Planting techniques of nectarine in greenhouse

Nectarine is a variety of common hairy peach. It has a beautiful appearance and a sweet and sour taste. It has high nutritional value and planting value. Next, let's take a look at the nectarine planting technology in the greenhouse.

(1) setting up sheds for land preparation

Nectarine is suitable to grow in a loose, deep and nutrient-rich environment, so try to choose a greenhouse in a loam soil rich in organic matter. Plastic greenhouse is usually used in the greenhouse where nectarines are planted. After setting up the shed, it is necessary to turn the soil deeply and level it, and then dig a cave with deep 60~80cm and wide 80~100cm, a field border 1 meter apart, and apply 5000 kilograms of organic fertilizer and 100kg calcium fertilizer per mu.

II. Transplanting and planting

After the nectarine seedlings were cultivated, they were planted according to the plant spacing of 3 meters and the row spacing of 5 meters.

Third, the time of withholding the shed

The increase of temperature in the buckle shed depends on whether the natural dormancy of the cultivated varieties has been completed or not. Generally, the varieties with low cold capacity are needed. If the greenhouse is fastened early, the greenhouse will be fastened late. In Hotan, the general greenhouse time is from late December to late January of the following year. The earlier you cover, the sooner you mature. Another basis for determining the buckle shed time is the expected time when the fruit is on the market. If it is expected to be listed late, the buckle shed will be late, and the staged buckle shed can avoid centralized listing.

IV. Management in the shed

1. Temperature and humidity control

After buckling the shed, the temperature in the shed gradually rose to 15-20 ℃, the ground temperature rose to 14-18 ℃, and the air relative humidity reached 40-60%.

The temperature in the greenhouse at flowering stage should be about 20 ℃, the highest temperature should not exceed 25 ℃, and the temperature at night should not be lower than 5 ℃. In order to ensure that the temperature is not lower than 5 ℃, heat it with a stove or ignite an alcohol lamp when you encounter a cold snap. The relative humidity does not exceed 60%.

During the fruit expansion period, the temperature was controlled at about 25 ℃ in the daytime, no more than 28 ℃ in the daytime, and no less than 10 ℃ at night.

two。 Fertilizer and water management

In order to reduce the evaporation of water on the ground, reduce the humidity and increase the ground temperature, the ground should be covered with plastic film, irrigate before the shed and irrigate as little or no water as possible after buckling the shed.

Topdressing should be carried out before sprouting, during the period of flowering and fruit expansion, compound fertilizer is better, and special attention should be paid to the spraying of foliar fertilizer. Urea or potassium dihydrogen phosphate is sprayed every 10-15 days after flowering for 2-3 times.

3. Pest control

Nectarine diseases and insect pests are relatively light in the greenhouse, mainly in the middle of summer after picking fruit. It is necessary to monitor all kinds of diseases and insect pests and control them timely. Spray 3-5 Bomedo stone sulfur mixture in front of the buckle shed to clean the residual branches and leaves, spray 2000 times of insect mite light when damaged by two-spot spider mite, and control aphids with aphid lice.

The planting of nectarine in greenhouse is basically the same as that of ordinary peach. Controlling the temperature and humidity in the greenhouse is the key link to improve the fruit setting rate and achieve premature production, high yield and high quality.