“Now, some of the watermelons in my shed have been given powder, and some haven’t started yet. The flowering period is very different. But the shed is very dry. You said I am watering or not watering well?†Recently, the author In an interview with Baocheng Street, Changle County, Shandong Province, a local melon farmer asked.
It is understood that, due to the influence of bad weather in the previous period, Changle Baocheng streets and other places now have irregularly growing watermelons. As a result, the opening time of female flowers in watermelon is relatively large, and the overall flowering period is prolonged. Because the current weather is fine and the pollination time is long, some watermelons are very dry after pollination. At this time, the farmers were in an awkward situation: On the one hand, they feared that the plants that had not been pollinated after the watering had become empty, and could no longer sit on the melons. On the other hand, it will take about a week after all the watermelons have been granted. The soil in the shed is very dry. The late watering can't satisfy the water requirement when the watermelon swells, and the excessive drought has a greater harm to the growth of the watermelon. .
Although watermelon is a drought-tolerant crop, watermelons begin to enter the fast-growing period after pollination for 5-6 days. During this time, watermelons require a lot of water and nutrients. If the soil is too dry, water and fertilizers are difficult to absorb in roots, and photosynthesis of plants will be greatly affected. Inadequate supply of water and nutrients, the growth of watermelon is greatly affected, and the yield will be very low.
Moreover, excessive drought in the soil will also affect flower bud differentiation and fertilization in watermelon plants. Because watermelons differentiate from flower buds to pollination and set fruit, they require strict temperature and humidity. Excessive drought in the soil can reduce male pollen and female flowers, affect fertilization after pollination, and then affect melons.
Therefore, it is wrong to water without watermelon in the flowering period. It is correct to timely watering and pouring small water. If the watermelon plants are very different, they can also selectively water the watermelons sitting in the early morning. To prevent empty spots and increase fruit setting rate, 10 mg/L 2,4-D can be sprayed with 100 mg/L naphthalene acetic acid solution after the pollination, or the female ovary can be smeared with a brush.
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