The latest course of field management techniques and methods of cauliflower

Cauliflower is a common vegetable in summer, with the deepening of people's understanding of it, its sales continue to increase, cauliflower cultivation is relatively simple, but there will inevitably be a variety of problems. The following editor will give you details of the field management techniques of cauliflower. Let's take a look.

1. Seedling stage management

The seedling stage refers to the period from the unearthed or fixed seedlings to the period before the flower stalk begins to appear, which belongs to the vegetative growth stage of cauliflower. At this time, the seedling stage is in the season of drought and little rain, so it should be watered in time to ensure that the water content of the soil is between 60% and 70%. The water should be watered thoroughly, and the soil should be watered again when the soil is almost dry. The seedling stage of cauliflower is relatively short, about 40 days, fertilization should be done as soon as possible, the method of hole application or furrow application can be used, 25-40 kg compound fertilizer is applied per mu, fertilizer and water management at seedling stage is combined with ploughing and weeding, and the depth of intermediate ploughing is about 10 cm. Weeding hoes should not be too close to the seedlings to avoid damage to the seedlings, generally need to be ploughed and weeded 1-2 times.

2. Bolting stage

Cauliflower bolting period is more sensitive to water, if lack of water will delay bolting, or even will not bolting, affecting the flower bud feed, head development, thus affecting the yield of cauliflower. At this time, the soil should be fully watered to make the soil moist, usually once a week, and the nutrients needed during the bolting period of cauliflower are relatively large, so it is necessary to top fertilize the cauliflower at this time. Generally, fertilizing is carried out at the beginning of the bolting and buds, mainly with quick-acting chemical fertilizer, combined with watering to improve the utilization rate of fertility.

3. Flower bud stage

The flower bud stage refers to the period from the flower bud differentiation to the end of picking, usually in June-September every year, when it is the high temperature and rainy season, so irrigation should be determined according to the situation of Rain Water, and it is better to keep the soil moist. In case of continuous overcast and rainy weather, drainage should be carried out in time to reduce diseases and insect pests and bud drop. Fertilizer should be applied once in 5-10 days of picking, and about 45 kg of high concentration compound fertilizer should be applied per mu.

4. Pest control

The main diseases of cauliflower are leaf spot, leaf blight and rust, all of which are fungal diseases, which generally occur from August to September. Bordeaux solution and carbendazim can be used to control leaf spot, which can be sprayed every 7-8 days for 2-3 times, and thiophanate-methyl can be sprayed every 10-15 days. Rust can be prevented and treated with enemy demulsified oil, sprayed once every half a month or so, for 2 to 3 times. Insect pests are mainly red spiders and aphids, aphids can be controlled with dimethoate emulsion, once a week, until the first half of the harvest stopped, red spiders can also use dimethoate emulsion control, once a week, also stop using drugs 10 days before harvest.

The above is the introduction of cauliflower field management technology, hope to help you, want to know more related knowledge, please follow us.