Before new shoots sprouted, each plant was applied with 1-2 calcium magnesium phosphate fertilizer and urea, and 0.2-0.3 borax, and green manure such as cowpea, peanut and soybean was planted between rows of young navel oranges. If there are buds in the new buds, all buds should be removed as soon as possible. In addition, before mid-February, topdressing spring bud fertilizer, calcium magnesium phosphate fertilizer and urea, borax 0.5- 1 2, and diluted manure or biogas slurry 1-2. After the spring shoots stop growing, spray the mixed solution of 0.3% urea and 0.2% potassium dihydrogen phosphate 1-2 times.
Extended data:
Precautions:
In the process of navel orange planting, the number of weeds in orchard should be observed regularly, and malignant weeds such as bamboo leaf grass and Bidens bipinnata should be removed in time. Because some weeds have very strong nutrient absorption capacity, if they are not pulled out in time, it will not only increase the planting cost, but also affect the growth and development of navel oranges.
When weeding, we should pay attention to cleaning up the roots, because weeds grow very tenaciously and will germinate and grow again as long as there is a certain chance. Weeding methods can be chemical weeding or manual weeding. Pay attention to the concentration of herbicide in chemical weeding to prevent navel orange from being inhibited.
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