In recent years, in Shaanxi, Hebei, Shandong, Henan and other regions, the cultivation area of ​​greenhouse nectarines has become larger and larger. However, nectarines in the greenhouse have high requirements for management techniques, and the following five key points should be grasped in management.
Soil, Fertilizer and Water Management
Greenhouse nectarines should always keep the soil loose to promote the formation of strong root groups and tree growth, and improve the ability of fruit setting. After fertilizing and watering, cultivating should be timely. Fertilizer management should adhere to the principle of small amounts and multiple times, and water in time after each fertilization to promote fertilizer conversion and plant absorption.
Sprout management
Greenhouse nectarine has a high germination rate and strong branching ability. Improper management is prone to deterioration of light. In the production, attention should be paid to promptly wipe the buds, remove the shoots, and open the branches to maintain good permeability of the tree.
Temperature and humidity management
February is the flowering period of nectarines in the greenhouse. The environmental conditions must be strictly controlled. The highest temperature should be controlled between 22℃～25℃, and the lowest should be kept at about 5℃. The air humidity should be reduced to 50%～60%. Pay attention to prevent high temperature hazards. .
Flower and fruit management In early February, when the flower buds swell, the flowers should be thinned in time to concentrate nutrient supply and ensure the growth of the remaining flowers and fruits. Since the nectarine in the greenhouse grows in a confined environment, pollination is usually insufficient. After the flowers are opened, attention should be paid to pollination to increase the fruit setting rate. Pay attention to fruit thinning in time after fruit setting, which should be completed within 1 month. Generally, 3 to 4 fruits are left on long fruit branches, 2 to 3 fruits on medium fruit branches, and 1 to 2 fruits on short fruit branches.
Pest Control
Greenhouse nectarine diseases and insect pests are mainly aphids, mites and perforation disease, and the prevention and control of diseases and insect pests should be strengthened in time according to the occurrence degree of the diseases and insect pests in production. The greenhouse environment is low temperature and humidity, which is conducive to the occurrence of leaf shrinkage. 800 times liquid Rambo can be sprayed for control; for aphids and mites control, 4000 times liquid should be sprayed at the initial stage of 2.5% enemy killing or 20% killing Control.
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