Seed price and planting method of broccoli

Broccoli, also known as green cauliflower, green cauliflower, broccoli, etc., is a Brassica-biennial herb of the cruciferous family. It originated from the eastern coast of the Mediterranean Sea. It was first planted in Taiwan Province after it was introduced into China at the end of the 19th century. Later, it was also cultivated in Guangdong, Fujian, Yunnan, Beijing, Shanghai and other places. Now it is widely cultivated in the north and south of our country. Let's take a look at the seed price and planting methods of broccoli.

How much is the broccoli seed per gram?

The price of broccoli seeds is about 1220 yuan per gram, but it varies greatly due to the quality, variety, origin and market of the seeds. In the production of broccoli, varieties with strong plant growth, dark green buds, few burnt buds, round flower heads, few lateral buds, small buds, large flower heads, disease resistance, heat resistance, cold tolerance and wide adaptability should be selected. such as excellent, dragon green, landscape, Yuguan, Oriental Lubao, Wanlu, Lvxiu and other varieties, but must meet the national second-class seed standards before use.

What kinds of broccoli do you have?

1. Excellent: early-maturing varieties, with a prominent mushroom-shaped top, dark green in color, a single bulb weighing 350 to 400 grams, tight bulbs, fine buds, good merchandise and few lateral branches, suitable for cultivation in early spring and autumn.

2. Future: early-maturing varieties, suitable for close planting upright varieties, rosette mushroom-shaped, thick green color, full shape, good commerciality, suitable for autumn cultivation.

3. Landscapes: medium-ripe varieties, vigorous growth, large degree of development, single ball weight of about 500 grams, semicircle, tight flower bulb, thin buds, turquoise, poor cold resistance, but strong stress resistance.

4. Green belt: medium-ripe variety, single ball weighs about 500 grams, vigorous growth, good quality, semicircle, main side flower bulb, easy to hollow when fertilizer and water is easy to be hollow, high temperature and rain is easy to appear all over the sky, frost is easy to purple.

5. Holy green: middle and late maturing varieties, vigorous growth, cold tolerance, single ball weight of about 500 grams, semicircle, fine buds, thick green, not easy to hollow.

Planting conditions of broccoli

1. Light: broccoli likes sufficient light, and when the light is sufficient, the plant grows healthily, and it can form a strong nutrient body, which is conducive to photosynthesis and nutrient accumulation, so that the flower ball is compact and compact, and the color is bright green and good quality. but too much sunshine in midsummer is also not conducive to growth and development.

2. Temperature: broccoli has strong cold and heat tolerance. In the range of 5-20 ℃, the higher the temperature is, the faster the growth and development is. The optimum temperature for germination, seedling stage, rosette stage and rosette stage are 20-25 ℃, 15-20 ℃, 20-22 ℃ and 15-18 ℃, respectively.

3. Moisture: broccoli needs more water in the growth process, especially in the period of vigorous leaf growth and flower head formation, but rainy or high soil moisture at seedling stage can easily cause black rot, black spot, etc., and the field capacity of soil moisture is 70% and 80% during flower head formation.

4. Soil: broccoli is suitable to be planted on loam and sandy loam with good drainage and irrigation, deep plough layer, loose and fertile soil and strong water and fertility conservation. The range of PH is 5.5-8, and 6 is the best. During the whole growth process, the ratio of N, P and K is 14:5:8.

Sowing methods of broccoli

1. Sowing time: the sowing time of autumn double mulching cultivation of broccoli is early July, overwintering cultivation in solar greenhouse from late July to August, early spring cultivation in solar greenhouse from early September to early October, early spring cultivation in plastic greenhouse and small arch greenhouse in November, spring plastic film cultivation in January.

2. Seed soaking treatment: the broccoli seeds were soaked in 33 ℃ warm water for 15 minutes and stirred continuously, stopped when the water temperature dropped to 20 ℃, continued to soak in warm water for 4 hours, rinsed with clean water and then germinated.

3. Seed germination: soaked seeds of broccoli are wrapped in wet cotton gauze and germinated at a temperature of 30 ℃. Rinse with clean water once a day and sow when 60% of the seeds are white.

4. seedling bed selection: the seedling stage of broccoli is relatively short, and the seedling bed is selected in the fields with high terrain, convenient drainage and irrigation, soil rich in organic matter, no cruciferous vegetables or rice in the past two years, and the direction of the seedling bed should be north-south.

5. Apply sufficient basic fertilizer: turn deeply 15-20 days before sowing broccoli, apply 15 kg of ternary compound fertilizer plus 5 kg of superphosphate or splash 2500 kg of rotten acquaintance manure and urine in the first 7-10 days, dig and rake the land, and make a seeding bed about 1.2m wide.

6. Dressing and sowing: before sowing broccoli, the seedling bed was watered once and 1000 times phoxim and other chemicals were applied. When sowing, the seeds were mixed with an appropriate amount of sand and evenly sowed in the seedbed. After sowing, they were suppressed with a shovel, and then sprinkled with 0.1% carbendazim and dimethazone.

7. Sunshade and heat preservation: after the broccoli was sown in summer, the seedling bed laid a layer of sunshade net, set up a small arch shed, then covered with a layer of sunshade net, carried out double-layer sunshade, moisturizing and cooling seedlings, and used a layer of plastic film and a layer of greenhouse film in winter and spring to cover and keep warm seedlings.

The planting method of broccoli

1. Soil preparation and fertilization: the root system of broccoli is relatively shallow, so it is required to plant in the land of fertile soil, water and fertilizer conservation. Generally, 100 kg of organic fertilizer, 10 kg of urea, 25 kg of compound fertilizer and 2 kg of borax are used as base fertilizer per mu. Cultivated land rake flat ditch fertilization.

2. Reasonable planting: when the growth of broccoli reaches 6 leaves, the seedling can be transplant when the soil temperature of 10 cm is more than 10 ℃ and the seedling age is 30-35 days. The transplanting seedling can not exceed the cotyledon mark, let alone bury the growing point, and pour water after transplanting.

3. Intermediate ploughing management: within 2 days of transplanting, broccoli should inspect the field and replenish seedlings in time, give sufficient nutrients and water, loosen the soil, keep the lower soil moist, properly intertillage, eradicate weeds, generally intertillage once, subsoiling combined with topdressing once, artificial weeds twice.

4. Topdressing method: 5 kg of urea, 10 kg of potassium sulfate, 25 kg of compound fertilizer and 10 kg of potassium sulfate were applied in broccoli planting for 7-10 days, and potassium dihydrogen phosphate, boron or 0.05-0.10% borax and ammonium molybdate solution were sprayed at the initial stage of flower bulb formation.

5. Irrigation methods: broccoli needs a little more water than other crops. in addition to properly controlling soil moisture in the seedling stage, sufficient water should be ensured in other growth and development stages, generally using artificial furrow irrigation or mechanical sprinkler irrigation, preferably with advanced sprinkler irrigation equipment.

6. Remove the lateral branches: the top bulb of broccoli is a special variety, and the lateral branches should be removed before the appearance of the bulb. The lateral branches of the varieties used both at the top and the side should be removed, generally leaving 1 or 2 strong lateral branches in the upper part, so as to reduce nutrient consumption.

7. Temperature management: the normal temperature of broccoli is about 25 ℃ when the flower bulb begins to form, and the high temperature of 30 ℃ in the field can not exceed three days in a row. Temperature control measures should be taken for more than three days, such as artificial leaf covering, mulch cover, artificial rainfall and so on.

8. Pest control: broccoli is prone to many kinds of diseases and insect pests. After transplantation, we should investigate and prevent the occurrence of diseases and insect pests in time, spray internal inhalers as preventive agents, fumigation and contact killing as control agents, and use green and pollution-free pesticides for prevention and control.