Efficient cultivation techniques of broccoli

Green cauliflower, also known as broccoli, tender cauliflower and broccoli, is not only tender, delicious, nutritious, but also adaptable and easy to cultivate. it is a kind of nutrition and health care high-grade vegetable with great development prospect. The main planting techniques are as follows:

Cultivation season

Green cauliflower can be cultivated in spring and autumn. Spring planting is more than raising seedlings in sunny beds in mid-late January, with a seedling period of 50 to 60 days, planted in the open field in the middle and late March, and harvested in the middle and last ten days of May; in autumn, sowing and raising seedlings in the first and middle of July, planting in the field in the first and middle of August, and harvest in the middle and late October.

Soil preparation, fertilization and planting

Green vegetable peanuts grow strongly and need a large amount of fertilizer, so they must be combined with soil preparation to apply sufficient basic fertilizer; usually 5000 kg per mu of high-quality ring fertilizer, 500 kg to 1000 kg of rotten dung, 30 kg to 40 kg of superphosphate and 50 kg of plant ash. After applying base fertilizer, deep ploughing fine rake, and then leveled to make 1. 3 to 1. A flat bed with a width of 5 meters. When the green cauliflower seedlings grow to 5 to 6 true leaves, usually 2 rows are planted in each row, the plant spacing is 30 to 40 cm, and the planting density is about 2500 plants per mu; early-maturing varieties can be properly densely planted, with about 3000 plants per mu.

Fertilizer and water management

Green cauliflower likes fertilizer and water, and topdressing and watering by stages is the key to high quality and bumper harvest. Topdressing varieties are mainly nitrogen fertilizer, enter the flower head formation stage, properly increase the application of phosphorus and potassium fertilizer to promote the rapid growth of the flower head; green cauliflower top and lateral flower heads are harvested many times, and should be fertilized in time after each harvest in order to improve the growth of the lateral flower head. Green cauliflower needs a large amount of water, so it should be watered in time in the rosette and bulb formation period to keep the soil moist; in rainy areas or seasons, timely drainage to avoid stagnant water retting roots.

Harvest

It is better to harvest green cauliflower when the bulb at the top of the plant is fully enlarged and the bud is not yet open; too late harvest is easy to cause loose balls and flowering. When harvesting, cut off the lower part of the flower bulb with a flower stem of about 10 cm. After the terminal flower bulb is harvested, the axillary buds of the plant germinate and rapidly grow into lateral branches, and the top of the dry lateral branch forms a rosette, that is, the lateral flower bulb; when the lateral bulb grows to a certain size and the bud has not yet opened, it can be harvested again. In this way, the harvest can usually be continued for 2 to 3 times.