Is the climate in Xingren County of Guizhou suitable for growing pitaya?

Pitaya can be planted in the climate of Xingren County, Guizhou Province. Xingren belongs to the mild and humid monsoon climate zone with low latitude plateau in the middle subtropical zone, and it can be planted outdoors in winter except the extreme climate in winter.

Analysis shows that:

Pitaya is a tropical and subtropical fruit, which likes light and shade, heat and drought, and fat and barren.

Pitaya is resistant to low temperature of ℃ and high temperature of 4℃, and the optimum temperature for its growth is 25-35℃.

Xingren belongs to a low latitude plateau subtropical mild humid monsoon climate zone, with an average annual temperature of 15.2℃.

July is the hottest with an average temperature of 22.1℃, and January is the coldest with an average temperature of 6.1℃, an extreme maximum temperature of 34.6℃ and a minimum temperature of -7.8℃.

so pitaya can be planted in this area.

Growth habit:

Pitaya is a tropical and subtropical fruit, which likes light and shade, heat and drought, and fat and barren.

It grows rapidly in a warm and humid environment with sufficient light. When cultivated in the open field in spring and summer, it should be watered more to keep its roots in a vigorous growth state, and it should be drained in time in rainy and rainy weather to avoid being infected with germs and causing stem meat rot.

Its stems can grow on rocks, and the plants are extremely resistant to wind. As long as the supports are firm, they can resist typhoons.

Pitaya is resistant to low temperature of ℃ and high temperature of 4℃, and the optimum temperature for its growth is 25-35℃.

pitaya can adapt to a variety of soils, but the neutral soil and weak acid soil which contain a lot of humus and keep water and fertilizer are the best.

key points of cultivation: spring is the most suitable time for cutting, and the cuttings are selected from well-grown stems and cut into small pieces with a length of 375px. After the wound is dried, it is inserted into the sand bed or directly cut under the support frame and the side of the cement column.

there is no need to water after cutting, so as to keep the soil dry.

start watering after p>1 days. It can take root in about 15-3 days, and transplant the seedbed when the root grows to 3-1px.

pitaya begins to blossom and bear fruit 12-14 months after planting, and can blossom 12-15 times a year, with April-November as the fruit-bearing period.

The fruit ripens 3-4 days after withering, and the weight of a single fruit is 5-1g. In the second year after planting, more than 2 fruits are produced per column, and in the third year, when the fruit is in full bloom, the yield can reach 25kg/667m2.

seedling management:

the seedbed should be selected with sunny ventilation, fertile soil and convenient irrigation and drainage, and the whole bed should be carefully cultivated with furrows of 225px, and 15-2, kg of decomposed chicken manure or cow dung should be applied to 667 square meters, and 1 kg of chaff ash should be mixed and fully stirred.

during soil preparation, apply it to the topsoil 1-5px below the border, and then apply 1-15kg of calcium magnesium phosphate fertilizer, fully stir with a hoe and apply it to the topsoil 4-125px deep.

Then plant the seedlings in the seedbed according to the plant spacing of 75px, water them, spray carbendazim 5 times once, and apply 5-7kg compound fertilizer every 1-15 days, and then leave the nursery after the first stalk segment with full flesh grows.

young trees (1-2 years old) mainly apply nitrogen fertilizer, so as to apply it sparingly and diligently to promote the growth of trees. Adult trees (more than 3 years old) are mainly applied with phosphorus and potassium fertilizer, and the amount of nitrogen fertilizer is controlled.

Fertilization should be carried out in the sprouting period of new shoots and fruit expansion period in spring. Generally, the fertilizer is made of cake residue, chicken manure and pig manure according to the formula of 1: 2: 7, and 25 kilograms of organic fertilizer is applied to each plant every year. Or in July, October and March of the following year, 1.2 kilograms of cow dung compost and 2 grams of compound fertilizer are applied to each plant. The root system of pitaya is mainly distributed in topsoil, so the method of spreading fertilizer should be adopted, and deep furrowing should be avoided to avoid root damage. In addition, after each batch of young fruits is formed, .3% magnesium sulfate +.2% borax +.3% potassium dihydrogen phosphate is sprayed outside the roots once to improve the fruit quality.

due to the long harvest period of pitaya, organic fertilizer should be applied again, and nitrogen, phosphorus and potassium compound fertilizer should be applied in a balanced way for a long time.

Using fertilizers with too high nitrogen content in pig and chicken manure completely makes the branches thick, dark green and brittle, and easy to break in strong wind, resulting in large and heavy fruit, poor quality, low sweetness and even sour or salty taste.

Therefore, potassium fertilizer, magnesium fertilizer and bone meal should be added during flowering and fruiting to promote the accumulation of sugar and improve the quality of fruit.