Greenhouse cucumber planting and fertilizing precautions

Precautions for planting and fertilizing cucumbers in greenhouses should pay attention to cucumbers in greenhouses. Adding organic fertilizers and organic fertilizers not only supplies various nutrients for cucumber growth and development, but also reduces soil bulk density, increases soil porosity, and improves soil physical and chemical properties. Therefore, organic fertilizer plays a major role in the continuous high yield, activation and improvement of soil in cucumber. In production, 2,500 to 3,000 kilograms of fertilized manure or 5000 kilograms of soil manure should be applied.

Rational application of chemical fertilizer cucumber roots are shallow, relatively weak, and excessive fertilization concentration will cause root burning. Cucumber should be eaten with more fertilizers, and the base fertilizer should be 25~30 kg of diammonium and 23~27 kg of potassium sulfate.

During the growth process of cucumber, it is necessary to topdress at any time. The total amount is 47-53 kg of urea and 52-58 kg of potassium sulfate. The top dressing time is generally controlled in the early stage. In the late growth stage, combined with irrigation and picking, the nitrogen fertilizer and potassium fertilizer are used once every 7 to 10 days (or the fertilization with equal nutrient content).

The application of sprayed foliar fertilizer is generally in the period of fruiting, and the nutrient is sufficient in the early stage. After the melon is planted, the reproductive growth is strong and the amount of fertilizer is large. At this stage, the temperature is lower, the root activity is poor, and the nutrient absorption capacity is reduced. To meet the needs of normal melon, the foliar spray fertilizer can supplement the plant. The nutrients needed.

In the case of growth point stagnation in the deep winter season, it is necessary to spray the Harvest No. 1 in the timely manner 800 times, or spray the Yunda ~ 120, love more harvest and other agents to promote the normal growth of cucumber. In the middle and late growth stage of cucumber, the plant grows weakly, and the harvest is 800 times in time to prevent premature senescence of the plant.

The application of biological bacterial fertilizer to increase organic fertilizer and biological bacterial fertilizer, and appropriate reduction of chemical fertilizer is an inevitable choice for the production of pollution-free green food. The newly built shed will apply 8 kg of high-quality bio-organic fertilizer once, which will make the cucumber grow robust, sit more, have long melons, and extend the picking period. (China Agricultural Resources Guide Network)

Recommended reading: What should you pay attention to when planting cucumbers in winter?

"This winter I am going to plant about 1 mu of greenhouse cucumbers. Now Miao Miao has been raised, but the technology for cultivating greenhouse cucumbers is still not very clear. Would you please tell me about it?" Recently, Nanjiang County Agriculture Bureau advanced agronomy When Li Linxiu entered the Jintai Village of Liuba Township, he was called into the greenhouse by Zhang Yuancong, a large vegetable grower. In the greenhouse, Lao Li took a cucumber seedling to be grafted, and in detail gave several farmers a lecture on cucumber cultivation and management techniques.

Clearing greenhouse wreckage

First of all, we must clear the greenhouse wreckage and plough up in advance. Before the planting, the soil is prepared and the base fertilizer is applied. The organic fertilizer is mainly used, and the nitrogen, phosphorus, potassium and micro-fertilizers are combined. Generally, 6000 kg of high-quality farmyard manure, 20 kg of diammonium phosphate and 25 kg of potassium sulphate can be applied per mu. For new sheds, the amount of soil organic matter content is less than 2%, and the amount of fertilizer can be increased as appropriate.

After the whole land is well, the ridges are ditched along the north-south line, and the mulch is covered with large and small sorghum mulch film, and water is immersed under the film by submerged or sub-membrane drip irrigation. The line spacing is 80 cm, the small line spacing is 40 cm, and the ridge height is 20-25 cm.

Sunny morning planting

Planting should be selected on a sunny morning, according to the plant spacing of 30 cm on both sides of the car, according to the "good" shape double-row open hole, pour the seedling water, plant the seedlings, cover the soil sealing hole, the surface of the beak should be higher than the car (ridge) surface 2 cm.

Pay attention to the roots when planting, and do not pollute the graft interface. 3000-3500 plants per acre.

Greenhouse management instructions

1. Temperature and humidity management. During the slow seedling period, the daytime temperature is controlled at 25 °C - 30 °C, and at night, 18 °C - 20 °C. After the seedlings are slowed, the room temperature is controlled at 20 °C - 25 °C and 12 °C - 15 °C at night, and the watering is properly controlled.

After sitting on the melon, the temperature in the morning is controlled at 25 °C - 30 °C, the highest is not more than 33 °C, the humidity is about 75%; the afternoon is 20 °C - 25 °C, the humidity is about 70%; the minimum temperature at night is above 12 °C.

2. Lighting management. The greenhouse should use a light-transparent, non-drip film, and often clean the membrane surface to keep the plastic film clean. During the daytime, the light intensity and time should be increased as much as possible. Even in the snowy days, the straw curtains on the greenhouse should be removed. In the snowy days, the straw curtains can be removed at noon after cleaning the snow. If the time is too dark and clear, the grass curtain should be removed at intervals to gradually increase the light.

3. Water and fertilizer management. After slowing down the seedlings, you should properly control the watering before you sit on the roots and promote the roots. After the root melon is sitting, it is poured into the melon water, and combined with watering to promote the melon fertilizer. In the future, depending on the soil, weather and seedlings, water should be poured once every 10-20 days. The method of dropping under the membrane should be adopted. The watering should be selected on a sunny morning, and the wind should be drained. Each time the water is poured 2-3 times, the fertilizer is chased once, and the topdressing is stopped 30 days before the harvest.

Plants are adjusted in time

When the plant height is about 25 centimeters, the plastic stalks are used to hang the vines. After every 3-5 days, the vines should be circulated once in a timely manner. When the vines are around, the "faucets" should be kept in a plane. Timely removal of tendrils and deformed melons. When there are too many female flowers, appropriate flowering should be done. Usually 1-2 melons per section. When the plant grows at a height of 1.7-1.8 m, it falls, and the vines are carried out on a sunny afternoon, and the diseased leaves and old leaves are removed in time.

This article URL: greenhouse cucumber planting and fertilizing notes winter planting greenhouse cucumber should pay attention to å•¥

CRL-940.-,941

Fladrafinil CRL-40 941 Bisfluroadrafinil