Yulu fragrant pear is a high-quality, storable, medium-mature, and red-skin-flavored pear new variety that uses the “Korla fragrant pear†as a female parent and “Snow pear†as a parent. In 2007, she won the Beijing Olympic Games recommended fruit selection. First prize.
This variety is a large fruit with an average fruit weight of 250 grams and the heaviest weight of 550 grams. The fruit has an oval shape with a yellow-green peel. The fruit surface is light and waxy. The peel is thin and the fruit is small, the edible rate is 90%, and the meat is delicate. , sweet and juicy, is the best integrated pear cultivar in China. It is suitable for planting areas including North China and Northwest Bai pear planting areas, with annual average temperatures above 8°C and minimum temperatures above -25°C.
The main cultivation techniques of Yulu Pear:
1. Choose seedlings. Should go to the formal nursery units to purchase wild pears as the rootstock grafted Yulu fragrant pear seedlings, do not buy the joint stock.
2. Build the garden. Choose loam or sandy loam soil, avoid the depression, the soil pH value of 6-8, salt content of less than 0.2% is appropriate, the line is generally north-south direction, Yulu fragrant pear hi light, should ensure that the light. The species is large in the crown, with a spacing of 3-5 meters. Since the variety is self-cultivation, the pollination tree needs to be configured. The ratio of Yulu fragrant pear and pollinating tree is 6-8:1. The pollination varieties include Huangguan, Hongxiang crisp, Snowflake pear and so on.
3. Colonization. 0.8 m square pit was planted before planting. The topsoil and the soil and soil were piled separately. The bottom was placed with 20 cm thick straw, and the topsoil was backfilled so that it was 4-5 cm above the ground, and then the irrigation water sank to the ground level. The spring planting period is from late March to mid-April. A pit of 30-40 cm deep is to be dug in the pit, the pear seedlings will be placed in the pit, the root system will be stretched, and the soil will be gently raised and shaken while filling the ground. Centimeter is appropriate. Immediately after planting, water the plant, pour the second water after one week, cover the mulch, and dry it at a height of 80 cm.
4. Fertilizer management. The saplings of this species are growing vigorously and the buds are easy to appear in the early fruit period. The tree vigor should be controlled in time with PBO or Chlormequat. Fertilization is mainly organic fertilizer and supplemented by chemical fertilizers. Phosphorus and potassium fertilizers are re-applied at the early fruit stage. The amount of nitrogen fertilizer is controlled, the amount of irrigation water is controlled, and the production of frozen shoots is reduced to increase the fruit setting rate.
5. Prune trim. Appropriate to use the free spindle shape, multi-rejection, training uniaxial extension of the main branch, put forward retraction, timely picking heart or tip.
6. Flower and fruit management. Sparse fruit thinning, 10,000-1.5 million acres of preserved fruit, yield 3000-4000 kg; bagging the fruit after the bag is manually removed after bagging; the coloring period removes the leaf clinging to the fruit surface.
7. Pest control. The use of fungicides to control rot, scab, melasma, etc., with the acaricide to control the red spider, spray 80% when sprayed Qijiasu control pear hibiscus, rational fertilization, enhance tree vigor, found that the disease was timely curettage.
8. Picking. The period from late August to early September is mature and should be picked in time.
9. Antifreeze. The saplings are painted white in winter.
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