First, inappropriate fertilization, resulting in uneven growth
Due to the hurry of time, the application of organic manure without adequate decomposing fermentation, resulting in injury to the roots, is the main reason leading to the uneven growth of cucumber in the area. After some cucumbers were burned, the seedlings were growing unevenly. In addition, the burning of roots caused by chemical fertilizers is mainly caused by excessive application volume.
Control methods: For the burning of roots caused by the above reasons, it is necessary to apply a fully fermented and decomposed organic fertilizer, and apply as early as possible. The amount of chemical fertilizer applied should not be too large, and the amount of chemical fertilizer should not exceed 30 kg per time. The use of chemical fertilizers after the temperature is lowered will stimulate the root system and cause plants to be affected.
Second, the ground is uneven, resulting in uneven growth
When watering, the terrain in the greenhouse is low and uneven, which results in unbalanced water supply to the plants. When the terrain is high, the water is low, and when the terrain is low, the water is high. In addition, part of the fertilizer is applied during watering, which causes the plants to grow unevenly. The situation.
Control methods: leveling the ground, combined with water pouring. Avoid some seedlings pouring, and some can't be poured. At the same time, it should prevent the accumulation of stagnant water at the front face of the greenhouse.
Third, root knot nematode harm, resulting in growing
Some sheds have root knot nematodes infestation and invade cucumber roots. Due to the varying degrees of harm to nematodes in sheds, some are severe and some are light, which can also make cucumber plants grow unevenly.
Control methods: 1.8% of avermectin can be used to irrigate the roots from 2000 to 3000 times. Using avermectin flushing, this method can, but the effect is not obvious. Root can be treated after water, 200 ml of liquid per plant.
Fourth, the size of seedlings when planting is different, resulting in uneven growth
This situation occurs less often, because a lot of spare time will be bred during the nursery. However, when serious diseases are encountered at the seedling stage, the spare seedlings may not be enough, but they cannot be planted and will be borrowed from neighbors. Point seedlings are planted, which causes the cucumbers to grow unevenly.
Control methods: When planting, the seedlings should be evenly distributed, and fertility material can be added to the uneven growth to promote uniform growth.
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