One type of broccoli, broccoli, broccoli, broccoli, broccoli, organic cauliflower, white broccoli, organic cauliflower, etc., because the buds are long, the flower layer is thin, and the flower ball is fully expanded. The shape is not tight, so the name is loose compared to the ordinary cauliflower. So let's take a look at the green stalked cauliflower planting technology!
Cultivation characteristics
Songhua has two remarkable characteristics. First, it has good boiling resistance and delicious taste. The vitamin C and soluble sugar content of Songhua is obviously higher than that of tight flower broccoli, which is very popular among consumers. Second, the early-middle-ripening varieties have strong heat resistance and wider adaptability. The suburbs of the city can be cultivated in the “spring extension†and “autumn advanceâ€. The alpine cultivation can be put into the market in summer and autumn, which broadens the time to market for broccoli production.
Field selection
1. The choice of Songhuacao field requires loose and fertile soil, good soil stability, and strong water retention, water supply and oxygen supply capacity. The field has a complete water conservancy facility that can drain energy. It is not advisable to plant cauliflower in low-lying land and sticky soil in alpine cultivation. Otherwise, the plant grows poorly and is susceptible to black root disease. Early spring planting in the plain area due to lower temperature and less rain can be used appropriately, but it should be made into a wide ditch and sorghum, and covered with plastic film to prevent moisture and moisture.
2. Reinforce pests and diseases and supplement micro-fertilizers. Dry land in slopes such as sweet potato land has poor water retention capacity and is prone to drought. It can be used in the first half of the year for alpine cultivation. If there is no watering condition in the second half of the year, it cannot be used in general years. High mountain area cultivation should choose an altitude of 600 ~ 1200 meters. Alpine cauliflower should be planted in the area below 800 meters above sea level. Avoid high temperature seasons, or use more heat-resistant varieties, such as “Qingnong 70-day Green Stalk Songhuaâ€.
Cultivation season
1. Cultivation in low mountain areas below 350 meters above sea level: Spring planting is planted in late December to early January. The greenhouse is covered with small arch sheds for heat preservation and seedling cultivation. From late February to early March, the mulch film and small arch shed are planted. For example, planting in the greenhouse or small arch shed in the late February to early March. It can be planted in the open field from late March to early April. It can be harvested in April or mid-May to early June. Autumn planting from mid-June to July, shady seedlings, planted from early July to August, can be harvested from late August to early November.
2, altitude 800 ~ 1200 meters high mountain cultivation: from mid-February to mid-March, seedling age 30 days, from mid-March to mid-April, planted from mid-May to June. Qingnong 65 days from March to July, seedling age 20 to 35 days, from late April to mid-August can be planted, harvested from the end of May to the beginning of November. Alpine seedlings are protected by facilities (mostly small arch sheds), which can be used for heat preservation and cold protection in spring, and can be used for rain and moisturization in summer and autumn.
Topdressing fertilizer
1. The main stage of the pineapple seedlings is nitrogen fertilizer, so that the thin fertilizer can be used to promote the rosette leaves. Before and after the bud, the phosphorus and potassium fertilizers are mainly used, and the bud fertilizer is applied repeatedly. Generally, the fertilizer is applied with water to prolong the swelling period and promote the expansion of the flower ball. In the case of high temperature and drought, the common soil moisture is insufficient to hinder the absorption of nutrients, so the fertilization must be combined with the water supply. The watering can increase the fertilizer utilization rate and enhance the quick-acting effect.
2. In the growth process of Songhua, the application of boron, molybdenum, magnesium, sulfur and other micro-fertilizers should be added to correct the plant deficiency. Among them, boron has a significant effect on the yield and quality of flower bulbs. It must be applied 2 to 3 times, especially in the flower bulb expansion period. In the middle and late stage of topdressing, it is necessary to refuse to use ammonium bicarbonate or ammonium bicarbonate fertilizer to prevent the flower ball from producing hair.
3, Songhua fertilization is mainly based on decomposed manure and urine water, combined with the application of quick-acting fertilizer, balanced fertilization, according to plant growth and target yield, the amount of fertilizer and fertilization times are implemented. Generally, after planting live trees, initial stage of rosette leaves, late stage of rosette leaves, and topdressing of buds, the topdressing is performed once every 3 to 4 times. At the same time, the application of medium, trace element fertilizers such as magnesium, boron and molybdenum is applied. Do not apply any fertilizer within 20 days of product harvest.
Cultivated root
1. The roots of Songhua are produced by the main stem, which is hierarchical. During the growth process, the deep roots are aging, new roots are continuously occurring in the near ground, and the overall distribution is shallow. The fibrous roots are mainly distributed near the main stem. It was observed that the root system was distributed deep during the cool season and the light season was very shallow, which may be related to the tropism of root growth to ground temperature.
On the other hand, in the operation of farming, most of the base fertilizer and top dressing are applied shallowly, which also promotes the growth of roots to the surface. Therefore, cauliflower production generally requires soil cultivation, through the cultivation of soil, promotes adventitious roots, stabilizes the soil environment for root growth, and enhances plant growth and lodging resistance.
2. In the case of alpine cauliflower with rainy roots and high temperature and drought, the effect of soil cultivation is particularly obvious, and the stress resistance is enhanced, which has a significant effect on yield increase. The growth process should generally be combined with alfalfa, loose soil, fertilization, and soil cultivation for 1 to 3 times. The cauliflower should not be cultivated. At the very least, it should be deeply planted. The production is not cultivated but shallowly planted. The cauliflower growth and yield are not good.
The method of cultivating the soil is to pour the muddy soil and the soil pre-stacked in the middle of the raft into the planting hole and the plant, and finally form a turtle-shaped uniform surface. It is not correct to form two small mites on one raft after soiling. It is often the case that the field is shallow and the soil is shallow.
Water management
1. The leaves of Songhua are many and thin, and can reach 17-23 in the middle and late growth period, 6-8 more than the common cauliflower varieties. The amount of steamed vines is large, and the phenomenon of water loss and wilting often occurs in the field, especially after continuous rainy weather. After exposure to water, or under high temperature, drought and strong light conditions, the wilting phenomenon is particularly obvious. Therefore, the soil of the vegetable field planted by the loose cauliflower can neither be too wet and cause roots, and can not be too dry to cause water shortage.
2. In general production, measures such as clearing ditch drainage, timely watering, rooting, mowing, and mulching are adopted to adjust the soil moisture condition in time, and strive to balance the water supply and keep the soil moist and loose. In the dry season, the horses are watered and watered, and flooding is prohibited. Water is drained in time after the rain, and water in the field is prohibited. Before planting live trees in summer, water should be watered once a day in the evening, and it is best to shade when it is high temperature and strong light.
Bunch of leaves
1. Songhuacai will turn yellow in spring or midsummer flower bulbs when exposed to sunlight. It will change color more deeply under the conditions of summer and autumn glare. This change not only affects the appearance of the product, but also affects the tender quality of the flower ball. Therefore, the flower ball care is the mountain pine flower. An important part of the production process.
Unlike the flower-ball care of the common cauliflower, the pine-flower-flowers mostly use the leaf-leaf-protecting flower instead of the folding-leaf-flowering method, especially in the production process mainly based on the rare planting of large balls, because the flower ball is fluffy and large. The leaf overlap is poor, and has the characteristics of flower ball development and leaf leafing at the same time. The leaf cover flower is often enlarged by the flower ball and the inner leaf grows, and the shading effect is not good.
2. The specific practice of the flowering and stalking of the safflower is to take 4 to 5 pairs of large leaves close to the flower ball and stack them together without breaking. 3 mm thick, 7-10 cm long small bamboo sticks, small straws or small wood rods are used as fixed joints. The punctured and intertwined leaf tips are fixed at the main vein, and the stringed and fixed leaves are lantern-shaped. Cover the entire flower ball, so that the flower ball is protected from direct sunlight during the subsequent growth process, and there is enough room for expansion.
3, Songhuacao shades and flowers are more stringent and better, strict leaf-leaf protection, can completely avoid the sun shining on the flower ball, even in the midsummer environment, the whole flower ball can be kept white and tender. Compared with the usual method of folding leaves, the flower-leaf protection is completed in one time, eliminating the trouble of multiple folding leaves, saving labor and time, and the effect is better.
Pest control
The insect pests of Songhua are mainly aphids, diamondback moth, leaf miner, green worm, cabbage caterpillar, Spodoptera litura, beet armyworm, cockroach, yellow stripe, and whitefly. Prevention and control should implement the plant protection policy of “prevention first, comprehensive preventionâ€, give priority to agricultural control, physical control, biological control, scientific and coordinated use of chemical control, strictly control the number of drugs, observe the safety interval, and control pests and diseases in the allowed economy. Below the threshold, the pesticide residue is controlled within the national green food standards, achieving safety, quality and harmlessness.
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