Cucumber is a boron-tolerant crop, which requires more boron during growth and development, especially during flowering and fruiting period. If the supply of boron is insufficient, it will affect the pollination and fertilization, resulting in melons, melons, reduce the rate of melons; easy to form deformed melons, such as curved melons, sharp-lipped melons, and large-diagulon melons; epidermal corkation, rough appearance, Hollow inside and so on. Therefore, it is necessary to pay attention to supplementing boron fertilizer during cucumber flowering and fruiting period.
When the cucumber seedlings grow to 6-8 new leaves and begin to show buds, supplement the boron fertilizer in time, combine them with flowers and flowers to ensure the growth of melons, spray 0.1% borax solution or 0.1% once every 10-15 days. Boric acid aqueous solution, or 1000 times fluid boron aqueous solution, or 1000 times active boron aqueous solution, etc., mixed with 600-800 times amino acid compound fertilizer solution, sprayed continuously, 3 to 5 times.
Evenly spray all the leaves and buds to start dropping drops of water. Boron fertilizer is most easily absorbed at 8 to 11 am and 16 to 19 o'clock in the afternoon. High temperature and strong sunshine should not be sprayed. In addition, in the live cucumber seedlings or transplanted cucumber seedlings, 0.5 to 1 kg of quick-acting boron per acre is used as a basal fertilizer, which also has a good effect of supplementing boron.
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