How to manage Gannan navel oranges through the four seasons? A detailed guide to growing techniques
How to manage Gannan navel oranges through the four seasons? Please explain the methods. The four-season management methods for Gannan navel oranges can refer to the following methods: 1. Protect autumn shoots in autumn. Autumn shoots are the main fruit-bearing mother branches of navel oranges. Depending on different climatic conditions, promote the growth of autumn shoots. Generally, one week after Minor Heat, apply nitrogen fertilizer according to the fruit load of the plant to stimulate budding. After Major Heat...
How to manage Gannan navel oranges through the four seasons? Please explain the methodsThe four-season management methods for Gannan navel oranges can refer to the following methods:
1. Protect autumn shoots in autumn
Autumn shoots are the main fruit-bearing mother branches of navel oranges. Depending on different climatic conditions, promote the growth of autumn shoots. Generally, one week after Minor Heat, apply nitrogen fertilizer according to the fruit load of the plant to stimulate budding. After Major Heat, release the shoots. When the buds are half a grain of rice long, spray 25% dimehypo 600x solution to control citrus leafminer, spraying once a week until the autumn shoots stop growing. At the same time, spray a shoot-strengthening fertilizer once.
2. Protect leaves in winter
Ensuring that navel orange leaves are numerous and dark green is an important guarantee of high yield. From near fruit harvest to before flowering the following year, emphasis should be placed on protecting leaves. That is, apply pre-harvest fertilizer half a month before harvest, and apply post-harvest fertilizer within half a month after picking fruit. Both fertilizer applications should be mainly phosphorus and potassium fertilizers. In winter, basal fertilizer should also be applied together with orchard cleaning: apply 20 kg of pig and cattle pen manure, 800 g of cake fertilizer, and 500 g of superphosphate per plant, along with compost and burned-soil fertilizer, to improve the tree's cold resistance and leaf-protection ability.
3. Protect flowers in spring
Applying flower-protection fertilizer well is the prerequisite, so as to promote plump flower buds and good quality. When 50% of the flowers on the plant have shed, spray 0.3% urea and 2% potassium dihydrogen phosphate as a foliar application to protect flowers. If there are many flower buds but not many spring shoots, the longer branches may be appropriately shortened and some vigorous shoots thinned out. After flower shedding, spray 0.2% to 0.25% potassium dihydrogen phosphate 2 to 3 times consecutively. Pay attention to removing buds and controlling shoots to prevent late fruit drop. While strengthening fertilizer and water management, fruit bags should also be put on the fruit to protect it.
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