The latest course on planting techniques and methods of green stem pine cauliflower

Cauliflower cruciferous cabbage is a type of cauliflower, also known as cauliflower, green cauliflower, organic cauliflower, white noodle scattered cauliflower, organic cauliflower, etc., because of its long buds, thin flower layer, and loose shape when the flower bulb is fully expanded, so it gets its name relative to ordinary cauliflower. Let's take a look at the planting technology of green cauliflower.

Cultivation characteristics

Pine cauliflower has two remarkable characteristics: one is good boiling resistance and delicious taste. The contents of vitamin C and soluble sugar in pine cauliflower are obviously higher than those in cauliflower, which is very popular among consumers. Second, the early and middle maturity varieties have strong heat tolerance and wider adaptability, which can be cultivated in the suburbs of the city "delayed in spring" and "in advance in autumn", and alpine cultivation can be put into production in summer and autumn, which broadens the time for cauliflower production and listing.

Field selection

The main results are as follows: 1. The field of pine cauliflower should have loose and fertile soil, good soil stability and strong capacity of water retention, water supply and oxygen supply. There are perfect water conservancy facilities in the field, which can drain and irrigate. Alpine cultivation is not suitable to choose low-lying land, sticky land to grow cauliflower, otherwise, the plant growth is poor, easy to get black root disease. Planting in early spring in plain area can be selected properly because of low air temperature and less Rain Water, but it should be made into wide furrow and high border and covered with plastic film to prevent moisture and moisture.

2. In the continuous cropping land, we should strengthen the control of diseases and insect pests and supplement micro-fertilizer. Sweet potato land and other slope dry land, water conservation capacity is poor, easy to drought, alpine cultivation fashion can be used in the first half of the year, if there is no watering condition in the second half of the year, the general year can not be selected. The suitable altitude for cultivation in high mountain areas is between 600 and 1200 meters. When planting alpine cauliflower below 800 meters above sea level, you should avoid the high temperature season, or choose more heat-resistant varieties, such as "Qingnong 70-day green cauliflower" and so on.

Cultivation season

The main results are as follows: 1. cultivated in the low mountain area below 350 meters above sea level: spring planting is sown from late December to early January, heat preservation and seedling raising in greenhouse, plastic film mulching and small arch greenhouse planting from late February to early March. Such as sowing from late February to early March, heat preservation and seedling raising in greenhouse or small arch shed. It can be planted in the open field from late March to early April. It can be listed from April or mid-May to early June. Autumn planting is sown from mid-June to July, shaded seedlings, planted from early July to August, and can be harvested and listed from late August to early November.

2. Cultivation in the mountain area with an altitude of 800m to 1200m: sowing from mid-February to mid-March, seedling age of about 30 days, planting from mid-March to mid-April, and harvest from mid-May to June. Qingnong 65 days sown from late March to July, the seedling age is 20-35 days, can be planted from late April to mid-August, and harvested from the end of May to early November. Alpine seedlings are protected by facilities (mostly small arch sheds), which can play the role of heat preservation and cold protection in spring, and can achieve the purpose of rain and moisture protection in summer and autumn.

Topdressing fertilizer

The main results are as follows: 1. Pine cauliflower is mainly nitrogen fertilizer at seedling stage, so as to apply thin fertilizer frequently and promote rosette leaves. Phosphorus and potassium fertilizer is the main fertilizer before and after budding, and bud fertilizer is re-applied, usually with fertilizer mixed with water, which can prolong the bud expansion period and promote the development and expansion of the corm. In the case of high temperature and drought, it is common that the lack of soil moisture hinders the absorption of nutrients by plants, so fertilization must be combined with water supply organically. Irrigation with water can improve fertilizer use efficiency and enhance quick efficiency.

2. During the growth of cauliflower, boron, molybdenum, magnesium, sulfur and other trace fertilizers should be applied to correct plant element deficiency. Among them, boron has a significant effect on the yield and quality of the corm, and it must be foliar topdressing for 2 or 3 times, especially in the period of corm expansion. In the process of topdressing in the middle and later stages, ammonium bicarbonate or ammonium bicarbonate fertilizer should be refused to prevent the flower bulb from producing hairy flowers.

3. The fertilization of pine cauliflower is mainly based on rotten manure and urine, combined with the application of quick-acting chemical fertilizer, balanced fertilization is carried out, and the amount and times of fertilizer application are determined according to plant growth and target yield. Generally, after planting live trees, in the early stage of rosette leaf formation, in the late stage of rosette leaf formation and budding, topdressing was applied for 3 ~ 4 times respectively, and at the same time, medium and trace element fertilizers such as magnesium, boron and molybdenum were applied together. No chemical fertilizer shall be applied within 20 days before harvest.