First, inappropriate fertilization, resulting in uneven growth Due to hurry, the application of the organic fertilization base fertilizer without adequate decomposed fermentation, resulting in injury roots, is the main reason leading to the growing uneven cucumber. 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.
Second, the ground is uneven, resulting in uneven growing water in the greenhouse when the terrain is low and uneven, so that the plant water supply is not balanced, the terrain is high, the water is low, the terrain is low, the water is more, plus it will be flushed when watering part Fertilizer, which also caused the situation of plants growing uneven. Control methods: Ground leveling, 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 damage, resulting in growing sheds with root knot nematode damage, infestation of cucumber roots, due to varying degrees of harm within the shed indoor nematodes, some places are serious, and some places are light, this will also make Cucumber plants are growing 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 during planting is different, resulting in uneven growth. This situation occurs less often because a lot of bred during the nursery will be spared, but at the seedling stage when severe disease is encountered, the spare seedlings may not be sufficient. However, they cannot but plant seedlings at the neighbor's home, 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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Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.szmeizons.com