How to apply winter fertilizer to grapes?

Should the grapes be fertilized with winter fertilizer? Many friends do not attach importance to this, or even do not think so, science to promote agriculture that winter fertilizer is still very necessary. From the fall of the leaves of the grape to the germination of the next year, it is basically the stage of dormancy and energy storage of grapes. You may have seen peonies, which are planted too late or do not even blossom in the field. This phenomenon is also very obvious in grapes. Typically, there are few flowers and fruits, so winter fertilizer supplementation can effectively improve the quality and yield of grapes in the coming year.

Topdressing time

Fertilizing can be carried out before the beginning of winter, and topdressing should be carried out in November, not too early or too late. If it is too early, the fertility may be consumed in advance, and the grapes are usually more fertile in summer and autumn and more fertile just when the leaves are falling, so there is no need for early topdressing. If it is too late, the grapes will not be able to accumulate enough nutrients. And if faced with a lack of phosphate and potash fertilizer, the decline in resistance may not be able to survive the severe winter.

What kind of fertilizer should be applied

Winter grapes are dormant and have little demand for nutrients, but few do not mean they are not needed. After all, plants still need to maintain their life activities. Due to no longer growing leaves, the demand for nitrogen fertilizer is very small, too much nitrogen fertilizer will lead to prosperity in the coming year, but it is still necessary for phosphorus and potassium fertilizer, which can improve the disease resistance of grapes.

Generally speaking, farm manure is the best, of course, it is rotten farm manure. It contains three large amounts of nitrogen, phosphorus and potassium, as well as many mineral elements, which can meet the growth needs of the plant. Of course, you can also choose to consider the organic fertilizer sold in the market. But relatively speaking, the cost is a little high.

If you choose chemical fertilizer, then it is recommended to consider phosphate and potassium fertilizer, such as potassium dihydrogen phosphate or calcium superphosphate + potassium chloride (potassium sulfate), while the lowest one should be applied calcium fertilizer, the general demand for calcium is still relatively large, it is also very beneficial to chase some calcium superphosphate at this time.

How to apply fertilizer?

Deep ploughing is the best way to fertilize organic manure or farm manure. If fertilized on the surface, nutrients are difficult to be absorbed by plants, and organic manure or farm manure can further mature if they are fertilized by deep ploughing. Accelerate the release of nutrients and improve utilization efficiency. The roots of grapes are relatively deep, so it is recommended that deeper roots should be applied when fertilizing.