How to carry out fertilizer and water management after planting spring cucumber in open field?

After 4 to 5 days of colonization, new shoots were grown in the seedlings, and young leaves appeared at the growth point, indicating that the seedlings had already been regenerated. At this point should be poured a slow seedling water (such as the soil is very wet or late pouring). Adding this time to early spring, the ground temperature is still low, so the amount of watering should not be too large, so as not to significantly reduce the ground temperature, coupled with high soil moisture and cause roots. When the surface is slightly dry, cultivators should be timely and raise the temperature. From the time of colonization and root cultivating, the cultivation and management should highlight a "control" word, more cultivating loose soil, less watering, improve the root growth environment, promote root development, achieve deep rooting, flower bud differentiation, root melons The purpose of stability. However, seedlings should be appropriate. They should be diagnosed at any time according to the length of the seedlings and determine whether or not to water according to the soil dry and wet conditions. If judging only by whether or not the root melon is sitting, it may cause the growth of the seedlings to be obstructed, and instead cause the bitter taste of the melons or root melons to increase and affect the yield. After the root melons are seated and the melon strips are clearly visible, water or fecal water should be poured in time to promote the growth of root melons and melons. After the cucumber enters the result period, the temperature of the outside world is gradually increasing, the growth rate of melon strips and stems and leaves is accelerated, and as the melon strips are continuously harvested, the absorption of fertilizer and water is also increasing. This period should highlight a "promotion" word in management. However, the degree of "promotion" should vary depending on the growth period of the plant and the external environment. In principle, it should be lightly promoted first, followed by big promotion and then small promotion. In the root melon growth period, the plants are still sitting on melons, and the growth of myrobalan is still small. The outside temperature is not high. At this time, the amount of water should not be too large, and the ground can be kept wet. Wax gourd growth temperature during the growing period, light enough to sit in the melon plant, stem and leaf growth, vegetative growth and reproductive growth have reached the top stage, the demand for fertilizer and water gradually increase, this time should be a lot of fertilizer watering, every 1 ~ 2 days 1 water, even 1 day 1 water, watering time should be in the morning. Watering should grasp the principle of a small amount of ground pouring, and do not flood the water. Fertilization is generally applied with water, once clean water, once with fertilizer. Fertilizer application should master the principle of a few times. It is best to increase phosphorus and potassium fertilizer. The amount of fertilizer used is usually 8 kg/mu for urea or 20 kg/hectare for ammonium hydrogen phosphate.

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