What are the fertilizer requirements for cucumber growth? How to manage fertilization?

The growth and development of cucumber plants have a large demand for nutrients, and the characteristics of root fertilizer absorption and poor fertilizer tolerance determine the special requirements for fertilizer and the strict restrictions on fertilization methods when planting cucumbers.

Entering the melon-setting stage, the renewal amount of cucumber rises rapidly, and the demand for fertilizer reaches its peak in the peak period of melon-bearing period, with the demand for nitrogen accounting for 50% of the total fertilizer demand, phosphorus accounting for 47% of the total fertilizer demand, and potassium accounting for 48% of the total fertilizer demandIn the process of growth, it is necessary to continuously provide sufficient organic nutrients to meet the needs of continuous growth and fruiting, and it is afraid that the concentration of soil solution is too high and causes root burning. The soil adaptation range is the most suitable in the pH value, and the adaptation range is in the pH 4 and <>

Seedbed fertilization should be mainly carried out according to the growth needs of cucumber seedlings and the characteristics of root development. The growth of cucumber at the seedling stage is small, and the amount of fertilizer required is small. However, the seedling stage is a critical period of growth and development, and various nutrients must be comprehensive and reasonable.

Cucumber in the fruiting period is vegetative growth and reproductive growth at the same time, is the fruit formation of a large number of and vegetative organ growth peak, water and fertilizer need more, only to meet the water and fertilizer **, in order to promote the seedlings and melons more, continuous fruit.

There are many types of nitrogen fertilizers on the market, such as ammonium nitrogen fertilizer (ammonium sulfate, ammonium bicarbonate, etc.), nitrate nitrogen fertilizer (calcium nitrate, potassium nitrate, etc.), and ammonium nitrogen fertilizer (urea, etc.), but the application of nitrate nitrogen fertilizer to cucumber is more conducive to rapid growth, and the absorption capacity is weak in the early and middle and late stages of cucumber plant growth, and the effect is better when we carry out foliar topdressing. Spraying potassium dihydrogen phosphate at seedling stage can also promote female flower differentiation. Foliar sprays can be used in combination with sprays.

The nutrients required by cucumbers in their lifetime are mainly composed of nitrogen, phosphorus, potassium, sulfur, magnesium and calcium; Zinc, copper, iron, molybdenum, manganese, aluminum, etc. Among them, nitrogen, phosphorus, and potassium are mainly supplemented by chemical fertilizers, and sulfur, magnesium, calcium, zinc, copper, iron, molybdenum, manganese, aluminum, etc. do not need to be added.

According to the different growth stages of cucumbers, the number of fertilization times and fertilizers used in each period are also different, in order to improve the fertilization efficiency, it is generally recommended to use water-soluble fertilizers with better absorption as the main fertilizer for cucumber fertilization.

In the planting process of cucumber, top dressing is very critical, it is related to the quality and yield of cucumber, cucumber is a shallow root system, more fertilizer is required, but if the top dressing is too much and too concentrated, it is easy to cause plant growth, affect reproductive growth, and even cause flowering, melon and other phenomena. So how, exactly?

1. Base fertilizer: It is recommended to use well-rotted sheep manure to supplement soil organic matter, improve soil fertility, and not burn or hurt roots, which is conducive to slowing down seedlings.

2. Flowering period: spray organic titanium boron calcium foliar fertilizer before and after flowering, supplement the boron calcium elements required for cucumber growth, improve photosynthesis, and use it 4-6 times throughout the process, which is more conducive to fruit expansion in the later stage and effectively reduces the occurrence of fruit cracking and fruit dropping.

3. Fruit expansion period: The amount of fertilizer required during this period is relatively large, and the amount of nitrogen fertilizer must be controlled. At this time, it is recommended to use low-phosphorus, medium-nitrogen, high-potassium suspended carbohydrate-water-soluble fertilizer to supplement nitrogen, phosphorus and potassium, and nitrogen fertilizer is not excessive, which supplements nutrients for the puffed fruit.

Cucumber and yellow leaves are prematurely senescence, so we must take care of the root system, strengthen management, and spray fertilizer in time.

Top dressing at the peak melon stage. Cucumber fruiting period is longer, with the harvest of cucumber, nutrients continue to be consumed, and it is necessary to continuously apply foliar fertilizer to ensure nutrients**, otherwise cucumbers will be prematurely senescent due to lack of fertilizer, the effective harvest period will be shortened, and the yield will decline. It can be topdressed once every 10 days or so, or once every 2 harvests according to the harvesting situation.

In order to promote the expansion of melons and fruits, improve yield and quality.

Cucumber planting should be added to the soil organic fertilizer as a base fertilizer can well promote the growth of plant rhizomes, after planting every half a month is a fertilizer, fertilizer choice compound fertilizer. Nitrogen fertilizer can be applied when the cucumber is ripe to increase the fruit setting rate.

First of all, there is sufficient water in the soil, and the soil needs not to be too wet In the early stage, about 2000kg of organic fertilizer and 25kg of compound fertilizer can be applied per mu, after the cucumber enters the vine pumping period, the demand for fertilizer increases, and a small amount of top dressing is required many times, generally speaking, top dressing is required every 7-8 days, cucumber fruiting period is in a period of high temperature, in the process of applying ammonia fertilizer, ammonia fertilizer damage is easy to occur, so cucumber top dressing in summer, it is best to fertilize at night, and water and ventilate in time.

Cucumber is a shallow-rooted crop, fertilizer-loving, fertilizer-tolerant, fertilization is mainly organic fertilizer, supplemented by other fertilizers, and compound fertilizer; Single-element fertilizer is supplemented, mainly based on basal fertilizer, supplemented by top dressing; Fertilization should limit the application of chemical fertilizers as much as possible, and it is necessary to use chemical fertilizers, and to apply some chemical fertilizers selectively to a limited extent, and should achieve balanced fertilization, fertilization should fully develop and utilize organic fertilizer sources in the local area, and rational recycling of organic fertilizers should make full use of plant residues, plants, animal manure, manure, etc., and continuously improve the content of organic matter in the soil.

Fertilization is mainly organic fertilizer, supplemented by an appropriate amount of chemical fertilizer, the application of organic fertilizer can improve the environmental conditions of the soil, increase the content of soil organic matter, improve the soil structure, adjust the pH value of the soil, provide a suitable environment for microbial activities in the soil, make the nutrient balance, create a good growth environment for the growth of cucumber, and also improve the quality and palatability of cucumber, the normal growth and development of cucumber, and increase the content of trace elements in the product; The use of fertilizers should be based on the nutrient needs of the crop while maintaining the fertility of the soil and reducing nutrient loss;

First, cucumber is a fertilizer-loving, fertilizer-tolerant shallow root crop. Organic fertilizer is the main fertilizer, other fertilizers are supplemented, and Hefei Yuanfu fertilizer is the main fertilizer. It is mainly single-element fertilizer, basal fertilizer, and topdressing.

Fertilization should be limited as much as possible. It is true that there is an appropriate use of chemical fertilizers. It is necessary to make use of some of the chemical fertilizers selected by Pang **, carry out balanced fertilization, fully develop and utilize local fertilizers, improve the content of soil organic matter, and make full use of plant residues, plants, livestock and poultry manure, fertilizers, etc.

Second, fertilization can improve the stress resistance and disease and pest resistance of cucumbers. Proper fertilization can balance and improve the nutrients necessary for cucumber growth**. Plants thrive, crops have weak disease resistance, and reducing the use of pesticides is conducive to the production of green and high-quality products.

For example, the soil contains enough phosphorus and potassium to help store the mineral sugars and soluble proteins in crops, which can precisely improve and promote the permeability of cells and reduce susceptibility to frost. For example, the application of humus fertilizer can reduce the evaporation of crop water by adjusting the closure of the valve.

The nutrient demand of cucumber in the early growth stage was small, and the nutrient absorption increased significantly with the advancement of the growth period, and reached the peak absorption at the melon setting stage. Cucumber is a nitrate nitrogen crop, when only ammonium nitrogen is supplied, the leaves become smaller, the growth is slow, the absorption of calcium and magnesium decreases, and the physiological obstacle of calcium deficiency often occurs, so that the yield is reduced. The amount of phosphorus absorbed by cucumber is less at the beginning, and it increases at the fruit expansion stage and harvest stage.

Cucumbers absorb the most potassium, followed by nitrogen.

Cucumber is suitable for cultivation on loose, fertile and well-permeable soil, and the clay soil is not conducive to the development of cucumber roots, and the soil with high organic matter content can balance the contradiction that cucumber roots like moisture but not waterlogging, and like fertilizer but not fertilizer. The growth cycle of cucumber is roughly divided into germination stage, seedling stage, vine extraction stage and flowering and melon setting stage.

Base fertilizer is an important nutrient for the growth and development of cucumbers**, and organic fertilizer is generally the main fertilizer. The amount of ammonia fertilizer should not be too large, and too much human manure and urine should not be used, and chlorine-containing fertilizers (such as ammonium chloride, potassium chloride, etc.) should not be applied.

First prepare a variety of fertilizers, then fuse them, and add cucumbers every morning to absorb faster, which is a more reasonable way.

The bad way is to fertilize the cucumber every time it grows for a period of time according to the growth cycle of the cucumber, which can make the cucumber grow better.

Choose a fertilizer suitable for cucumbers, and at the same time, you should also pay attention to the lighting problem of cucumbers, but also pay attention to the soil absorption of cucumbers, and water cucumbers regularly.

Apply a large amount of nitrogen fertilizer at once. Cucumbers require 17 elements to promote growth and development. Among them, the content of nitrogen, phosphorus and potassium is relatively large.

Therefore, a large number of elements are used when fertilizing. Note the combined application of nitrogen, phosphorus and potassium. Some vegetable farmers often apply large amounts of nitrogen fertilizer alone.

It grows quickly and rises early, but it elongates easily, which is extremely detrimental to flowering and fruit development. According to the investigation and research of scientific and technical personnel, cucumbers are based on nitrogen nutrition in the front setting of melons, and absorb potassium sharply after setting in the back of melons. The nitrogen and potassium content of winter melon in the dehairing stage are basically the same, and the absorption of winter melon has been until the expansion stage.

At its peak, the uptake of nitrogen and potassium is significantly reduced and the uptake of phosphorus is relatively increased during the ripening period of melons. The ratio of nitrogen, phosphorus and potassium at the seedling stage should be: 1:

The growing season of the vines should be: 1:. The growth period of melons is:

The application of chlorine-containing fertilizers to watermelon is a chlorine-free crop. The application of chlorine-containing fertilizers (such as ammonium chloride, potassium chloride, etc.) will affect the accumulation of sugars and weaken the taste of melons. The application of organic fertilizers is also delicate.

Overuse of human feces and urine. Excessive use of human feces and urine can easily lead to plant growth and difficulty sitting on melons. Very thick and sour in taste.

Fourth, fertilize the surface of the soil. To fertilize the topsoil, it is necessary to pay attention to deep application, and after fertilization, the soil should be covered in time, especially nitrogen fertilizer. If surface fertilization is applied, nitrogen can easily evaporate and produce ammonia, which can damage leaves and reduce fertilizer utilization.

Fertilize on rainy days. Some farmer friends like to fertilize on rainy days, thinking that cucumber roots are easy to dissolve and absorb fertilizer when it rains after fertilization, but this is not the case。Fertilization in rainy weatherIn rainy weather, the air humidity is high and the soil moisture content is high.

When fertilizing at this time, not only is the fertilizer easy to lose, but the cucumber is also easy to grow. Fertilize close to the roots. The fertilizing part is too close to the roots.

The fertilized part of the watermelon is usually required to be about 10 cm away from the taproot. Being too close to the roots can easily burn the roots and affect the growth of the plant.

Top dressing during drought. The drier the weather, the lower the soil moisture content. At this time, the application of chemical fertilizers will increase the concentration of aqueous solution in the soil, and the cytoplasmic aqueous solution of the root cells will penetrate outward, causing the plant to die due to physiological water shortage.

During the growth of cucumbers, if the amount of fertilizer is large, it will increase the salinity in the soil, therefore, when the cucumber absorbs water and fertilizer, it will hinder the growth of the cucumber, which will greatly affect the growth of the cucumber, and the result will be abnormal. Therefore, when topdressing, it is necessary to pay attention to the reasonable ratio of nitrogen, phosphorus and potassium, especially the proportion of phosphorus and potassium fertilizer according to the growth period.

1. After the first melon picking, top dressing once, and 20 kg of potassium sulfate compound fertilizer per 667 square meters is applied.

2. After entering the peak harvest period, a ditch is made in the middle of the furrow, 15 kg of potassium sulfate compound fertilizer is applied every 667 square meters, and the soil is covered after application. 3. In the later stage, combined with spraying for extra-root topdressing, such as spraying potassium dihydrogen phosphate, magnesium sulfate, boron and other trace element fertilizers or 1 urea solution to promote the growth of cucumbers.

4. For the plants that are robust and vigorous, the amount of topdressing should be appropriately reduced, and the amount of fertilizer and the number of topdressing should be increased for the plants with weak growth.

1. If the organic fertilizer is applied too much during planting, the concentration of soil solution is too high, the fertilizer is not rotten or finely broken, resulting in the extravasation of root water, and the soil in the shed is not watered in time after planting, and the soil in the shed is dry, it will form a root-burning flower topping, the root system and leaves turn yellow, the leaves and leaf veins shrink, and the seedlings do not grow. 2. Excessive application of nitrogen fertilizer, early application of fertilizer and water for the first time, sufficient water, or too dense planting, insufficient light, high night temperature, small temperature difference between day and night, etc., may cause the phenomenon of plant growth. 3. Adopt formula fertilization, balanced fertilization, increase organic fertilizer, pay attention to the combined application of nitrogen, phosphorus and potassium fertilizer, stabilize nitrogen, increase phosphorus, supplement potassium, and apply trace element fertilizer in an appropriate amount.

In addition, it is necessary to take measures such as reasonable watering and temperature control.

Cucumbers require more nitrogen and potassium fertilizers. Moderate fertilizer is beneficial for promoting the growth of cucumbers, but if too much fertilizer is applied to cucumbers, it will harm the growth of cucumbers.

Cucumber balanced fertilization, cucumber fertilization needs to pay attention: cucumber fertilization can be transplanted, combined with watering top dressing once base fertilizer, 1 mu with 10 kg or so. From the gradual growth of the root melon to the late harvest of the fruit, it is necessary to fertilize several times.

Each time 1 mu with 3 4kg of base fertilizer, in which the melon period should be applied once heavy fertilizer, 1 mu can be 45% compound fertilizer 15 20kg. For cultivation in protected areas, fertilization should be done with a small amount of meals, and attention should be paid to water injection and salt pressure to prevent cucumbers from being damaged by pickling.

The use of organic fertilizer can improve the natural conditions of the soil, enhance the soil moisture content of the soil layer, improve the soil texture, adjust the soil pH value, give the theme activities of microbial strains in the soil suitable for the natural environment, make the supply of nutrient balance, create a good living environment for the growth of cucumber, and also improve the quality and taste of cucumber, the normal growth and development of cucumber, and increase the content of trace elements in the commodity; Organic fertilizers should be applied according to the nutrient requirements of crops, while maintaining soil fertility efficiency and reducing nutrient outflow.

Cucumber is a fertilizer-loving, fertilizer-tolerant, shallow-rooted crop. Organic fertilizer is the leading, other chemical fertilizers are assisted, and Hefei Yuanfu fertilizer is the leading. Monoelement fertilizer is the dominant one, the base fertilizer is the dominant fertilizer, and the fertilization is supplemented.

Fertilization should be limited as much as possible. There is indeed a moderate application of organic fertilizers. It is necessary to use the huge selection of organic fertilizer, carry out balanced fertilizer, fully develop local chemical fertilizer, improve the soil moisture content of the soil layer, and flexibly use green plant residue, green plants, livestock and poultry manure, chemical fertilizers, etc.

The use of available chlorine fertilizers (such as ammonium chloride, sodium chloride, etc.) will affect the accumulation of sugar, so that the flavor of cantaloupe is weakened. The use of organic fertilizers is also chic. Excessive use of human feces and urine.

Excessive use of human excrement and urine can easily cause greenery to emerge and make it difficult to sit on cantaloupe. Very thick and sour in taste. Fourth, fertilize the surface layer of the soil layer.

It is necessary to fertilize the surface soil layer, pay attention to furrow application, and be sure to cover the soil layer after fertilization, especially the base fertilizer. If top-fertiliser is applied, nitrogen evaporates easily and nitrogen dioxide appears, which can harm leaves and reduce fertilizer efficiency.