When is the best time to fertilize grapes in autumn?

When the grapes are pruned, the fields are fertilized at the end of September to prepare for the coming year.

Germination fertilizer: about February to apply a germination fertilizer, germination fertilizer is mainly nitrogen fertilizer, can use Yanwo water-soluble fertilizer nitrogen fertilizer, using furrow application or hole application.

Pre-flower: In late April, apply a pre-flower. Pre-flowering fertilizer, mainly nitrogen fertilizer and phosphorus fertilizer, with Yanwo water-soluble fertilizer high nitrogen and high phosphorus type, need to be watered immediately after fertilization.

Strong fruit fertilizer: Yanwo high potassium water-soluble fertilizer can be used, and furrow application or hole application is still used.

The growth period of young fruits is the peak fertilizer demand of grapes in a year, and fertilization at this time not only promotes the growth of young fruits, but also has a good effect on the growth of branches and leaves of the year.

Coloring fertilizer: also known as ripening fertilizer.

Post-harvest fertilizer: After the fruit is harvested, due to the large nutrient consumption of the tree, fertilization is required to ease the tree and delay defoliation.

In recent years, with the improvement of grape fertilizer and water management technology, irrigation fertilization has been gradually adopted to replace traditional fertilization methods in production.

Top dressing begins in mid to late April, and fertilization is carried out using drip irrigation. Nitrogen, phosphorus and potassium can be applied per mu.

Water-soluble compound fertilizer with content of 15:15:15.

2kg, which can be applied at the same time with Yanwo water-soluble fertilizer and water fertilizer, once a week, during which the soil is kept moist.

At the same time, during the grape growing season, according to the grape's nutrient requirements, topdressing can be carried out outside the roots. If the grapes are sprayed with foliar fertilizer after fruit set, they can continue to supplement nutrients, and Yanwo potassium dihydrogen phosphate can be used.

to replenish the tree's need for phosphorus and potassium. 7-10 days after fruit harvest, it helps the plant to regulate growth, promote nutrient absorption, and restore the tree's vigor as soon as possible.

Greenhouse grapes are best fertilized in autumn in September.

At this time, the temperature is still high, after the application of organic fertilizer, it is conducive to the decomposition and decomposition of soil microorganisms, and it is absorbed and utilized by the root system in a relatively short time, which can improve the nutrient level of the tree and lay the foundation for the next year's harvest.

It is recommended to apply sheep pen manure, rabbit manure, circle manure, manure, manure, biogas residue and other farm fertilizers (4-5 square meters per mu), with the application of an appropriate amount of potassium sulfate compound fertilizer (about 150 kg per mu), and ditch application between rows.

All organic fertilizers can be used as base fertilizer, such as animal manure, organic straw fertilizer, farm fertilizer, etc., but organic fertilizer must be harmlessly treated, such as fermentation, high temperature sterilization, so as to eliminate various pathogenic bacteria, viruses, parasite eggs and pest infections, etc., after harmless treatment of farm fertilizer can be used as base fertilizer.

Fertilize the grapes in autumn. to organic fertilizer and.

Nitrogen, phosphorus and potassium complete fertilizer is the main fertilizer, supplemented with phosphorus and potassium fertilizer. 400 500 kg of rotted human and livestock manure, 40 50 kg of nitrogen, phosphorus and potassium (15 15 15) potassium sulfate or nitrate sulfur or pure sulfur-based compound fertilizer, 80 100 kg of superphosphate or calcium-magnesium phosphate fertilizer, 25 30 kg of potassium sulfate per mu, and a shallow annular ditch with a depth and width of 25 30 cm was dug at a distance of 40 50 cm from the grape plant.

The best time to fertilize the grapes in autumn is from late August to late October, after harvesting.

It is reported that the best time for autumn fertilization of grapes is late August to late October after picking, and early fertilization is better than late fertilization, and the latest can not be later than the end of October.

The growth habits of grapes

Water is the carrier of nutrients, which can be transported to various parts after being dissolved in water.

In early spring, when the average temperature reaches about 10 and the temperature at 30 cm of soil reaches 7-10, hybrids from Eurasia and Europe and the United States will begin to sprout, and when the temperature reaches 25-30, they will grow rapidly.

Grapes need plenty of light, and when there is no light, the leaves of the plant will become thinner, the leaf color will be lighter, the ears will shrink, the flower and fruit drop will increase, and the winter buds will be poorly differentiated, resulting in a decrease in yield and quality.

Types of grapes

There are more than 800 varieties of grapes in China, and the ones we see every day are the following: Kyoho grapes, purple and black, with round grains; Early rose grapes, the grains are oval, and the taste is sweet; Summer black grapes, dark in color, dense and dense in grain, sweet and sour taste.

Characteristics of grapes

The grape is one of the oldest fruit trees in the world, and its plant fossils have been found in Tertiary strata. Grapes are a well-known fruit and are both an important berry tree and a beautiful green tree.

Zhongwei TC (plant growth regulator) recommendations:

1) Germination fertilizer. The time is carried out around the time of excavation in early spring, and it is dominated by nitrogen and potassium. 50 kg of urea per mu of mature garden, and 100 kg of potassium and magnesium fertilizer if potassium and magnesium fertilizer were not applied before winter.

2) Urging fertilizer. Mainly for individual weak tree orchards. If most of the branches are more than two feet in late April, 25 kg of urea per mu, in addition, boron fertilizer is sprayed during the flowering period to improve the development of flower spikes.

3) Fruit fertilizer marking. From late May to early June, when the grape grains grow to the size of soybean grains, in order to promote the development of fruits, 25 kg of urea, 25 kg of 50% potassium sulfate or 50 kg of high nitrogen and high potassium compound fertilizer can be applied per mu.

4) Ripening fertilizer. One month before maturity, 25 kg of potassium fertilizer with 50% content was applied per mu.

Hello dear, it is best to know the autumn bottom fertilizer of greenhouse grapes in September. At this time, the temperature is still high, after the application of organic fertilizer, it is conducive to the decomposition and decomposition of soil microorganisms, and it is absorbed and utilized by the root decay and rent elimination system in a relatively short period of time, which can improve the nutrient level of tree storage and lay the foundation for the next year's harvest. The importance of basal fertilizer, increasing the accumulation of nutrients in the tree, is conducive to the formation of the leaf curtain of grapes in the second year, the differentiation and enrichment of flower buds, and the improvement and improvement of the concentration of cell-type liquid to improve the cold resistance of grape plants.

Some of the tiny roots will be cut off when the basal fertilizer is applied, but at the peak of root growth, the injured roots will heal faster and promote new roots.

In March, you can clear the garden, point the buds, water, and pay attention to supplementing iron and magnesium, boron and zinc and other trace elements.

Pay attention to the prevention and treatment of anthrax.

With powdery mildew, fertilization, can flush calcium ammonium nitrate.

The amount of one mu is 40 catties. If you don't use base fertilizer in autumn, you can use 10 kg of balanced water-soluble fertilizer.

It is usually applied after the grapes are harvested, mainly with organic fertilizer from the farm, and a portion of phosphate fertilizer is applied. The greatest significance of applying basal fertilizer is to the vines.

During the falcon period, it is necessary to supplement the excessive nutrients consumed in the early stage, so that the tree body can recover the tree strength, and at the same time, this time is also the stage of rapid root growth, and fertilization is conducive to the growth of the root system, laying a good foundation for next year's bumper yield. When applying basal fertilizer, it is generally 40-60 cm away from the horizontal distance of the vine taproot to dig a pit or ditch, the depth is 40 cm, and each plant is applied with 30-50 kg of organic fertilizer, superphosphate.

1-2 kg. Grapes are perennial plants and need to be fertilized in stages according to the nutrient requirements of each growth stage in a fruiting cycle in order to increase yield and ensure quality. In addition to the top dressing in the summer, the application of autumn fertilizer is the key to ensuring a good harvest in the next fruiting season.

<> pre-flowering fertilization: the first topdressing in early spring when the grape bud begins to expand, the amount of fertilization accounts for 10%-15% of the total amount of fertilizer applied throughout the year, mainly with rotted farmhouse fertilizer plus an appropriate amount of ammonium nitrate or urea.

Pre-budding topdressing can promote the development of branches, leaves and flower spikes, which is conducive to increasing the leaf area. In spring, before the germination of fruit trees, a basal fertilizer should be applied, mainly with well-rotted organic fertilizer. It can make the root system of the fruit tree absorb nutrients, promote the germination of buds, and the growth of new and fruit spikes is robust, providing favorable conditions for flowering and fruit setting.

The fruit setting rate can be significantly improved. Supplement boron, magnesium, zinc and calcium fertilizers once or twice in the early flowering period in spring to increase fruit setting rate and reduce the occurrence of large and small fruits.

Foliar topdressing is carried out before germination, before flowering, young fruit growth period, and early fruit coloring period, because foliar topdressing is easier to operate, so the application period is more flexible, and can be applied multiple times in the same period or different periods, mainly through foliar supplementation of calcium, magnesium, iron, zinc, boron and other medium and trace nutrients.

It is best to start fertilizing before the frost falls, usually around November, when fertilization allows the vines to grow better in winter.

This is the time when the grapes are grafted from mid-May, and fertilization is guaranteed at this time.

It starts in March, when fertilization allows the grapes to grow better.