Cultivation techniques of cauliflower during planting time

Planting time: planting in spring and autumn, transplanting after frost fall in early autumn and winter. Planting method: close planting of cauliflower can give full play to population advantages, increase the number of tillers, bolting and flower buds, achieve the purpose of increasing yield, appropriate deep planting is conducive to plant survival and prosperity, root water should be irrigated after planting, and soil moisture should be kept before autumn seedlings grow. During the growth period, according to the growth and soil consolidation, intertillage 3-4 times, combined with deep soil to increase winter fertilizer, usually actively control diseases and insect pests.

Planting crops needs to be in accordance with the growth law of the crop, early planting of unsuitable climatic conditions, seed germination rate will be relatively low, planting late, missed the best time to grow, affecting the yield of cauliflower. Therefore, we must do the right thing at the right time.

Planting time of cauliflower

The main results are as follows: 1. It is better to plant cauliflower in spring and autumn. The temperature in the greenhouse is maintained at 25 degrees during the day and not less than 12-15 degrees at night. Seedlings can emerge in one week. After emergence, the temperature in the greenhouse gradually decreases to adapt to the external climate and prevent the seedlings from overgrowing.

2. There are two most suitable seasons for transplanting cauliflower: one is the early autumn period, that is, the period from flower bud picking to autumn seedling germination, and the other is the winter dormancy period from autumn seedling withering after winter frost to the winter dormancy period before spring seedling germination in the following year.

Cultivation techniques of cauliflower

1. Reasonable close planting: close planting of cauliflower can give full play to population advantages, increase the number of tillers, bolting and buds, and achieve the purpose of increasing yield. Generally adopt wide and narrow row cultivation, wide row 60 cm 75 cm, narrow row 30 cm 45 cm, hole distance 9 cm 15 cm, planting 2 plants per hole, planting 45000 ~ 75000 plants per hectare, and the peak yield period reaches 1.5 million ~ 2.25 million plants / ha.

2. Appropriate deep planting: the root group of cauliflower grows from around the shortened stem, with one layer a year, and the root position moves up year by year from bottom to top, so proper deep planting is beneficial to plant survival and prosperity, and the suitable planting depth is 10-15 cm. Root water should be watered after planting, and the soil should always be kept moist before autumn seedlings grow, so as to facilitate the growth of new seedlings.

3. Cultivating soil in middle ploughing: cauliflower is a fleshy root system, which needs fertile and loose soil environmental conditions in order to be beneficial to the growth and development of the root group. During the growth period, intertillage should be carried out for 3 times according to the growth and soil consolidation, and the first time should be carried out when the seedlings are unearthed. The second to fourth times in the bolting stage combined with mid-tillage to cultivate the soil.

Propagation methods of cauliflower

1. Ramet: the split propagation of cauliflower is the most commonly used propagation method, one is to dig out all the mother plant clusters and replant them, and the other is to dig out part of the plants from one side of the mother plant cluster to make seedlings, leaving them to continue to grow, but the roots should be cut down as little as possible when digging and dividing seedlings.

2. Cutting: after the cauliflower is harvested, if the bract is bright green and the growing point under the bract is obvious in the middle and upper parts of the flower, cut it off about 15 cm above and below the growing point, cut it into the soil in a slightly curved shape, and root and sprout after about 1 week.

3. Sowing: cauliflower can get seeds by artificial pollination, using fertile vegetable garden soil as seedbed when sowing, soaking seeds in 25 ℃ warm water for 48 hours, covering soil 2 cm after sowing, usually emergence in one week, gradually lowering the greenhouse temperature to adapt to the external climate after emergence.

Four necessary things for cauliflower

1. Clearing ditches and discharging stains: cauliflower is relatively delicate, afraid of both flooding and drought. Therefore, deep trenches should be opened before overwintering, so that the ditches communicate with each other and the rain stops dry.

2. Cultivate the soil to protect the bag: after the plant on the ground withered in winter, cultivate the soil to protect the bag, first cut off the withered plant, properly apply miscellaneous fertilizer and pond mud fertilizer on the root cluster, and then cultivate the fine soil for 10 cm.

3. Pest control: in order to kill the eggs and bacteria of overwintering insects, the weeds and residual leaves around the vegetable field are completely sprayed with 0.5 Baumedo Shiyukyu mixture once, and then sprinkled with quicklime 30-50 cm per mu and sprayed with 600 MFMI 800 to prevent soil from hardening.

4. increase the application of winter fertilizer: combined with deep ploughing of soil, 1000-1500 kg of rotten pig and cow manure per mu, or 2500-3000 kg of soil fertilizer, plus 30-35 kg of superphosphate.

The cultivation of cauliflower should not only respect the growth law of cauliflower, but also be planted at an appropriate time, and the planting technology of cauliflower is also very important. The editor is here to remind you that planting is a business that needs to be managed attentively. Don't wait until cauliflower is cold before you regret it.