When to fertilize cucumbers

Cucumber like warm, intolerant of cold. Suitable temperature is 18 ℃ ~ 32 ℃, cucumber yield, water demand, suitable relative humidity of air is 70% ~ 90%, soil moisture is 85% ~ 95%. Cucumber shallow root system, suitable for cultivation in loose, fertile, well ventilated soil. Cucumber like wet but not waterlogging, like fertilizer but not fertilizer, it is appropriate to choose rich organic matter fertile soil. Generally like pH 5.5 to 7.2 between the soil, but to pH 6.5.

Cucumber reproductive cycle is divided into germination period, seedling period, the first flowering period, fruiting period four periods.

From sowing to the emergence of true leaves for the germination period, generally 5 to 6 days, this period requires high temperature and humidity, in order to promote the seeds early, seedlings, and improve the survival rate. During this period, the nutrient demand is small, generally only need to apply the bottom fertilizer, the bottom fertilizer is usually based on organic fertilizer, generally 4,000 to 5,000 kg mu of well-rotted organic fertilizer, calcium superphosphate 20 to 30 kg.