Spinach turning green management heavy water fertilizer

Spinach is rich in nutrients, stems and leaves soft and smooth, delicious and fresh, rich in vitamin C, carotene, protein, and iron, calcium, phosphorus and other minerals. Spinach is available in the early spring off-season and is one of the vegetables that people love. The listing period of overwintering spinach coincides with the off-season season of early spring vegetables, therefore, it brings abundant economic benefits to farmers.

In the production process of overwintering spinach, nitrogen, phosphorus, and potassium are required for complete fertilizer, such as inadequate water and fertilizer supply and malnutrition, the growth is weak, the plants are thin, the leaves are thin, and the taste is astringent. For the sown fields, we must choose water retention, fertilizer conservation, and sandy loam rich in organic matter. Overwintering spinach has strong cold tolerance and long growth period. Therefore, it is necessary to grasp the management of wintering spinach.

The turnaround time for spinach is approximately one month from the equinox to the trough (from March 20 to April 20). In normal climate years, it can generally return to green. After the spinach begins to turn green, the soil temperature is still low. If the water quality is good, watering can be temporarily avoided. The water should be protected. If the temperature is not good, the temperature can rise and fast. The water can be poured once and the water volume should not be too large. However, salt can be properly watered with salt. In windbreaks and sandy loam, temperature rises quickly and it should be poured properly. After spinach began to thrive, the demand for fertilizer and water surged. In this period, we must keep the soil moist and non-drought. We should pay attention to top-dressing and watering, promote vegetative growth, and delay convulsions. Generally, 15 to 20 kg of urea is applied per acre, and sufficient water is poured after fertilization. After spinach turns green, the amount of water required is very large and the water is poured every 5 to 7 days. If the soil is dry, it will limit the development of the leaves, the slow growth, the aging of the leaves, and the poor quality. So always keep the ground moist during the rapid growth phase of spinach. Combined with the quick-applied fertilizer. Watering should be done in the morning and in the evening, so that it is “wet and not stained”, and it keeps “the tide is not wet”. Accelerates vegetative growth of spinach.

The weeds in the turning green stage of spinach are easy to breed, they are suitable for watering, weeding and weeding, and timely fertilization. Spinach is a vegetable that is harvested many times and should be fertilized after each harvest to promote seedling growth.

Pest control: Spinach may suffer from diseases such as downy mildew, viral disease, anthrax, aphids, leafminers, and other insect pests. The targeted pesticides should be sprayed and controlled in time according to the requirements of plant protection, which can greatly increase the utilization of effective pesticide components. Improve anti-disaster capabilities.

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