat the border surface after sowing, and then sprinkle water with a spray pot.

(2) it needs to be covered with plastic arch shed in winter and sunshade net to cool and prevent rain in summer.

2. Seedbed management

In dry weather, water can be irrigated once a day in the morning and evening, wait for the seedlings to grow and start topdressing, apply light dung water every 5-7 days, and pay attention to the prevention and control of aphids.

III. Soil preparation and fertilization

1. It can be planted in sandy soil which is rich in organic matter and strong in water and fertilizer conservation, and 150 kg of quicklime can be applied per mu.

2. then turn the soil deeply into a border with a width of about 1.67 meters, and apply 20 kg of urea, 40-50 kg of phosphate fertilizer, 10-15 kg of potash fertilizer, 100 kg of vegetable blight and 200 kg of human and animal manure per mu, and then turn it shallowly into the soil and flatten it out. Wait 4-5 days for colonization.

IV. Colonization

It can be planted when the seedling age is 50-60 days and the seedling grows to 12-15cm. It needs to be sprayed once to kill the enemy before planting. 3-4 hours before pulling the seedling, the soil needs to be watered, and then the planting row spacing is 16-26cm, and the clump spacing is about 1cm. Each clump can plant 4-5 plants, planting while watering.

V. Field management

The main results are as follows: 1. After the seedlings are planted, they need to be watered once every morning and evening, and pay attention to checking the seedlings. After the seedlings survive, it is necessary to apply dung water frequently and keep the soil moist.

2. shallow ploughing is needed for 2-3 times before closing the row, generally in the high temperature and dry season, in the early growth stage, it is necessary to cover the sunshade net on the greenhouse or small arch shed, or cover the forage to shade.

3, especially in dry weather, ditch irrigation can be carried out when the water temperature is low in the morning and evening, during which the water should not be filled with water on the compartment, and the water should be discharged in time after wetting, so as to ensure the normal growth of celery.

VI. Prevention and control of diseases and insect pests

The common diseases of celery are spot blight and spot disease, which can be controlled by Dysen zinc, carbendazim or chlorothalonil, while the common pests are aphids, which can be killed by enemies or dimethoate.