Grape fertilization management, fertilization season

Article Catalog

1. Base fertilizer

2. Top dressing

---

When fertilizing it, it can be divided into base fertilizer and top dressing. Base fertilizer is base fertilizer, which is applied after the fruits are harvested in autumn. The amount of fertilizer at this time is relatively large, accounting for more than 70% of the whole year. The fertilizer is mainly organic manure, about 800-1000 kilograms. Top dressing is fertilizer applied according to different growth stages. It can be mainly divided into germination fertilizer before early spring, pre-flowering fertilizer before flowering period, fruit strengthening fertilizer when young fruits and fruit coloring fertilizer. The fertilizers applied at each stage are also different.

1. Base fertilizer

1. Base fertilizer

Basic fertilizer is also called base fertilizer, and the total amount of fertilizer applied accounts for more than 70% of the year. The main thing is to apply organic fertilizer, use 800-1000 kilograms of decomposed manure, and do it after the fruit is harvested, so the effect is better. Applying nutrients at this time can replenish the nutrients consumed by fruiting, help restore the tree's vigor, and enhance cold resistance, which is beneficial to winter and next year's growth and flowering. The specific location and depth of fertilization will depend on the size of the plant. If the plant is young, it should be closer to the root system. If it is older, it should be farther away to avoid damaging the roots. Dig a hole of suitable size, put fertilizer in it, and cover it with soil.

2. Top dressing

1. Germination fertilizer: Germination fertilizer is applied in early spring, probably after February every year, mainly nitrogen fertilizer. Apply 20 kilograms of urea and 10 kilograms of superphosphate per acre, either by ditch application or hole application.

2. Pre-flowering fertilizer: Pre-flowering fertilizer is applied every year It is carried out in late April, mainly applying phosphate fertilizer and nitrogen fertilizer. Use 15 kilograms of urea and 10 kilograms of superphosphate per acre. Water the fertilizer as soon as possible to dilute it.

3. Fruit-strengthening fertilizer: It is carried out during the growth period of young fruits. This is the peak period of fertilizer demand, so more fertilizer should be applied. Use 30 kilograms of urea and 40 kilograms of potassium sulfate per acre. The method can be ditch application or hole application.

4. Colored fertilizer: Colored fertilizer is also called ripening fertilizer. The amount of fertilizer at this time does not need to be too much. Apply 5-10 kg of potassium fertilizer per acre and 2-3 kg of magnesium sulfate.

2. Top dressing

- END -