The habit of not fertilizing grapes after harvest should be changed

Fruit trees have been promoted for a long time in autumn fertilization, but the author returns to Le Ting’s hometown every year to find out: After harvesting, few farmers go to fertilize again, and ask the reasons. One is that they feel trouble, and the other is to fertilize fruit after reclamation. Has no effect, the third is the fear of fertilization after the grape will suffer freeze damage. This year, the grapes have been listed one after another. At the time of Shi Qiufei, the author specifically asked Liang Yi, an agronomist of Hebei Jiayuan Agricultural Technology Co., Ltd. He once again reminded that: After the harvest, no fertilization is scientific and this traditional habit should be changed. changed.

Liang Yu said, first of all, there is a clear scientific basis for fertilization in the autumn, because at this time the temperature is still high, especially after the application of organic fertilizer, conducive to the maturity of fertilizers, lay the foundation for the flower bud differentiation and increase the fruit setting rate in the following year, and At this time, no fertilizer is needed for new shoots to facilitate the absorption of stored nutrients by roots, and wounds wounded during fertilization will heal easily.

In terms of specific fertilization amount, it is necessary to ensure that autumn fertilization is about 50% of the fertilization amount in a year. In general, the vineyards in the upright and mature years require 2-3 organic fertilizers per acre, together with compound fertilizers (nitrogen and phosphorus In the new vineyards, we must first dig and plant the ditch. The ditch should be 60 centimeters wide and 60 centimeters deep. After that, apply 1 to 2 ripened farmhouse fertilizers per acre, mix well with the fine soil, and use it as base fertilizer. , And then fill in a layer of topsoil to lay the foundation for the spring planting seedlings, while applying about 50 kg of bio-organic compound fertilizer.