When do home-grown vines usually be fertilized? What kind of fertilizer should I apply? How do you need to manage?

Grape is a very common fruit in the supermarket, because of different varieties, the fruit and taste are also different. Today, the editor told you about when the vines planted at home are usually fertilized. What kind of fertilizer should I apply? How do you need to manage?

First, when does the vine usually apply fertilizer? What kind of fertilizer should I apply?

(1) sprout fertilizer

Usage time: clear the fertilizer ditch within 5-10 days before the Beginning of Spring, and fertilize within 5-10 days after the Beginning of Spring. Usage: strive for the combined application of organic fertilizer and inorganic fertilizer, and apply it in a fertilizer ditch 10-40cm deep outside the main pole 30-15cm. Clear the ditch and cover the soil after fertilization. Dosage per mu: 1000-3000 kg of manure, 40 kg of urea, 25-50 kg of calcium, 20 kg of potassium sulfate, 3 kg of zinc sulfate, 3 kg of boron fertilizer and 12.5kg of ferrous sulfate.

(2) fattening with weak branches

After germination, the fields with weak or uneven branches need to be fattened and strong at the budding stage. The dosage per mu is: urea 20 kg, calcium 25 kg, potassium sulfate 15 kg.

(3) Young fruit expansion fertilizer (strong fruit fertilizer)

In April, we should do a good job in the application of strong fruit fertilizer for the first time, 30 kg of urea per mu, 25 kg of calcium and 20 kg of potassium sulfate. After that, apply strong fruit fertilizer every 20 days or so. Generally, it should be applied 2-3 times a year, and the dosage is the same as that of the first time.

(4) increasing sugar and coloring fertilizer

After a small amount of fruit coloring, apply sugar coloring fertilizer, 30 kg of urea, 25 kg of calcium and 30-35 kg of potassium sulfate per mu.

(5) applying base fertilizer in autumn

Usage time: newly planted grapes and early-maturing varieties were applied after shallow hoe and root-cutting in autumn, and mid-late ripening varieties were applied in time at the end of fruit harvest. Usage: organic fertilizer combined with inorganic chemical fertilizer was applied in a ditch outside 30-40cm of the main stem, and the ditch was cleared to cover the soil. Mu dosage: 3000-5000 kg of manure, 25-50 kg of calcium, 30-35 kg of potassium sulfate, 3 kg of zinc sulfate and 3 kg of boron fertilizer.

(6) foliar fertilizer

Foliar fertilizer was sprayed before flowering and in the young fruit stage. Usage: 0.1% urea + 0.2% borax (or replace 0.2% zinc sulfate) + 0.2% potassium dihydrogen phosphate.

Second, how to manage the vine?

⒈ to improve tree nutrition from sprouting to early flowering, nitrogen and phosphorus-based available fertilizers should be reasonably applied, and then irrigated in time.

⒉ timely coring in accordance with the required standards to adjust nutrition in time to ensure the nutritional needs of flowering.

⒊ boron spray 0.3% borax solution half a month before flowering, which has a significant effect on improving fruit setting rate.

⒋ spray for a long time (B9) about 7 days before flowering, 0.3% Mel 0.5% solution was sprayed to control shoot growth.

⒌ thinning accessory spike and shrunk ear tip after inflorescence selection, for large-grain varieties with tight fruit grains, it is necessary to cut off the upper accessory spikes and 2-3 branches in time, and to sparse and avoid shrinking the over-dense spikelets or fruit grains and over-long spike tips, so as to make the ear compact and the grain size neat and beautiful.

⒍ girdling: different girdling time is determined according to the purpose of girdling. For example, in order to improve the fruit setting rate, it should be carried out at the beginning of flowering; for example, in order to increase the fruit grain, it should be carried out in the berry expansion period; for example, in order to make the fruit mature earlier and increase the sugar content, it should be carried out in the fruit coloring period. For the part of girdling, it is appropriate to choose the stout fruit branch at the top of the fruit branch at the front 3 cm of the fruit draft or the previous Internode. The tool can be carried out with a double-edged ring peeling knife or a budding knife. The peeling mouth is 2-3 mm wide and reaches as deep as xylem. After the peeling is removed, wrap it tightly with clean plastic strips immediately. In order to prevent wind break, it is safer to tie up some wood skills or bamboo splits.