Spring sowing: harvesting in late March-early April, and mid-May-June.
Autumn sowing: July-August, September-65438+1October harvest.
Fennel is pungent, sweet and warm. Has the effects of invigorating stomach, dispelling cold and relieving pain.
Fennel can be fried, cold, steamed stuffed bun and jiaozi, each with its own flavor.
Question 2: When will fennel be planted artificially in spring?
Land selection and preparation
Fennel has a well-developed root system and is drought-resistant and waterlogging-resistant. Therefore, it is necessary to choose the one with deep soil layer and good desalination. Plant in sandy loam or light sandy loam with strong permeability and good drainage. Fennel seeds are small, and the seedlings after germination have weak top soil strength, so they should be carefully prepared. Generally, after the soil is thawed in early spring and March, it should be plowed and leveled in time, and the shovel should be high and low, so as to be soft and smooth as a mirror, which is convenient for sowing. Fennel with sufficient base fertilizer has a long growth period and needs a large amount of fertilizer, and likes phosphorus and potassium fertilizer. Fertilization should be based on base fertilizer. Before sowing, high-quality organic fertilizer, rare earth phosphate fertilizer, urea and potassium sulfate should be applied in the deep soil as base fertilizer, and a new high-fat film should be sprayed to enhance fertilizer efficiency.
(1) Land selection and soil preparation: Select suitable land, apply 45,000 kilograms of high-quality manure per hectare, plough deeply for more than 30 cm, rake flat and thin, and make a flat border with a width of 80 cm. When the land is dry, drain the water into the border first, and then sow when the water slightly penetrates into the topsoil.
(2) Breeding method: Sow between "vernal equinox" and "Tomb-Sweeping Day". Before sowing, select plump new seeds, soak them in warm water at 40℃ for 65,438 0-2 hours, take them out, put them in gauze bags, wash them with warm water twice a day, and sow when the seeds germinate slightly. Trenches with a depth of 3-5 cm are dug in the border according to the row spacing of 40 cm, and the seeds are evenly sown, and the covering soil layer is slightly pressed. After sowing, seedlings usually emerge in 10- 15 days, and the amount of seeds used per hectare is 22.5-30 kg, so the transplanting yield of seedlings is high.
(3) Field management: After emergence, water properly according to the drought to keep the border surface moist at seedling stage. Combined with intertillage weeding, when the seedling height is 6-8 cm, the plant spacing is 9 cm, and when the seedling height is above 15 cm, the plant spacing is 20 cm. Top dressing should be carried out when the height of seedlings is 30 cm, mainly with quick-acting organic fertilizer and calcium superphosphate. Water in dry weather and drain in rainy season to prevent root rot. After harvesting in Jinnan area in the same year, the roots can safely overwinter with a layer of cattle and horse manure or soil fertilizer, and germinate early in the next year, with vigorous growth and high yield. Seeds with full grain, bright color and no diseases and insect pests should be sown early in time, and impurities should be removed by manual selection. Seed dressing with phoxim and new high-fat film before sowing can avoid underground pests and diseases, isolate virus infection, strengthen respiratory intensity, improve seed germination rate, and brush the surface after sowing.
Scientific management of fennel seedlings leads to weak topsoil and slow growth at seedling stage. Before and after the emergence of seedlings, the hardening should be broken in time to help the emergence of seedlings. After the emergence of seedlings, weeds should be released in time, and intertillage should be done in time to keep the fields loose and clean, which is conducive to growth and development. Seedling spacing should be early, seedlings should be fixed firmly, and it is strictly forbidden to leave two seedlings in order to form strong seedlings. Spraying Zhuhuawang No.3 during fennel growing period can effectively inhibit the growth of main shoots, redundant buds and lateral centers of various crops, promote flower bud differentiation, blossom more, set more fruits, prevent fruit drop and promote development. Combined use of Caiguozhuangdiling can enhance the fertilization quality of fennel pollen, with strong fruit setting rate, promote fruit development, no deformity, no scratch, good uniformity, improved quality and high yield of fennel repeatedly.
Fennel production period
Fennel is planted in greenhouses, and fennel is often used in spring and in autumn and winter. Fennel and star anise have different growth periods. The growth period of fennel is 45-60 days, and the growth period of fennel is longer. Fennel is harvested when it grows to 20-30 cm. If it is a harvest, it can be uprooted. If it is a multiple harvest, it will be cut at 2-3 cm above the surface. Tips Foeniculum vulgare is a good product with uniform particles, full texture, yellow-green color, rich aroma and no stalk. It should be sealed, cool and protected from light.
Question 3: When is the best time to plant fennel in Ningbo, Zhejiang? Fennel seedlings like cold and cool, with strong adaptability and short growth period. The suitable growth temperature is 65438 06 ~ 23℃. Therefore, fennel can be planted from March to September, which is suitable for planting in flat land. Fennel seedlings are resistant to weak light and have no strict requirements on soil. With sufficient nitrogen fertilizer and convenient watering, high quality and high yield can be obtained.
Fennel is mostly sown by wet sowing method, that is, the soil is covered when the border is made, the bottom is poured before sowing, and the seeds are evenly spread and covered after sowing. Fennel leaf area is small, which is very suitable for close planting, and the sowing amount per mu is 3-5 kg. In order to make seedlings emerge quickly and orderly, it is best to soak seeds to accelerate germination before sowing. The method is to soak the seeds for 24 hours, then rub them by hand for several times until the water is clear, spread the wet seeds on sacks or straw mats in the shade, then put them in clay pots, cover them with wet cloth, and accelerate germination at 16℃-23℃.
If the seeds are dry-sown, they should be watered frequently after sowing, and the border surface should be kept moist to facilitate the germination of new buds. If the water is insufficient at the time of emergence, it is easy to be short of seedlings.
After the seedlings are unearthed, they grow slowly and tend to grow weeds, so attention should be paid to weeding. Fennel should be kept dry and moist at the border of Xinwei. When the plant grows to 10 cm, it should be watered frequently to keep the soil moist, and combined with watering and topdressing available nitrogen fertilizer. Don't ask the seedlings after harvesting once. If it is harvested many times, weeding and early seedling spacing should be combined, and the seedling spacing should be 5 ~ 6 cm. When the plant grows to about 30 cm, it can be harvested. If you harvest for many times, you can harvest the stubble and water it after the new buds grow 2 ~ 3 cm.
Question 4: Fennel is planted as a dicotyledonous spring sowing crop with long sunshine, semi-cold tolerance, early cold tolerance, drought tolerance but no waterlogging tolerance. The growth period after emergence is 65 ~ 85 days. The reproductive process is fast and adaptable. North China is mainly planted in spring and autumn. (open cultivation)
Spring sowing: harvesting in late March-early April, and mid-May-June.
Autumn sowing: July-August, September-65438+1October harvest.
Fennel is pungent, sweet and warm. Has the effects of invigorating stomach, dispelling cold and relieving pain.
Fennel can be fried, cold, steamed stuffed bun and jiaozi, each with its own flavor.
Question 5: How many cultivation techniques can fennel be planted in North China a year?
1. Seeding method
① There are two sowing methods: winter sowing (egg wrapping) and spring sowing. Sowing in winter, sowing in the frozen farmland with suitable soil moisture before last winter (Kashi Reclamation Area165438+1October 25th to 65438+February 5th, the ground temperature of 3cm can also be used as an indicator), and harvesting crops in the next year. Spring sowing is sown, managed and harvested in the spring of that year (the advance of spring sowing time has a nonlinear positive correlation with the harvested fennel yield).
(2) Intercropping utilizes the short growth period of fennel, and after sowing wide and narrow rows of plastic film crops in spring, intercropping fennel in wide rows. In April when the ground temperature is not higher than 15℃, it is suitable to interplant before 12 or 5 cm.
2. Variety selection
Shache fennel with strong branching ability, high yield, lodging resistance, purification and rejuvenation, and full screening of seeds should be selected.
3. Sowing requirements
There are two kinds of fennel: hole sowing and drill sowing. Winter sowing is mainly hole sowing (row spacing is 20 ~ 30cm, hole spacing is 9 ~ 12cm), and spring sowing is mainly drill sowing (row spacing is 30cm, plant spacing is 5 ~ 8cm). Interplanting adopts hole sowing. Sowing depth 1.5 ~ 2.5 cm, and pressing after sowing. The seed consumption per hectare is 22.5 ~ 30kg (1000-grain weight1.3 ~1.8g). Hole sowing covers 300,000-500,000 holes per hectare, with seedling protection1.40-2 million plants, and drilling seedling protection 1.50- 1.8 million plants.
manage
(1) In early spring, the field management focuses on increasing temperature and preserving soil moisture. Before sowing fennel, shallow harrow should be carried out to suppress it, and the ground should be harrowed in time in case of rain before sowing, so as to break the harden and keep moisture and sprout early. The direction of shallow harrow is perpendicular to the sowing direction, the depth of harrow is less than 2 cm, and it is equipped with broken soil ballast.
② Field management at seedling stage is mainly based on chemical regulation, supplemented by manual weeding and plant spacing. Spraying foliar fertilizer 1 time (1% ~ 2% potassium dihydrogen phosphate +0.5% ~ 1% urea) on fennel seedlings at 2 ~ 4 leaf stages. When the seedlings grow to 5-8 leaves, spray 0. 15% ~ 0.3% mepiquat chloride locally in the overgrown fields to increase the thickness of basal internodes of overgrown seedlings, reduce plant height and prevent lodging in the later stage.
(3) The field management in the flower and fruit period is mainly to prevent accumulated rain from flooding, leaving roots and leaves, promoting grain setting and increasing grain weight. Fennel is drought-tolerant, but not waterlogged. In case of rain in May and June, the field will be waterlogged for more than 8 hours, which will lead to plant death or even crop failure. Therefore, in case of moderate to heavy rain, drainage should be done in time. Although fennel flower and fruit period does not require high water and fertilizer, it has a long overlapping period. Abnormal climate and soil drought will have adverse effects on flowering, fertilization and yield, and 0.2% ~ 0.4% boron and zinc micro-fertilizer can be sprayed on the leaves to improve the seed setting rate. In the middle and late growth stage of fennel, there are premature aging spots (yellow leaves), so 1.5% ~ 3% urea foliar fertilizer can be sprayed to improve the ability of roots and leaves to absorb nutrients and promote the normal ripening of fruits. 0.2% ~ 0.4% potassium dihydrogen phosphate can be sprayed on the dark green, green-greedy and late-maturing parts of leaves to increase the 1000-grain weight and achieve the same total harvest period.
Question 6: How long does it take to plant fennel seedlings? After the fennel seedlings are fully grown, it is necessary to interplant in time, with a spacing of 4 cm, and remove weeds in combination with interplanting.
Topdressing should be carried out when the seedling height is about 10 cm. Generally, biological flushing fertilizer is applied per mu, and the dosage is 20 ~ 30 kg per mu. If multiple harvests are carried out, the same amount of quick-acting fertilizer should be applied after each harvest.
Fennel is not drought-tolerant, so it should be watered immediately after sowing. After emergence, it is necessary to properly control water and squat seedlings. When the seedling height is 10 cm, it should be watered frequently until the harvest. When the new buds grow to about 2 cm after stubble, they should be watered and fertilized, and after harvesting for 3 ~ 4 stubbles, they should be turned over.
Question 7: How and when to plant fennel?
Question 8: When fennel is ripe, it can be sown in spring and autumn or propagated by dividing plants in spring. The origin of sea area is widely cultivated in all parts of China with strong adaptability. North China is mainly cultivated in spring and autumn. Spring sowing (open field cultivation): from the end of March to the beginning of April, and harvesting in the middle and late May. Autumn sowing: July-August, harvest in September.
Question 9: How to plant fennel and how many days will it come out? In the north, cucumbers are usually planted after Tomb-Sweeping Day. If the weather changes suddenly before Tomb-Sweeping Day, the newly sprouted buds will be frozen. When planting, fertilize first, loosen the soil and throw it into a small pit with a hoe. The pit should be shallow. Each pit is about a foot apart, and then water is poured. After soaking, put cucumber seeds in, usually three or four, and then cover them with soil.