1, soil selection and land preparation Select pH between 6.0-7.5, rich in organic matter, good drainage and irrigation, water retention and fertilization of the viscous sandy loam, avoid continuous cropping with melon crops, the best previous crop for rice paddies. The preparation of the ground using deep ditch raised beds, bed width 1.8 m -2.0 m (even ditch), bed height of 30 cm, north-south, double row planting, plant spacing 30 cm.

2, sowing seedlings early spring January-March sowing, summer and fall planting June-August. Spring sowing seedling or mulch cover direct seeding after seed soaking and germination, summer and fall seed soaking direct seeding or dry seeding direct seeding can be.

Submerged seed germination is commonly used in cucumber sowing, with 50-55 ℃ warm boiled water scalding seed disinfection for 10 minutes, constantly stirring to prevent scalding. Then about 30 ℃ warm water immersion 4 -6 hours, scrub clean, waterlogged up and drained, in the 28-30 ℃ thermostat or warm place moisturizing germination, 20 hours to start germination. Early spring small arched greenhouse insulation nursery, with nursery cups or seedbed nursery, seedling age 15-20 days (2 true leaves) when planting, in the evening on a sunny day, pay attention to the protection of the root system, before starting the seedling drenched with water, start the seedling according to the order to do so with the soil planting, in order to prevent injury to the roots.

3, fertilizer management and soil cultivation Adequate fertilizer is one of the keys to stable and high yield. Cucumber responds well to the base fertilizer, deep ploughing and applying decomposed organic fertilizer, 2000kg-3000kg per mu, 50kg of hairy fertilizer, 30kg of calcium superphosphate as base fertilizer. When the plant has 2-3 true leaves, start fertilizing. Cucumber root absorption is weak, sensitive to the high concentration of fertilizer response, fertilizer to "diligent application, thin application" as the principle, every 6-8 days fertilizer 1 time, mu of urea 5 kg -6 kg.

The tendrils appeared when combined with plowing and weeding soil fertilization, harvesting the first batch of melons and then soil fertilization 1 time, mu Shi peanut bran 15 kg -20 kg, 30 kg of compound fertilizer, potash 10 kg.　　Summer and autumn due to high temperatures, rapid growth and development, aging is also fast, coupled with heavy rainfall, fertilizer loss, in addition to adequate basal fertilizer, early fertilizer. 1-2 pieces of true leaves period and harvest the first batch of melons after the soil cultivation fertilizer 1 time, we should pay attention to the phosphorus and potash fertilizer, in order to avoid the steep growth, early decline.

Spring cucumber seedlings to control water. Flowering and fruiting period requires the most water, sunny days generally a day drenching 1 time, dry conditions 3-5 days irrigation 1 time. When it rains, do a good job of preventing flooding.

4, frame trailing and branching General tendrils appear when inserting bamboo trailing, build "herringbone frame". The trailing starts after the tendrils appear, every 3-4 days trailing once,

To make the plants evenly distributed, in the evening on a sunny day. Cucumber whether or not the whole branch depends on the variety, the main vine results generally do not need to straighten; the main side of the vine results or the side of the vine results, to remove the top of the whole branch, generally 8 sections of the side of the vine below the cut all, 9 sections of the side of the branch to stay more than 3 sections of the top of the top of the main vine about 30 sections of the top of the top of the picking.

Expanded

Greenhouse

Preparation before planting

1, cover the film and shed disinfection, planting a month before the film cover, and shed disinfection, disinfection can be used to use dichlorvos 200 ml, add sulfur 1.5-2 kg, and sawdust mixed with lit, smothered shed 1-2 days. The disinfection can be done with 200 ml of dichlorvos, 1.5-2 kg of sulfur, mixed with sawdust and ignited, and smothered for 1-2 days. For the root-knot nematode more powerful shed, you can also mu Shi lime nitrogen 80 kilograms, fully mixed.

2, land preparation and fertilization: base fertilizer to organic fertilizers, acres of well rotted organic fertilizer 10,000 kg, deep turning 40 cm mixed. It can also be applied to fermented and rotted grass, wheat straw, rice husk and other organic materials in successive years. The best measure is the application of straw bioreactor technology, which can effectively raise the ground temperature, increase soil organic matter, improve the soil environment, but also reduce the occurrence of diseases, improve product quality, and outstanding yield increase.

3, do bed and cover the film: winter greenhouse cultivation of cucumber should be up high bed, and take drip irrigation or under the membrane dark irrigation method, bed width 1.2 meters, high 15 cm or so, and take the film cover. You can also plant first and then cover the film.

4, the determination of the planting period: winter and spring crop cucumber is generally planted in late November to early December.

5, planting method, density: about 3500 plants per mu cultivation. Planting seedlings should be strictly screened to eliminate diseased seedlings, weak seedlings and grafted unqualified seedlings, according to 28-30 cm spacing to open a good planting holes, the seedlings will be implanted in the holes, watered, and then covered with mulch.

Pest control

Whitefly

Whitefly has a very mixed diet and can harm a variety of vegetables. The main damage is caused by the caterpillar, which concentrates on the back of the cucumber leaf and sucks up the sap, causing the leaves to discolor, turn yellow, wilt, and in severe cases, the plant withers and dies. When infested, it also secretes dense dew, contaminating the leaves, causing mold infection, affecting plant photosynthesis, seriously affecting yield and quality.

Prevention methods: try to avoid mixed plants, especially cucumbers, tomatoes, beans can not be mixed. Adjustment of production stubble is also an effective method, that is, the first crop arrangement celery, bell pepper and other whitefly infested vegetables, the next crop and then planted cucumber, tomato. Older insects are mostly distributed in the lower leaves, remove the old leaves and burn them. In the greenhouse set yellow board can effectively control whitefly.

Using a backpack motorized smoker to atomize 1% deltamethrin or 2.5% permethrin (permethrin) oil into droplets, suspended in the air to kill adult insects is very effective. Available 25% thiazinone (pesticide) wettable powder or 2.5% deltamethrin or 20% cypermethrin (speed killin) emulsion 2,000 times spray every 6-7 days, three times in a row to prevent and control. Can also be fumigated with fumigant, 2-3 times in a row.

Baidu Encyclopedia - Cucumber