- Origin: Viet Nam
- Growing times:
+ Cucumbers grown all year round, in the North may stop producing 1-2 cold months.
+ Spring crop: February 15 to April 15, using cool and hot varieties of varieties.
+ Summer crop: May 15 to July 15, using heat-resistant varieties.
+ Autumn crop: early September to October 15, using hot and cool varieties.
+ Winter crop: Planting from December 15 to January 30, using cold-tolerant varieties.
- Breed
+ Using high-quality, clear-origin varieties, supplied from reputable establishments.
+ Cold tolerant varieties (growing and developing at temperatures from 15 - 200C): Nep Dam, Thuy Nguyen and My Van.
+ Group of resistant varieties from cold to cool warm (growing and developing at temperatures from 18-280C): Happy 02 F1, Andaman 883 of the US, C715 of Taiwan.
+ Group of cucumbers resistant from cool to hot (growing and developing at temperatures from 22 - 350C): CT179, CT450, CT013, VL 133, Sakura, Tropical L08 - L09, CN 372, Chanh Nong, GL1 -7; GL1 -8; GL1-9; GL1-2 ...
+ The amount of seeds: 30 - 32 grams / sao (about 850 - 900 grams / ha).
- Soil preparation
+ Soil must be ensure conditions for safe vegetable production as stipulated in Section II of this process. Making bed 30cm, distance of bed is 1.4 m wide, the bed surface is at least 40cm wide, easy to drain. After each crop, keep the bed, water the bed for about 10 days and use a mini cultivator to make soil on the bed surface. Can cover plastic bed surface to keep it moist and limit weeds.
- Planting density
+ Density: 1,200 - 1,300 plants/ sao (32,000 - 35,000 plants / ha).
- Fertilizing
a) Using only organic fertilizers: can choose organic fertilizers and dosage
- Dosage of fertilizer:
+ Soybean powder (or soybean meal) 30-40 kg / sao (800 -1,100 kg / ha) and 10 - 15 kg corn flour / sao (300 - 450 kg / ha).
+ Or compost of animal origin heat treatment (such as Fetiplus, Melgert, Nature, ...): 20-40 kg / sao (550 - 800kg / ha) and 10 - 15 kg corn flour / sao (300 - 450 kg / ha).
+ Or composted manure of 500 - 600 kg / sao(15,000 - 17,000 kg / ha) and 10 - 15 kg of maize / sao (300 - 450 kg / ha).
+ Depending on the crop and the amount of previous crop to increase or decrease the amount of soybean.
- Fertilizer method:
+ Soybean meal (or soybean meal), organic fertilizer of animal origin and heat-treated 100% corn flour for soil preparation. Note not apply directly to the tree.
+ Manure composting hoai item: Apply 2 times, the first stage fertilizing 70%, the second phase fertilizing the remaining amount when the plant starts to have flower buds. Depending on the condition of the crop, soil conditions can be added to the plant by soaking composted compost with water or squeezing the dilute solution with water to irrigate the plant.
+ Rotation with soybean plants to improve soil. When harvesting soybeans, plowing is carried out completely with convenient water sources or incubated with unfavorable water sources.
b) Measures using chemical fertilizers
+ Dose: manure composting hopper 350-400 kg / sao (9,800 - 11,000 kg / ha), or micro-organic fertilizer 40-45 kg / sao (1,100 - 1,300kg / ha); urea 6-8 kg / sao (170 - 220 kg / ha); super phosphate 10 - 12 kg / sao (280 - 340 kg / ha); potassium 7-8 kg / sao (200 - 220 kg / ha); NPK (5: 10: 3): 30-35 kg / sao (850 - 980 kg / ha).
+ Fertilizer method: 100% manure fertilizing manure, 50% organic fertilizer, 50% super phosphate, 20% potassium, 20% NPK. First-time top dressing (when plants have 3-4 true leaves): 25% urea, 25% phosphate supe, 20% potassium. 2nd application (when flower buds appear): 50% microbial organic fertilizer, 25% urea, 25% super phosphate, 20% potassium, 20% NPK. The 3rd application period (after harvest from 4 to 5, about 40 days after planting): 25% urea, 20% potassium, 20% NPK. Applying for the 4th time (the first time to apply the 3rd time from 12-15 days): 25% urea, 20% potassium, 20% NPK. Note that urea nitrogen should be applied at least 7 days before harvest.
- Watering and taking care
+ Using water sources meeting the standards prescribed in Section II of this process. Water enough moisture from after planting to harvest. Drain water in time when flooding. Apply the method of irrigation or drip irrigation.
+ Weeding should be combined with the pruning of old leaves, leaves blighted by blight, leaves badly damaged by maggots destroyed.
- Making rigs
+ Making trusses when trees appear rolling tendons, about 30 - 35cm high, type A. A pole requires 1,400 - 1,600 trees (2) high, each tree plugs 1 tree, 1 truss has 2 - 3 horizontal splints . The cucumber body grows very fast, so it is necessary to tie the tree to the trellis along the tree, every 2 - 3 days for each time.
- Pest and disease prevention
- Major pests and diseases: gray worm, cavity, green worms, aphids, thrips, leafy flies, yellow chalk disease, powdery mildew, fruit flies.
+ Rotation with Green mustard, when green mustard plants appeared Flower, plowed and combined with water soaking for about 10 days to limit pests and diseases in the soil.
+ Using antagonistic fungus Trichoderma incubated with decomposed organic fertilizers.
+ Cleaning fields, weeding, crop residues in combination with using biological products EMINA, BIOEM, EM, ... to incubate. Dispose of diseased leaves, remove diseased plants, disconnect eggs and kill young worms (gray worms catch in the evening). Rotation with other plants.
+ Create a favorable environment for natural enemies to develop, lure and repel harmful insects such as Chrysanthemum flowers
