1 processing period and method
The denuclearization treatment of rose scent was carried out twice, and the first time was 70% of the inflorescences. Each inflorescence was basically in the 1/3 flowering period and 1/3 unflowered state, and the spraying effect was the best. : 50mg / L gibberellin + 200mg / L streptomycin; the second spraying time is 7-10 days after the first treatment, the treatment concentration is 100mg / L gibberellin + 200mg / L streptomycin The treatment effect is good, and the nuclear-free rate is over 95%.
2 precautions when no nuclear treatment
(1) Strictly control the treatment time, the first time can not be too early, otherwise it will not achieve the purpose of non-nuclear, the second use can not be too late, must be completed before the physiological fruit drop, otherwise it will cause serious falling phenomenon, affecting the yield;
(2) The dilution factor cannot be arbitrarily increased or decreased, and the non-nuclear reagent cannot be mixed with other pesticides or chemical reagents;
(3) The processing time is best after 4 pm, and it can be processed all day on cloudy days.
(4) The non-nuclearization treatment must be combined with the corresponding cultivation techniques to receive good results.
3 supporting cultivation management techniques
The plants with no denuclearization must be robust, have sufficient nutrients for storage, full of buds, and developed roots. At the same time, the soil is fertile, the irrigation and drainage is convenient, the ventilation and light transmission are good, and the weak trees are not suitable for denuclearization. Moreover, the production is strictly controlled in production, and the control per mu is about 2000 kg. Otherwise, the load is too large, resulting in insufficient nutrient storage of the tree, which leads to the weakening of the tree and affects the yield of the next year.
3.1 promote the uniformity of early spring sprouts
When the first treatment of denuclearization, the flowering consistency is the most critical factor in the treatment of non-nuclear. Therefore, it can be treated with lime nitrogen or monocyanamide for 2-3 days before the injury, except that the top buds are not wiped, and the other buds are completely wiped, which can be germinated early, and can be germinated neatly and evenly.
3.2 inflorescence shaping
If the fruit is ripe and consistent, the shape of the ear is beautiful. It is necessary to shape the inflorescence one week before the flowering. Generally, the tip of the ear is 8-10 cm, and the rest are all removed.
3.3 Fruit bag management
Spray the pest and disease fungicide before bagging, and then dry the bag before bagging. The semi-transparent fruit bag is made of paper, one side is paper, one side is cellophane, and the cellophane is transparent material, so that the fruit development in the bag can be observed at any time. After observation, the set of fruit bags, whether the cellophane is facing the light or the backlight, there is no sunburn or burning in the ears. Because of the good light transmission, the fruit bag is also beneficial to improve the light and temperature conditions in the fruit bag, and has a certain effect on early maturity.
3.4 Fertilizer management
After the fruit is harvested, it is applied at 5000-6000 kg per mu, and the fully decomposed farmyard manure or commercial organic fertilizer can be used. Each growing season was carried out according to 3-4 times of topdressing. Nitrogen was mainly used in the germination stage to the early flowering stage; nitrogen fertilizer and phosphorus-potassium fertilizer were dominant after physiological fruit drop; potassium fertilizer was the main color of grape transformation. At the same time of topdressing, foliar topdressing can be carried out, mainly with medium and trace elements and amino acid foliar fertilizers. It is suitable to spray 3-5 times throughout the growing season. Watering in time after each fertilization, pay attention to maintaining moderate soil moisture, avoid flooding when flooding, prevent cracking; while paying attention to timely drainage in the rainy season.
4 pest control
The prevention and control of pests and diseases on the basis of the conventional pest control, pay special attention to the prevention and control of downy mildew in the rainy season, by spraying a combination of protective agents and therapeutic agents; in addition, attention should be paid to the prevention of gray mold during fruit ripening The occurrence of the disease.
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