There are roughly three causes of cucumber bitterness: the genetic inheritance of the varieties, the abrupt changes in environmental conditions, and uncontrolled cultivation and management. To prevent cucumber bitterness:
Choose a good species to avoid the use of dark green varieties, because the dark green leaves of cucumber, its high content of bitter, should choose the lighter color of the leaf. When the ground temperature in the apt greenhouse is lower than 13°C for a long period of time, the roots are stunted, the absorption capacity of the fertilizer and water is weakened, the melon strip growth is delayed, and the accumulation of bitterness is increased, and the appropriate temperature should be controlled at about 22°C.
Less nitrogen and nitrogen fertilizers promote dark green leaves and should be applied less. Can be more cooked rotten, organic fertilizer and phosphorus potassium fertilizer. Do not mix chicken manure when applying manure, because chicken manure makes it easy for cucumbers to become bitter.
Magnetizing water A magnetizer is installed at the outlet of the pump to magnetize the irrigation water. The cucumber watered by the magnetized water has good growth and strong disease resistance, which can prevent bitterness from accumulating in the melon strips.
When shed smoked seedlings have 2 to 3 true leaves, light smoke (combustion of straw and straw) is kept in the shed and enclosed for 2 to 3 days and nights. This can increase the number of female flowers and increase the number of strong melons and reduce bitterness accumulation.
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