Cucumber is often found to have bitterness during planting. The bitterness of cucumber is caused by the fact that the plant contains a substance of cucurbitacin C. Cucumber bitterness is caused by variety and cultivation techniques, and bitter cucumbers are mostly in early spring. Prevent the formation of bitter cucumber, cultivate the vegetative growth and reproductive growth of cucumber, balance the growth of aboveground and underground parts. This is a fundamental measure, and there are also differences among varieties. Today, Xiaobian will introduce you to the production of cucumber flavor. Bitter measures:
1. Choose good varieties.
2, root melon and early melon early harvest, promote vegetative growth, enhance growth potential.
3, high temperature or low temperature cold damage easily lead to increased bitterness of cucumber. Cucumber cultivation in greenhouse in early spring, due to the influence of high temperature or low temperature, will cause disturbance of material metabolism, which will reduce the quality of cucumber. Early spring greenhouses should strengthen the construction of insulation and ventilation facilities to avoid the impact of high and low temperatures.
4, insufficient light, so that the quality of cucumber decreased. In the early spring and rainy days, the lack of light, combined with low temperature hazards, the bitterness of cucumber becomes thicker. Therefore, in early spring greenhouse cultivation of cucumbers, to avoid the lack of sunshine caused by the decline in quality. As far as possible, the cultivation should be covered with no drip film, and the dust on the shed film should be washed to increase the light transmission amount of the shed film.
5, the root of the cultivator is easy to produce bitter melon. In early spring, in order to improve the ground temperature and promote root development, deep cultivating is often carried out. Sometimes the root elongation is neglected, and the roots of the cultivating are more, the ability of the roots to absorb nutrients is reduced, and the nutritional status of the plants is poor, resulting in a decline in the quality of the cucumber. Therefore, when cultivating loose soil, do not damage the root system.
6, to water properly: small water and water, keep the ground to see dry and dry, to ensure the full growth of cucumber throughout the growth period, so that the normal growth and development of the melon, early spring greenhouse cucumber should not excessively control water, promote the smooth progress of biochemical reactions. Strictly prevent the decomposition of lipase indirectly due to the water deficiency in the plant, to reduce the formation of cucurbitacin C, reduce the concentration of cucurbitacin C, and prevent cucumber from suffering.
7. The principle of fertilization is small and diligent: in the base fertilizer and topdressing, nitrogen nutrient excess tends to increase the concentration of cucurbitacin in cucumber, while at the same time, lack of fertilizer, malnutrition, plant senescence, etc. during cultivation, it is easy to produce bitterness. In cultivation, reasonable supply Various mineral nutrients, avoiding partial application of nitrogen fertilizer. Cucumber needs to be fertilized 5-6 times during the whole growth period, enter the early stage of the meloning stage, combined with watering 2 times of water to chase 1 time of fertilizer, and the season of melon can be used to chase 1 time of fertilizer, 1 time per mu. -6kg, potassium sulfate 4-5kg, also pay attention to the application of trace elements.
The bitterness of cucumber is mainly the cucumber in the greenhouse. Because it is already summer, the growth of greenhouse cucumbers has entered the final stage, which will cause the bitterness contained in the cucumber to rise, and the cucumbers growing in the open will generally not suffer. In fact, bitter cucumber does not cause damage to human health. The method of bitterness is very simple. For example, picking cucumbers for 5-6 minutes, or after frying, can make bitterness disappear.
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