High-yield planting technology of spinach

Spinach is one of the most common and popular vegetables in our daily life, and it is also widely grown by farmers in many rural areas. Because spinach has strong cold resistance and is not demanding on the growing environment, it can be divided into spring spinach, summer spinach, autumn spinach and overwintering spinach according to the planting time. Let’s take a brief look at the high-yield spinach cultivation techniques .

1. Choose the variety

Spinach can be grown in all seasons and comes in many varieties. To ensure yield and quality, suitable varieties need to be selected in different seasons. For example, when planting over the winter, you should choose varieties that are cold-resistant, late bolting, and high-yield; when planting in summer, you should choose varieties that are heat-resistant, disease-resistant, and fast-growing.

2. Land preparation and fertilization

Spinach needs fertile soil with convenient drainage and irrigation to grow. Land with good water and fertilizer retention capabilities is more conducive to spinach growth, which is the basis for achieving high yields. After harvesting vegetables from the previous season, remove dead leaves and rotten roots to reduce the occurrence of diseases. Apply farmyard manure to the soil, then plow and harrow it to make flat or raised beds.

3. Planting seeds

Spinach can be sown by broadcasting or row sowing. Broadcasting is to evenly spread seeds on the surface of the prepared land, rake it lightly, and cover it with a thin layer of nutrient soil. Row sowing is to make furrows in the soil, sow seeds along the furrows, and then cover with soil. It is usually recommended to use row sowing, which saves seeds and facilitates management. It is recommended to water before sowing to maintain appropriate soil moisture, which is conducive to seed germination.

When sowing spinach, you can use dried seeds to sow directly. However, in the hot summer and autumn seasons, the seeds need to be treated to increase the germination rate. Before sowing, refrigerate the seeds for one day, then germinate them at room temperature before sowing. After sowing in summer, you can cover the seeds with straw to provide shade and retain moisture, and then uncover them after the seedlings grow out.

4. Watering and fertilizing

When the spinach grows two or three leaves, it is necessary to carry out multiple thinning, remove weak and diseased seedlings, and finally keep the seedlings 5-10 cm apart. If planting large-leaf spinach, you can plant it densely. Appropriate density will help increase yield; round-leaf spinach needs to maintain a larger seedling distance to obtain thick leaves, good taste and high quality.

Spinach seedlings have low demands for water and fertilizer. As long as the soil is not obviously lacking in fertilizer or is dry, no watering or topdressing is required. When spinach grows four or five leaves, the growth rate accelerates and the frequency of watering and fertilizing needs to be increased to promote spinach growth. The fertilizer is mainly quick-acting nitrogen fertilizer, and 30-40 kilograms of ammonium sulfate can be used per mu, which helps the growth of spinach stems and leaves.

When planting over the winter, spinach needs to be watered before winter to increase the soil temperature and prevent frost damage. No management is required during the winter, and watering and fertilizing are carried out after the plants turn green in spring. Since spinach is cold-resistant but not heat-resistant, it needs to be covered with a shade net when planted in summer and autumn to prevent high temperatures from affecting the growth of seedlings.

The above is an introduction to the key points of high-yield spinach cultivation technology. Spinach cultivation is actually not complicated. As long as you follow the steps and do a good job of field management, it is relatively easy to achieve high yields.