Topdressing of high-yield cucumber in greenhouse is the key to prolonging the high-yield period and increasing production and income. How should the cucumber in the greenhouse be topdressed? Here is a brief introduction to the topdressing technology of greenhouse cucumbers.
Cucumber topdressing method:
Method 1: Method of fertilizing before planting to melon:
In the early stage of cucumber growth (usually within one month after planting), the soil temperature is still low. If there is too much fertilization or watering, “bad roots†will occur. This is because the root activity is weak and cannot be fully absorbed, resulting in soil water accumulation. More, the air is reduced, so that the roots suffocate and rot; the upper part of the ground is characterized by thin leaf flesh, leaf color is not bright, and easy to wilting. Therefore, cucumber can not be fertilized and watered too much at one time, and the method of topdressing with “thin fertilization and small amount of meals†is applied.
Method 2: Fertilization method from cucumber young fruit to harvesting period:
Cucumber is a kind of vegetable with shallow roots and high fertilizer content. In the production process, topdressing should be added during the period from the young fruit to the harvesting period to promote the growth and development and the nutrient demand during fruit expansion.
The shed plant cucumber topdressing should not be ridged or ditched. It must be applied with the ditch. Generally, the amount of fertilizer should not be too much. The average cucumber should be chased by 1.5 grams per plant. At the peak of picking cucumber, every time the water is poured, It is necessary to mix in the fertilizer water so that it does not produce fat and can produce high yield.
In the middle and late stages of cucumber growth, when the leaves were thin and yellow, 15 kg of urea was used to exchange 15 kg of water, and the leaves were sprayed after being fully stirred and dissolved, once every 5-7 days, for 3-5 times.
Method 3, melon leaf surface topdressing method:
Cucumber not only absorbs nutrients from the soil from the roots, but also absorbs mineral nutrients from the foliage to promote fruit development. Generally, in the middle and late stages of production, it is found that the leaves are thin and yellow when the nitrogen fertilizer is applied. 50 g of urea is used to fully melt and melt the 15 kg of water, and the leaves are sprayed. The skin is sprayed 3 times to 5 times every 5 days to 7 days. The effect is very good. it is good. However, in general, pesticides cannot be added to the fertilizer at the same time, and they are easy to produce phytotoxicity or drug failure. When spraying at the same time, spray the fertilizer in the morning.
Notes on cucumber topdressing:
Cucumber topdressing avoids fertilization in the case of wet soil. It is easy to cause female flower differentiation, deformed melons, causing physiological diseases such as defoliation, falling flowers and melons. Fertilization under high temperature conditions, the water evaporation of the leaves of the plants is large, which will affect the fertilizer effect. . In addition, the fertilization time is appropriate in the morning or evening.
About the cucumber top dressing Xiaobian introduced this. In the process of planting cucumber, topdressing is a key step, which is often related to the quality and yield of cucumber. Therefore, everyone should scientifically grasp the principle of cucumber topdressing.
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