Postpartum care of grapes

Â Â Â Since the end of 2014, the El NiÃ±o phenomenon has been going on so far, and Yu Wei is still working hard to make the weather in China â€œpolarizedâ€, and the south and north droughts have had a great impact on agricultural development. Some days ago, heavy rains continued in the south, causing large-scale vineyards to be exposed to varying degrees of water, and some even flooded the top of the roof. Seriously affect the benefits and quality of the grapes.

Â Â Â Â After nearly a month of busy work, the harvesting of most of the early-maturing vineyards is nearing completion, and post-harvest management is very important.

Â Â Â Â After harvesting, the tree is generally declining, and management should be strengthened in autumn and winter to benefit more results next year, thereby improving the quality and efficiency of the grapes, especially post-harvest nutrition. After harvesting the grapes, the nutrients produced by the leaves have three destinations: one is to continue to grow the sub-slight, the leaves; the second is to promote the differentiation of winter buds and promote reproductive growth; the third is the return of nutrients (return to the tree and roots for storage), at this time Slight growth and winter bud differentiation will compete for nutrients, the deputy is more prosperous, the winter buds are not full enough, so it is very important to control a little fertilizer at this time. The specific management is divided into the following points:

First, after harvesting, restore the tree

Â Â Â Â After harvesting the grapes, the application of the moon fertilizer is beneficial to the recovery of the tree and increase the nutrient reserve of the tree. After harvesting: acre of high-quality water soluble fertilizer (20-20-20) 1-2kg + seaweed root solution 1kg + compound fertilizer 10-15 kg.

Second, pest control, keep the leaves

Â Â Â Â After harvesting, it mainly controls downy mildew and anthrax.

Third, control the length of the control, promote the old

Â Â Â Â After harvesting, enter the second peak period of grapevine growth. At this time, it is necessary to control it slightly to prevent excessive consumption of tree nutrients. For the branches of the priests, take light heart picking, remove the side shoots, reduce the consumption of nutrients, and promote the maturity of the branches. At the same time, the branches should be properly trimmed, with thick branches and more branches, and weak branches. Overly branches, thin branches, and pests should be removed early. The pruning after harvesting should not be too heavy, which not only affects the maturity of the branches in the same year, but also easily induces the winter buds, affecting the growth and results of the plants in the coming year. Generally, the leaves are not picked and the tips are removed after harvesting, and the robust branches and leaves are retained as much as possible.

Â Â Â (Extracting the heart, removing the secondary shoots, spraying high potassium leaf fertilizer such as potassium dihydrogen phosphate to promote the ripening of the branches, which is conducive to flower bud differentiation in the coming year)

Fourth, clean up the orchard, autumn application base fertilizer

Â Â Â Â Clean up the fallen leaves in the garden and eliminate the source of overwintering bacteria. In the first ten days of October to the beginning of October, the base fertilizer can be combined with autumn tillage. At this time, the climate gradually becomes cool, but the soil temperature drops slowly. The grape roots also enter the second rooting period of the year. The fertilizer can be absorbed by the grapes faster, which can promote nutrient accumulation and root development, laying a solid foundation for grape production in the coming year. The base fertilizer is mainly composed of fully decomposed herbivorous poultry manure, or cake fertilizer, combined with bacterial fertilizer and large and medium trace element fertilizer. The fertilization accounts for more than 50% of the annual fertilization amount (Reference: 3,000 kg of orchard per mu, organic fertilizer 2000) Kg + bio-fertilizer 100 kg + 60 kg of superphosphate + 40 kg of elemental compound fertilizer + 15 kg of medium and trace element fertilizer). The method of applying the base fertilizer is mostly applied by ditch. Drilling along the planting line, open a groove 30 cm wide and 60 cm deep at 60-70 cm from the trunk. If the conditions are insufficient, at least the ditch is 45-50 cm deep.