How to increase the number of female flowers in cucumber
Cucumber is the same male and female flower crop, whether it is more female flowers or male flowers, depending on environmental conditions to a certain extent. Therefore, by changing the environmental conditions, the number of female flowers can be purposely increased. In production, as long as the increase in the number of female flowers can significantly increase production. There are several ways to increase the number of female flowers in cucumber: First, chemical treatment: Use 2.010-4 concentration of ethephon (with 40% ethephon 250g and water 50kg) spraying at the seedling stage, or with 0.01% sodium naphthaleneacetate Aqueous solutions were sprayed on 2-3 true cucumber leaves of cucumber, both of which significantly increased the number of female flowers. At the same time, in conjunction with artificial pollination, generally cucumber can increase production by 17-34%. Second, the shade treatment: cucumber is a short-day crop, shorten the light to increase the female flower. The specific approach is: before the formation of cucumber flowers, the use of black paper, straw and other objects on the scaffold shade, the daily sunshine control in 9 hours. Third, increase moisture and nitrogen fertilizer. Cucumbers are grown in a soil with a humidity of 80% more than twice as high as a soil with a humidity of 40%. Providing adequate nitrogen fertilizer in the early development of cucumber can also increase the number of female flowers.
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