How to tell whether the cucumber is deficient in fertilizer from the plant
Cucumber needs more fertilizer in its life. In addition to applying sufficient amount of base fertilizer (including farm manure and chemical fertilizer), cucumber should be topdressing by stages according to cucumber growth or soil fertility. Some vegetable farmers may rely on habits, while others may rely on experience. In fact, the simplest and more accurate way is to distinguish from the morphological changes of plants. Only in this way can we have a clear target and make up for what we lack. Symptoms of lack of nitrogen fertilizer: from the lower leaves to the upper leaves gradually become smaller and yellow. At the beginning of the yellowing between the veins, the veins are prominent and visible. At last the whole leaf turned yellow. There are few sitting melons, and the growth and development of melons and fruits are poor.
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How to prevent and control acute dead cucumber seedlings in greenhouse
In the process of out-of-season cucumber cultivation covered with plastic film, when the cucumber enters the flowering and fruiting stage, there are often cucumbers which are growing well in the previous period, and the acute death of seedlings suddenly occurs within a few days. This kind of cucumber acute atrophy, the disease is rapid, difficult to prevent and cure, its formation reason: weather.
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The main points of topdressing cucumber
Cucumber is very sensitive to fertilizer, topdressing should pay attention to the following points: 1. Before planting to sitting melon, you should look at seedling topdressing and control the amount of fertilizer. In the early stage of cucumber growth (usually within a month after planting), the soil temperature is still low, such as fertilizing or watering too much, "rotten roots" will occur, which is due to the weak activity of the root system.
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