Apricot root seedling cultivation techniques
In recent years, many fruit growers, when breeding peaches and apricot root seedlings, often suffer from inadequate technical measures, resulting in low seedling emergence rate and severely affecting the economic benefits of seedlings.
. From 2000 to 2002, we planted seedlings of peach and apricot rootstock for three consecutive years at our school's horticultural base and adopted a series of measures to make the peaches,
The apricot root seedlings emerged neatly and they all reached the grafting requirements by mid-June.
First, the seed sand. In mid-December each year, fresh, plump, and apricot seed will be purchased for sand treatment. Put the seeds in a bucket first
Stir and remove the poor quality maggots that float on the surface of the soil, then soak in clean water for 1 to 2 days. Then take 5 times the seed volume of sieved sand, add 800 times the 40
The % carbendazim solution is wet and the humidity is suitable for holding in groups without drip. Remove the seeds and mix them with wet sand and place them on the leeward, cool, dry and clean place.
Wet moisturizer on the cover. During sand trapping, frequent inspections should be taken to prevent the sand from drying out or the mildew and freezing of the seeds. Sand time is about 90 days, up to 3
In the middle of the month, when about 1/3 of the seeds are germinating "white", they can be sown.
Second, do the earthwork. Peach and apricot seedlings are afraid of scabs and are afraid of salt and alkali. Nursery should choose topography, drainage, convenient soil, loose, breathable
The sandy lands with good sex, no peach and apricot seedlings are the best. After soil thawing in early spring, 1/15 hectares (1 mu) of cooked chicken manure 2000 kg, superphosphate
30 kg, 10 kg of ferrous sulfate, ploughing 30 cm deep, after the flat smashing fine for rake, rake width 1 meter, rake length 10 meters is appropriate.
Third, break the nuclear germination, sowing in batches. In the middle and mid-March, after processing the sand, the seed core that has broken the nucleus and radicles will be knocked out and the seed kernels will be removed.
Germination in germination box, so that the temperature is maintained at 20 ~ 25 °C, 3 ~ 4 days after the growth of radicles, germination to the radicle is not more than 0.5 cm long is appropriate. Not exactly germinating
At the same time, the germinated seeds should be picked up and sown, and the ungerminated seeds continue to germinate and then sown after germination.
Fourth, fine sowing. At the time of sowing, open 3 seeding trenches each 4 to 5 cm deep, cut off 25 cm, and set a distance of 50 cm between the sulcus.
墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒 墒In order to prevent underground tigers, earthworms and other underground pests, every 1/15
The 2.5kg sautéed bean cake, wheat bran and 40% methyl isothiophovine emulsifiable concentrate are mixed together into 20ml of bait and sprinkled in the sowing ditch. The cover soil is 4 to 5cm thick.
After the cover is covered with a one-meter-wide plastic film to increase the temperature and moisturize the seedlings.
Fifth, seedling management. Seedlings were gradually uncovered 7 to 10 days after sowing, and the seedlings were broken by mulching after mulching, and immediately sowed along the seeding line on the membrane.
All over the water. In mid-April, when the seedling height is about 20 cm, the plastic film is removed, and combined with watering of 1/15 hectares, topdressing 10 kg of urea. Seedlings enter strong growth in May
In combination with watering, 1/15 hectares of topdressing urea is applied at 20 kg, and foliage is applied every 15 days with 0.3% urea and 0.2% potassium dihydrogen phosphate or photosynthetic fertilizer.
top dressing. When the locusts are harmful, they are combined with 1000 times of foliar sprays for prevention and treatment. When the seedling grows to about 50 cm, pick up the heart and wipe off the seedling.
The base of the wood base is less than 15 cm to promote the thickening of the seedlings and the smoothness of the grafting site. By mid-June, the rootstocks all reach a height of 70-80 cm and the base stems
Coarse than 0.6 cm, then you can use it as a rootstock to cultivate peach and apricot grafted seedlings.
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