Crisp pear is a favorite fruit in China. It contains sugar, minerals, organic acids and vitamins. It is very rich in nutrition. It is a rare good fruit and is loved by the majority of consumers. Today, let's learn the cultivation method of crisp pear~
Cultivation method of Suli pear cultivation method: Zaosu pear in the annual average temperature of 8.5 ℃～ 14.0 ℃, the average minimum temperature in summer (June to August) is 13.1 ℃～ 23.0 ℃, the annual precipitation is 450-900 mm, and the soil is brown soil, yellow loam soil, black loessial soil and cinnamon soil. Among them, the Loess Plateau is characterized by large temperature difference between day and night, high altitude, strong ultraviolet radiation, high sugar content and good quality. In the above-mentioned environment, we should choose sandy loam soil with deep soil layer, fertile soil and loose soil as far as possible. Zaosu pear young trees grow vigorously with high germination rate and weak branching ability, which is suitable for close planting cultivation and population yield increase. Due to the large crown and long life span of pear, it is suitable to plant 56 pear trees per 6670 mu with a spacing of 3mx4m.
Zaosu pear is a kind of Arbuscular flower with low self flower setting rate and irregular fruit shape. Zaosu pear is a waterlogging tolerant tree species, which needs 480-600t per 6670 mu per year. Where there are irrigation conditions, we should focus on the irrigation before germination, after flowering, fruit expansion and before freezing; in areas without irrigation conditions, we should focus on water conservation to improve the utilization rate of natural precipitation. In addition to sand, weeds and plastic film mulching, water cellars or dams can be built beside roads and ditches to collect water, so as to ensure the balanced water supply of Zaosu pear orchard.
Zaosu pear has the advantages of short growth time, high yield and relatively concentrated nutrient requirements. Fertilization should focus on ensuring the application of fertilizer before germination, after germination, fruit swelling period and after fruit picking, to ensure the nutrition needed for fruit setting, rapid growth of new shoots and fruit expansion, and supplement the nutrition consumed by trees due to fruit bearing. When applying fertilizer, we should pay attention to the combination of organic and inorganic, quick acting and slow effect, so as to achieve formula fertilization and balance nutrient supply. According to the standard of 1500-2000 K high-quality organic fertilizer, 1.5 K pure nitrogen, 0.75 K pure phosphorus and 1.5 K pure potassium was applied for every 1000 K pear production. 70% of the fertilizer should be applied in the form of base fertilizer, and the remaining 30% should be used as top dressing. Organic fertilizer and available phosphorus and potassium fertilizer should be mainly applied as base fertilizer, while the quick acting nitrogen fertilizer should be mainly applied as topdressing. In young orchard, it was mainly applied in the form of furrow, and it could be applied in the whole orchard after the full fruit stage.
Zaosu pear is a large fruit with an average single fruit weight of 200-250 g. due to the different branch types and different bearing parts, the irregular fruit size exists in the production, which affects the commercial quality. Zaosu pear has strong germination ability, low branching rate and easy to form short fruit branches. The flower buds of Zaosu pear are mainly located on the top of medium and short branches. The top flower bud bud is full, flowering is more, fruit setting rate is high, the fruit quality is good and the fruit size is consistent. In the same inflorescence, the edge flower opens first. Under the same conditions, the flower quality is good, the fruit setting rate is high and the fruit is bigger. Therefore, attention should be paid to flower and fruit thinning in production. The top flower buds of middle and short branches should be kept during flower thinning, and side flowers should be kept in one inflorescence, and the appropriate spacing between fruits should be 20-25 cm. On the premise that the fruit bearing of medium and short fruit branches can ensure the yield, the axillary flower buds should be kept as little as possible.
The sepals of Zaosu pear are persistent. It should be noticed that the calyx should be removed manually in the production. Generally, the calyx should be removed 10 days after the flower falls, and the flesh will be damaged later. Bagging can keep fruit surface bright and clean, reduce fruit surface pollution, and is conducive to high-grade fruit production and improve the marketability of Zaosu pear.
The nutritional value of crisp pear: 1. Pear contains rich B vitamins, which can protect the heart, reduce fatigue, enhance myocardial activity and reduce blood pressure;
2. The sugar and tannin of pear can dispel phlegm and cough, and can maintain the throat;
3. Pear has more sugars and vitamins, which can be easily absorbed by the human body, enhance appetite and protect the liver;
4. Pear is cool and can clear away heat and calm. Regular eating can make blood pressure return to normal and improve symptoms such as dizziness and dizziness;
5. Eating pear can prevent atherosclerosis, inhibit the formation of carcinogen nitrosamine, so as to prevent cancer and cancer;
6. The content of pectin in pear is very high, which is helpful for digestion and defecation.