How to fertilize strawberries in winter

Strawberries taste sweet and sour and are very popular. Now many growers also cultivate strawberries in winter, but the sunshine time in winter is reduced. If strawberries want to get enough nutrients to grow, they can only be fertilized. So how to fertilize strawberries in winter? Come and have a look with the editor.

1. Seedling fattening

Seedling fertilizer should be mainly organic fertilizer such as compost, farm manure and cake fertilizer, and then add appropriate amount of microbial agent to improve the fertilizer efficiency of organic fertilizer, and then apply a small amount of calcium superphosphate and potassium sulfate and other chemical fertilizers. In order to promote the flower bud differentiation of seedlings, an appropriate amount of base fertilizer should not be applied on the pseudo-planting bed, and nitrogen fertilizer can be applied once in the middle of pseudo-planting to promote the growth of seedlings. Generally, 5-10 kg of urea per mu or 150-250 kg of mature human feces.

2. Base fertilizer

After planting, after strawberries blossom and bear fruit, this period is longer and requires a large amount of fertilizer, so it is necessary to apply base fertilizer before planting, generally applying 5000 kg of farm manure per mu, and then adding 6-8 kg of microorganisms to mix them evenly. Jin to alleviate the obstacle of soil continuous cropping, but also can improve the utilization rate of farm fertilizer. If it is acidic soil, you can also apply 50 kilograms of quicklime per mu to adjust the pH.

3. Reasonable topdressing

Fertilizer should be applied once after each picking, and the specific amount of fertilizer should be determined according to the amount of fruit harvested. The more fruit is harvested, the more fertilizer is applied. On the contrary, the less fruit harvest is, the less fertilizer is applied. In the early flowering stage, 10-15 kg of compound fertilizer and 200-300 kg of mature human feces should be applied per mu, and then topdressing should be applied according to the actual situation during fruit expansion and fruit picking, and 4-5 times during the whole growth period of strawberries to meet the needs of plant growth and fruit development.

4. Foliar fertilizer

After strawberry fruit setting, plant growth and fruit expansion need a lot of nutrients, and the nutrients absorbed by the roots may not be able to keep up with the plant consumption, so foliar fertilizer needs to be sprayed in time, generally 0.2% Mel 0.3% KH 2PO 4 and 0.5% urea. In addition, in order to prevent fruit rotting caused by lack of calcium in fruit, we should pay attention to the supply of soluble calcium, apply more organic fertilizer, increase the content of organic matter in soil, and control the application of nitrogen fertilizer to avoid excessive growth of plants, which is disadvantageous to fruit expansion.

The above is the introduction of how to fertilize strawberries in winter. I hope it can help you. If you want to know more about it, please follow us.