At present, all of the watermelons in the arch shed in Longde County have been planted. The field management should be strengthened and the following measures should be taken:
1, put seedlings, seedlings, fill seedlings, ensure that the whole seedlings
Canopy watermelon seedlings 7 days after sowing, after emergence with a blade in the planting pit was cross-shaped cut into the film, but this time the melon seedlings are still growing in the planting pit, until the melon seedlings quickly to the film, that is broken film seedling. And sealed with fine sand, to prevent the film under the hot air burning seedlings, all fields after the Miao Qi Qi and a true leaf seedlings when the seedlings. The line spacing of watermelon is larger than that of other crops, and the number of cultivated plants per unit area is small. When the seedlings are grown, the distance between the plants and the plants must be maintained, and the distance between the plants and the plants should be maintained. Species. There are two ways to make up the seedlings: one is soaking and seedling replanting, and the other is seedling transplanting to make up.
2, top dressing
(1)Fertilizer: In the beginning of watermelon extension, one meal is finished and no fertilizer is applied afterwards. The purpose of this fertilization is mainly to prevent the base fertilizer fertility, premature aging of defertilization.
Fertilizer can be mixed with diammonium or other high-quality farmyard fertilizer into diamine 20 kg/mu, or ternary compound fertilizer 35 kg/mu. Roots 10-15 cm away, depth 15-20 cm, apply water immediately after fertilization.
(2) Root dressing: Generally 2-3 times. For the first time in 3-5 true leaves, the concentration of potassium dihydrogen phosphate 0.3%, urea 0.2%, the time after 5 pm is appropriate; the second time in the baby melon fist size, the third time in the When the size of the melon bowl is carried out, the concentration and time are the same for the first time.
3, irrigation and drainage
(1) Irrigation: The watermelon is hi dry and resistant to drought, so it must be timely and appropriate in the time and frequency of irrigation.
Irrigation standard: Observe the leaves of the field at about 1:00 o'clock noon. If the melon leaves are in a state of wilting for a while, they can return to normal in the morning and evening. You can test the soil by hand, and you can not poop into groups. At this time, irrigation can be performed, but no irrigation is performed. . After irrigation, the amount of irrigation water should be used to control the humidity in the field. If the soil is not short of water, it can be properly lightly fed, and must not be flooded.
In the first 5-7 days before the opening of the female flower, no irrigation is usually conducted to prevent the vine leaf from causing flowering and fruit falling. When the fruit is close to maturity, the irrigation is controlled.
(2) Drainage: If there is accumulated water in the water inlet line of the heavy rain arch shed or when water is poured into the water, it must be discharged. Otherwise, it will cause soil oxygen deficiency and lead to the death of the quail.
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