Onion high-yield cultivation techniques

First, land selection

Welsh onion is a perennial perennial plant with strong resistance to negatives. It is suitable for the cultivation of neutral or slightly alkaline plots with deep soil, loose texture and high fertility.

Second, the appropriate colonization

In Jizo Prefecture, after harvesting wheat, they are usually planted from June 15 to June 30. The onion seedlings are required to have 8 to 9 leaves, with a plant height of about 35 cm and a horizontal diameter of 1 cm. The land to be planted is 5000 kg of farmland fertilizer per mu, or 80 kg of biological organic fertilizer and 40 kg of diammonium sulfate, tilled and hoeed and then transplanted.

Third, field management

1. Formulated fertilization: Apply fertilizers according to pollution-free production requirements, promote the use of decomposed organic fertilizers, organic-inorganic compound fertilizers, biological fertilizers and foliar fertilizers, control the application of inorganic nitrogen, promote the use of chemical fertilizers and organic fertilizers, organic nitrogen and inorganic compounds The ratio of nitrogen is 1:1, which avoids the excessive application of nitrogen and prohibits the use of nitrate nitrogen, hospital excreta, garbage, unconsumed organic fertilizers, and inferior fertilizers containing harmful substances. According to the land power, 5000 kg of green onions are generally produced per acre, and 3,000 kg of excrement and urine are used as basal fertilizer for deep-turning. When planting the ditch, apply 50 yuan compound fertilizer per acre, slow-middleing stage, cultivator, prevent weeds, break harden, and apply slow-onset seedling fertilizer, and pour 2500 kg of manure or circle manure water per acre. After the beginning of autumn, the growth of green onions will increase, so that the grass should be intensively cultivated in order to facilitate water conservation and conservation, as well as the application of foliar fertilizers as appropriate, 50 kg of wood ash per mu, 20 kg of superphosphate, and Bailu to Qiufen to re-apply for tree-building fertilizer, per mu. Topdressing potassium sulfate or urea about 20 kilograms, 2500 kilograms of manure water, fertilizer, water, attack, in order to benefit strong trees. After the equinox, soil is cultivated every half a month, which is conducive to the formation of long onions. Stop top dressing 30 days before harvest.

2.Appropriate close planting: Jizi green onions, Zhangqiu green onions, should close planting, the general spacing of about 75 cm, spacing of 5 to 6 cm, the planting density of 1.2 to 15,000 per mu, planting hybrid onions can be appropriate sparse, acres planting 1 ~ 1.2 thousand plants, the plant spacing relaxed to 7 cm.

IV. Pest control

The policy of plant protection based on prevention and integrated prevention should be adopted.

1. Agricultural measures: It is mainly rational rotation, weeding and weeding, cleaning of pastoral weeds, use of fully decomposed organic fertilizers, selection of high-yield, high-quality, disease-resistant varieties, and balanced fertilization.

2. Physical measures: Using a frequency-vibrating lamp, the Spodoptera exigua, Spodoptera litura, and adult Heliothis virescens were ensnared at the height of the moth.

3. Onion pest control: Onion thrips can be used imidacloprid 2000 ~ 3000 times liquid spray control; onion leaf fly with avermectin 3000 times spray control; beet leaf moth, cotton bollworm can be used diuretic spray control.

Also pay attention to the control of underground pests. Onion pests mainly include onion flies, golden needles, cockroaches, cockroaches, and root-knot nematodes. When transplanting, use phoxim 1000 times solution to soak the roots for 10 minutes or 1 mu to sprinkle 1 kg of chlorpyrifos in the ditch. In the middle and late watering facilities.

4. Welsh Onion Disease Prevention: For purple spot and black spot, 75% chlorothalonil powder 600 times or 58% metalaxyl WP wettable powder 500 times, 7 days to 10 days, even spray 2 ~ 3 times.

For downy mildew, 72% Kelu WP can be used 600 to 700 times or Antivirus WP can be 500 times for 7 to 10 days, and spray 2 or 3 times.

Soft rot is a bacterial disease. It can be sprayed with 70% of 500 times solution or 4000 times of agricultural streptomycin.


Size

Because  of  different growing environment and conditions of itself, the fruit will be  different types of shapes and sizes, usually we deliver the size 180/220/280/320/350 and  so on, but can also supply other sizes. 



180Grains/50g Goji Berry

180Grains/50G Goji Berry,Small Packaging Goji Berry,Organic Dried Goji Berries,Bulk Wolfberry

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