Cucumber is a physiological disease, which often occurs during the growth of cucumber, which seriously affects the quality and yield of cucumber, causing great economic losses to farmers. Therefore, farmers should take measures to strengthen the prevention and control of cucumber disease. So, what is the reason? How to prevent it?
What is the reason for cucumber curved melon?
1. Too many leaves are too early;
2. Excessive results per plant in the previous period;
3, small flowers in the ovary when flowering, the long quality is not good, even if it blooms, the nutrients obtained later are less, which easily cause the benton;
4, the normal long fruit-shaped melon strips, when the fruit is inflated, it takes a certain time, the conditions are slightly bad, it will form a curved melon, so it is very important to use fertilizer in the later stage;
5, the results of the initial growth of normal melon, if the nutrients can not be supplied in time, will soon form a curved melon;
6, the long fruit-shaped cucumbers formed, when encountered in the expansion of the leaves obstruction, will also form a curved melon;
7. Potassium deficiency may occur in potassium deficiency and boron;
8, sometimes too much or a single use of nitrogen fertilizer or chicken manure, pig cow dung, potassium, phosphate fertilizer is not enough, it is also prone to cucumber curved melon.
How to effectively prevent and cure?
1. Don't take too much of the bottom leaves too early. The yield of cucumber depends mainly on the photosynthesis of the leaves to increase the yield. As long as the bottom leaves do not yellow, generally do not remove them too early, unless the bottom leaves are infected or lose normal function, they can be removed.
To prevent premature aging of cucumber leaves. It is necessary to use NPK and microbial fertilizers as well as multi-element mineral fertilizers and organic fertilizers in fertilization. The previous base fertilizers have used organic fertilizers and NPK fertilizers, and now it is possible to apply microbial agents per acre. The kilogram and multi-element mineral fertilizer is 20-30 kg, which promotes the growth of cucumber roots, supplements nutrients, and prevents cucumber roots and premature senescence of leaves.
2, watering should be diligent, but each time watering is less. The interval between watering in the high temperature period should not be too long. Do not exceed 32 °C during the day. Generally, it is controlled at 25-30 °C during the day.
3, the yield per plant can not be too high, too high single plant yield will increase the burden of the plant, the early period of excessive melon or picking melon is not timely, the leaves aging is fast, easy to form curved melon.
4. Scientifically supplement the whole nutrient element fertilizer to ensure the normal growth of the plant.
5. Remove the bent bones that have occurred in time, or use a small stone to sink the bottom to make it straight; in addition, apply 30 ml / liter of gibberellin solution to the inner surface of the curved melon, and after a few days, the melons It will straighten: You can also use the blade to draw a stencil on the back of the curved melon. Then cross-cut 1 to 3 shallow prints, no more than 0.5 cm deep and 2 to 5 cm long.
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