Want a high yield from overwintering spinach? Strengthening management is key

Sowing time, whether early or late, is closely related to the seedlings' ability to overwinter, the harvest time and the yield, so it should be neither too early nor too late. Spinach is best when it has 4-5 leaves before the freezing weather arrives. Overwintering spinach is sown from mid-to-late October to early November. The climate is cool at this time, which is suitable for spinach germination and seedling emergence, and generally there is no need to sow pre-germinated seeds; sow dry seeds or wet seeds. Before sowing, dress the seeds with New High-Fat Film to increase the seed germination rate.

Applying overwintering fertilizer increases the soil nutrient content and serves to use winter fertilizer in spring and to promote weak plants into strong ones. This is especially important for vegetable plots with little base fertilizer, poor soil fertility and weak seedlings. Therefore, overwintering fertilizer should be applied together with the freezing water; generally apply urea or ammonium sulfate per mu, topdressing with the irrigation water. Also spray Photosynthetic Nutrient Film Fertilizer, which can help plants absorb large amounts of light fertilizer, light energy and light, is compatible with conventional fertilizers, and supplies nutrients to plants for growth and development to the limit. One application benefits the whole year.

When the leaf cluster is growing vigorously, apply 1 nitrogen topdressing, 10 kg of urea per mu, broadcast it on the bed surface after the dew on the leaves has disappeared near noon, dip a new broom in water and water each bed one by one; at the same time, during the spinach growing period, spray Vegetable Stem Strengthening Agent at the right time, which can enhance the ability to resist disasters, reduce the use of pesticides and chemical fertilizers, and lower residual toxicity.