It's a new year in a flash.
Looking back and summarizing the year of 20 17, I believe that everyone just wants to say two words "resistance" in their hearts. Whether it's drought or cold, rain or flood. Swallow the bitter words and be a hero in the future.
2065 438+08 65438+ 10 went a little fast, and it was the peak season of sugar orange sales. Some people are unwilling to sell it, while others are ready to accept it. However, how to manage the fruit after picking?
Do a good job in clearing the garden, recovering after delivery and getting ready for bloom in spring, and start all over again!
postpartum recovery
Postpartum women often need "confinement" to adjust and recover because of "deficiency of qi and blood".
Citrus fruit-bearing trees also need to "sit on the moon" to restore tree vigor, enhance tree resistance, and lay a good foundation for fruit-bearing in the coming year.
Bian Xiao, is this "confinement" for fruit trees? Yes, ahem, listen carefully.
The "confinement" of traditional Chinese medicine pays attention to warming up, one chicken a day, enriching blood and benefiting qi; The basic principles are caution, cold protection and warmth, comfortable work and rest, diligent cleaning, adjustment of diet, use of abdominal belt, and collection of pelvis and nutrition.
Postpartum citrus also needs to "replenish blood and qi".
By cleaning, disinfecting and killing insects with pesticides (called western medicine),
Through nutrition (called Chinese medicine), we can warm up the cold, resist diseases and improve our quality.
By pruning and adjusting the tree structure, high-yield tree species are cultivated.
First, spray the medicine in time to clear the garden
Implement the principle of spraying first and then shearing.
In winter, the ecological environment conditions are not conducive to the survival of pests and diseases, and the activities of pests and diseases are poor, and the distribution is relatively concentrated, which is convenient for prevention and control. Before winter, the diseases and pests on the leaves of orange orchards include soot disease, canker, dermatosis, fatty spot disease, dermatosis, moss and psyllid, red spider, rust tick, scale insect, liriomyza sativae, whitefly and so on. According to the occurrence of the disease, select the corresponding effective components for prevention and control.
Because the overwintering generation has strong resistance to pests and diseases, broad-spectrum drugs with strong killing power, quick effect and long-term effect should be selected. According to citrus varieties, tree age, cultivation management, climatic conditions, pests and diseases, etc. Appropriate chemicals should be selected and sprayed evenly (all over branches and leaves) in suitable weather to prevent fruit from being infected with germs during picking and cutting. With high-quality foliar fertilizer, nutrition can be quickly supplemented and tree vigor can be restored.
Review the historical articles and click on the links of citrus cultivation to make the garden clearing scientific.
Lipid macular disease:
Second, plastic finishing and cleaning
After the first spraying, prune the citrus after the temperature drops in winter (avoiding winter shoots) and before spring buds.
1, pruning: thinning dense branches, cutting off branches and leaves of diseases and pests, and thinning diseased leaves, dead branches and residual fruits of scale insects, longicorn beetles, canker diseases and soot diseases;
Remove weeds around the orchard, take the branches of pests and diseases out of the orchard and burn them, spray tree-protecting bactericide for disinfection and sterilization, and eliminate overwintering pests and diseases and overwintering places. When trimming the wound, apply grease "antiseptic film" in time to seal the wound and protect the wound healing.
For trees put into production, winter shoots or frozen new shoots, it is not recommended to shrink or cut them sharply, so as not to upset the balance of trees and affect the fruit setting in the coming year. After the fruit is stable in spring, do another treatment.
2. Cleaning: thoroughly eradicate weeds and nearby host plants, and thoroughly remove lichens, fresh moss and dead piles; Dig out diseased plants of Huanglongbing, dig out or saw out dead trees or branches damaged by Cerambycidae and resin diseases; Remove pupae of overwintering butterflies, leaf rollers and other insects on trees, and brush off overwintering scales on branches.
3. Shaping: using the pruning technology of big branches, sawing off the upright big branches and "opening the skylight" to reduce the height of the crown; Sparse the branches that are too dense or crossed, pull open the upright branches with ropes and open the crown; Cross-seal the trees and leave 20 cm for thinning. Create a high-yield tree with ventilation, light transmission and three-dimensional effect.
Resin disease (gum flow):
Third, quickly supplement nutrition.
As we all know, winter fertilizer before and after citrus fruit picking, also known as monthly fertilizer, is conducive to restoring tree vigor as soon as possible, has good leaf protection function, prolongs leaf life, prevents citrus from falling leaves in winter, ensures stable and high yield of citrus trees, and improves quality.
Monthly fertilization is divided into three stages: foliar fertilizer spraying, winter fertilizer burying and water fertilizer spraying.
1. After the fruit is picked, firstly clean the garden with medicine, and immediately supplement the nutrition with foliar fertilizer. In this way, tree vigor can be restored through leaf absorption, stress resistance can be improved, fruiting branches can be protected, and nutrients for flower bud differentiation can be supplemented.
Foliage fertilizer is mainly composed of organic matter, high phosphorus and medium and trace elements. , combined with pests and diseases spraying 1-2 times.
Elio's quality plan: Guo Shuang or Xie Yida or Acadia+Super Phosphorus Potassium+Agricultural Elf or Candu or Yanhua Legend, spray 1-2 times.
2. Enlarge the hole and bury the winter fertilizer.
Winter fertilizer is generally applied between slight cold and severe cold, before and after fruit picking, and Mengding basal fertilizer or Mengdingqiang+nine elements+high potassium compound fertilizer is mainly applied by ditching and burying.
The winter manure applied in the soil plays a role in keeping warm and protecting roots in winter, and at the same time, it slowly decomposes under the activity of microorganisms, which is beneficial to the gradual absorption and utilization of citrus in the case of slowing down the growth in winter and weakening the absorption capacity of roots, so that more organic nutrients can be accumulated on trees for the need of budding and flowering in the next spring.
For the specific plan of winter fertilizer application, review the historical articles and click the link to apply winter fertilizer to citrus planting.
3. Sprinkle available water-soluble fertilizers.
Spraying quick-acting water-soluble fertilizers after harvesting, mainly organic water-soluble fertilizers such as humic acid, amino acids and alginic acid, water-soluble fertilizers and water-soluble fertilizers of medium and trace elements, and spraying 65,438+0-2 times before flowering after harvesting.
Function: Rhizosphere can fully supplement nutrients, nourish roots and soil, quickly restore tree vigor after delivery, prevent tree from freezing injury in winter and winter, prevent defoliation in spring and winter, and solve the problems of poor roots, weak spring shoots, deformed flowers and difficult preservation of fruits in cold weather.
Aliao's quality scheme: Li Meng 28 or Jinguoshuo or Boge 8 18+ Xerox high phosphorus or balanced water-soluble fertilizer 500- 1000 times solution.
Use Li Meng 28 or Jinguoshuo or Baoge 8 18 to prevent freezing and cold;
Use Li Meng 28 or Jinguoshuo or Baoge 8 18 to prevent defoliation in winter;
Use Li Meng 28 or Jinguoshuo or Baoge 8 18 to prevent defoliation in spring;
Using Li Meng 28 or Jinguoshuo or Boge 8 18 to prevent abnormal spring shoots;
Use Li Meng 28 or Jinguoshuo or Baoge 8 18 to promote strong flowers and prevent abnormal flowers;