First, reasonable removal of excess female flowers. The cultivation of summer squash in the greenhouse, seedling development period, mostly in the short-day, low-night temperature environment conducive to the formation of female flowers, so generally dwarf type summer squash varieties, grow to 3-4 true leaves, there are female flowers per leaf node Occurs, even a section of multiple female flowers, and the knots have female flowers. Let these excessive female flowers let their growth and development, it will inevitably consume a lot of organic nutrients, competition in nutrients, affecting the growth of plants and young melons, but also cause a large number of melons, so that a serious decline in production, economic life is shortened. Therefore, too many female flowers must be eliminated early to reduce nutrition competition and promote seats. The evacuation of female flowers should be sparse when it is just revealed. The number of sparse female flowers should be determined based on the growth of the melons. Weak growers should first remove the root melon, and then leave a female flower every three quarters or so. Those who grow strong must also be sparse. The root melon can be left, but early harvesting should be carried out, leaving a female flower every two or so quarters. And should be adjusted according to the trend of melons, melons in time to adjust the number of melons, as far as possible to reduce unnecessary nutrient consumption, to maintain the strong growth momentum of melons, do a melon into a melon.
Second, timely removal of disease, residual, old leaves and lateral buds, tendrils. Zucchini leaves large, long petiole, easy to shading each other, it should be the disease, residual leaves and the lower leaves as soon as possible to remove the yellow leaves, so as not to cause disease and consume nutrients. The loquat leaves should be removed from the base of the petiole and do not use scissors to cut the leaves to prevent infection. A zucchini generally only retains 12-15 leaves. Zucchini is dominated by the main vine, so the main vine should be maintained and the lateral buds should be wiped out as soon as possible. However, if the number of female vines is relatively small, when the female flowers on the side branches are just exposed, one leaf of the female flower remains topping, allowing it to produce melon and increase yield. Tendril growth also consumes nutrients and should also be removed as soon as possible.
Third, condolences, loitering and burying. Zucchini cultivated in the greenhouse, high density and long life cycle, in order to ensure that plants receive good light, must be condolences, the sling tied at the base of the melon, with the growth of the stem, so that the sling and the stem entwined with each other You can. For ease of management, the height of the vine stem should be the same. After the larvae grow taller, they should also pay attention to desolate, so as to prevent the larvae from getting too high and worsen the indoor lighting conditions. After the vernal equinox, the temperature rises and the ventilation increases. The mulch can be peeled off and buried. After the old leaves are removed, the vines burying the vines are buried in the soil. The burial mounds should be centered on the roots and be oriented in the same direction. Round pressure vines. Budding can promote the adventitious roots of stems, fertilizer and water absorption, which will help prosperous growth in the later period.
Fourth, plant updates. In the greenhouse cultivation of zucchini, long growth period, the late plant into the aging period. If the main vine is aging or has poor growth, it is optional to leave 1-2 side vines and other female flowers. Cut the original main vine to promote side vine growth.
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