How to Rescue Drought-Stricken Citrus Trees? A Detailed Guide to Practical Remedial Methods
How to Rescue Drought-Stricken Citrus Trees
(Agricultural Wealth Network) (1) Provide water in time After a citrus tree suffers from drought, it should be given water in time by methods such as furrow irrigation or sprinkler irrigation. Because its root system and leaves have suffered some damage, the amount of water supplied should be increased gradually, and a sudden large supply of water should be avoided, so as not to continue damaging the roots and leaves.
(2) Increase fertilizer application Increasing fertilizer application can promote the recovery of citrus vitality. Every 7-10 days, spray fertilizer on the leaves 1-2 times, each time spraying a solution of 0.3% urea plus 0.2% potassium dihydrogen phosphate. In conjunction with drought resistance, apply fertilizer to strengthen the fruit and promote shoots to prevent autumn drought, and apply fertilizer after fruit harvest to prevent winter drought. For root-zone fertilization, apply each time to each tree 20% decomposed human and livestock manure water plus 200 grams of urea. Applying water-soluble fertilizer as a top dressing helps the citrus root system absorb and utilize it as quickly as possible.
(3) Spray plant growth regulators A 2,4-D solution at a concentration of 10-15 mg/L can be used to spray the tree canopy to prevent leaf drop.
(4) Prune branches and leaves reasonably In mid-to-late July, in conjunction with summer pruning, for orange trees suffering moderate drought damage, the existing branches and leaves should be retained as much as possible, and pruning should be light; for trees suffering severe drought damage, branches 2-3 years old should be moderately cut back to promote more shoots inside the canopy.
(5) Protect the tree body Whitewash the citrus trunk in time to reduce radiant heat. For citrus trees suffering drought damage, because there are more dead branches and fallen leaves, they are prone to sunburn, so the wounds on the citrus branches and trunk should be coated in time with a 20-fold dilution of thiophanate-methyl or a 20-fold dilution of yekuning for protection. After coating the trunk, wrap it with black plastic film to promote wound healing.
(2) Increase fertilizer application Increasing fertilizer application can promote the recovery of citrus vitality. Every 7-10 days, spray fertilizer on the leaves 1-2 times, each time spraying a solution of 0.3% urea plus 0.2% potassium dihydrogen phosphate. In conjunction with drought resistance, apply fertilizer to strengthen the fruit and promote shoots to prevent autumn drought, and apply fertilizer after fruit harvest to prevent winter drought. For root-zone fertilization, apply each time to each tree 20% decomposed human and livestock manure water plus 200 grams of urea. Applying water-soluble fertilizer as a top dressing helps the citrus root system absorb and utilize it as quickly as possible.
(3) Spray plant growth regulators A 2,4-D solution at a concentration of 10-15 mg/L can be used to spray the tree canopy to prevent leaf drop.
(4) Prune branches and leaves reasonably In mid-to-late July, in conjunction with summer pruning, for orange trees suffering moderate drought damage, the existing branches and leaves should be retained as much as possible, and pruning should be light; for trees suffering severe drought damage, branches 2-3 years old should be moderately cut back to promote more shoots inside the canopy.
(5) Protect the tree body Whitewash the citrus trunk in time to reduce radiant heat. For citrus trees suffering drought damage, because there are more dead branches and fallen leaves, they are prone to sunburn, so the wounds on the citrus branches and trunk should be coated in time with a 20-fold dilution of thiophanate-methyl or a 20-fold dilution of yekuning for protection. After coating the trunk, wrap it with black plastic film to promote wound healing.