Celery is a new type of health vegetable, which is popular because of its good taste and high nutritional value. The cultivation methods include spring, summer and autumn open field cultivation, autumn and winter protection cultivation. In order to obtain high quality, high yield, and high efficiency, winter celery celery cultivation must first use good varieties to cultivate age-appropriate seedlings, followed by adopting cultivation modalities and management measures that are complementary to fine cultivars, and thirdly, timely market harvesting. 1Select good varieties The celery should use varieties with large plantlets, petiole hypertrophy, strong growth potential, good resistance, low fiber content, and good quality, such as Ventura, Italian winter celery, FS Celery 3, and Victory Celery. The celery is a type of cultivation in our country. The plants are slightly smaller and the petiole is slender, but the aroma is strong. Jinnan celery, Baimiao celery, Weifang young celery, etc. should be used. 2 high quality seedlings All localities should arrange nursery time based on the celery market availability and arranging arrangements. Under normal circumstances, the celery is planted in the middle of June to early July. The celery is sown in late June and late July. It is planted from late August to late September. The celery is 65 to 75 days old and the hen is 55 to 65 days old. The winter and autumn celery seedlings are in high temperature and rainy season, which is not conducive to seed germination and seedling growth. If the management measures are not appropriate, there will be difficulties in seedling emergence, low seedling emergence, long seedlings, and poor seedling quality. The key to seedling management is to create cold and humid environmental conditions, prevent drought, flooding, leggy, dead seedlings, etc. The specific practices are as follows. 1 The low-temperature treatment relieves the seed from sleeping. The celery is like cold. If the temperature is higher than 25°C, the seeds will be difficult to germinate, and germination will only be successful at 15°C to 20°C. Therefore, the seeds must be subjected to low temperature treatment in summer sowing. Seeds soaked 12h, can be placed in a refrigerator at 10 °C for low temperature treatment 7 ~ 8 days after the dormancy to stop sowing. (2) Planting shady sowing to select sandy loam soil with high topography and good irrigation and drainage conditions as seedbed, the seedbed is about 10m long and 1.2~1.5m wide. After sifting the cooked organic fertilizer, evenly spread it to the simmering noodles, turn it into the soil, and mix the scum thoroughly. Then, level the bed surface, irrigating the water, mix the treated seeds and fine sand, and spread evenly on the bed. Then cover the sieve fine soil 2 ~ 3mm thick. Planting 667 square meters of celery requires high-quality seeds of 50 to 80 grams and seedbeds of 30 to 50 square meters. After sowing, use bamboo shoots and other objects on a seedbed to build a shelf. Put some branches or shading nets on the shelves to prevent the exposure of strong light and heavy rain to facilitate seedling emergence and prevent leggy seedlings. 3 Pouring good seedbed water After seeding, the top soil of the seedbed should always be kept moist. When the seeds are topped with soil for 7 to 8 days, lightly sprinkle the water once to make the seedlings unearthed smoothly. The seedlings can be grown in 8 to 10 days. When the seedlings 2 to 3 leaves, they are poured with small water once again. The water in the seedling stage should not be too much to prevent the seedlings from growing in length and damping off. 4 to apply strong seedling fertilizer, timely control of weed seedlings 3 to 4 leaves with the water topdressing once available nitrogen fertilizer, as the case of fertilization. Summer heat should pay attention to foliar spray calcium fertilizer to prevent heart rot. Slow growth of celery, slow growth, and weed competitiveness is very weak, easy to "eat" grass, we must immediately remove weeds or rational use of herbicides. 5 points between the seedlings due to the summer celery is very easy to die, Qimiao after the first to go seedlings, too thick seedlings. 2 leaves when the second seedlings, seedlings from about 1 ~ 1.5cm, 4 leaves when the third seedlings, seedling spacing to maintain 3 ~ 5cm. After each seedling can be poured a small water pressure. 6 timely colonization in late August to late September, when the seedling height 10 ~ 15cm, 5 to 6 leaves in time for planting. 3 timely planting After harvesting the former crops, apply about 5.000 kg/667 m2 of composted organic fertilizer, deep-flush 25 to 30 cm, and after sufficient drying, plow and level, and make a 1 to 1.5 m wide raft, select cloudy or cloudy. Days planted. When raising the shoots, the roots should be 4 to 6 cm long, and the size and size of the seedlings should be planted. Depth below the planting depth is not rooted, is not buried in the best, planted too deep or too shallow, celery are prone to slow seedling slow, low survival rate, slow growth after survival phenomenon. Dry soil should be poured once after planting, but the water flow should be slow to prevent red seedlings. The wet planting method promoted in recent years is more convenient. After the wet planting method, the wet planting method is followed by irrigating the water first, and the celery seedlings are planted on a lined wet mud according to the spacing of the plants. in. Wet statutory planting is fast, fast seedling is quick, rooting is good, and it is better than traditional dry soil colonization. Planting spacing, row spacing, depending on the species, generally the celery 12cm15cm, 28,000 to 33,000 plants per 667 square meters, appropriate dense planting; celery seedlings 20cm30cm, medium seedlings 20cm25cm, seedlings 20cm20cm, 10,000 per 667 square meters planted ~ 15,000 strains, to ensure that the planting of large trees, in order to achieve the purpose of high quality and efficiency. 4 Post-planting management To promote mild seedlings after planting, it is necessary to keep the soil moist and pour water 2 times in 7 days. After easing the seedlings, cultivators should be promptly cultivated to promote the growth of new roots and new leaves. The first cultivator should be meticulous, try to remove the weeds and break the topsoil, but do not hurt the seedlings. Two times of cultivator, the new leaf is prosperous, and can be used to raise seedlings for 1 time. Urea 10kg per 667m2 is applied. After the celery is sent in mid-October, the weather gradually cools, and it is necessary to flush with fertilizer and attack every 667 square kilometers for 15-20 days. Rice can chase 15 to 20 kg of urea, and can recover 1 to 2 times of diluted manure water in the middle, and enter greenhouse shed cultivation in late October to timely insulate the shed. In the middle and late December, small sheds should be covered in the shed, and the outside of the greenhouse should be covered with grass rakes. , Do a good job of insulation and antifreeze work. 5 Pest control Autumn celery prone to spot blotch disease, the disease can be used 75% chlorothalonil 600 times, or 70% mancozeb 500 times, or 50% carbendazim 500 times, at the beginning of the disease every 7 to 10 days Spray 1 time, control 2 or 3 times. After planting, attention should be paid to the use of avermectin to control the damage of leaf miners before covering the shed, and the spray control is usually applied once after planting. The variety of celery is prone to heart rot in the seedling stage and it is necessary to spray the leaves with calcium fertilizer 2 to 3 times. 6 timely harvest Harvesting is timely and cannot be harvested too late, otherwise nutrients are easily transported to the roots, causing a decline in yield and quality. The cultivation of greenhouses should be harvested before the Spring Festival or 10 days before the planting of the next crop. General production of 667 square meters 7500 ~ 10000kg. Large Starch Separator Mahcine Large Starch Separator Machine,Separator For Corn Starch,Edible Starch Separator Machine,Cassava Starch Processing Shuangfeng County Dingyuan Machinery Manufacturing Co. Ltd.. , https://www.separators.pl