When to plant grapefruit
A small knowledge of life, introducing when to plant grapefruit and a detailed explanation of grapefruit planting time and management methods in the field of green plants and flowers, the specific introduction is as follows:
Grapefruit, also known as pomelo, is a common fruit in our daily life. It has a unique taste, low sugar content, and is good for clearing heat and detoxifying, as well as relieving phlegm and coughing. It is one of the must-have fruits for dieters and pregnant women. Let's find out when to plant grapefruit and how to plant it for high yields?
When to plant grapefruit?
Grapefruit is planted during the low-temperature period of winter, from November to December, and the seedlings grow faster the following year. The planting distance depends on the soil fertility and topography, generally 7 meters by 7 meters or 7 meters by 8 meters. When digging seedlings, it's best to bring a ball of soil or keep the roots moist. The planting hole should be mixed with 10-20 kilograms of decomposed organic fertilizer and superphosphate lime, mixed thoroughly and compacted, and the plant should be slightly higher than the original ground level after planting. The area around the plant should be covered, pay attention to watering, and cover the plant with a small amount of straw to avoid leaf fall that could affect future growth.
How to plant grapefruit for high yields?
The specific planting steps are basically the same as those for ordinary pomelos, but there are some precautions that must be mastered to achieve high yields.
1. Master the planting density
Plant double rows per ridge with a row spacing of 4 meters, a plant spacing of 3 meters, and a ridge spacing of 8 meters. Grapefruit has good adaptability and strong shooting ability, with three flushes per year. The branches are long and robust, have good flowering ability, and all flushes can become fruiting branches, with good yield performance.
2. Pay attention to water and fertilizer management
Grapefruit is known to love "eating fertilizer," so you should:
(1) Focus on top dressing for young trees. From March to October of the first two years after planting, apply "green bag fertilizer + compound fertilizer + urea" liquid fertilizer twice a month at the base of the tree.
(2) Apply organic fertilizer for trees over 3 years old.
From the third year after planting, open a strip-shaped groove 80 centimeters long and 40 centimeters deep around the tree crown before each flush and in late October, and apply 1 to 1.5 kilograms of cake fertilizer per plant.
(3) Apply liquid fertilizer frequently. In conjunction with pest control, spray leaves with green bag fertilizer 200 times a year.
(4) Promote semi-no-till grass planting. Plant grass in the ridges, early spring sowing Sudan grass seeds at 3 kilograms per mu, cut the grass in late June to cover the tree base, and in late October, cut the grass and mix it with organic fertilizer buried in the soil. Conduct 2-3 tillings and weeding per year in the ridge ditches and around the tree base.
3. Pay attention to preserving flowers and fruits
Young grapefruit trees grow vigorously, and the conflict between shoots and fruits is significant, requiring manual adjustment to bear fruit early and yield abundantly.
(1) Control water in September-October, combine soil fertilization with root exposure, and when the leaves are slightly curled, cover the fertilizer with soil to promote flowering.
(2) Apply spring fertilizer early, applying spring fertilizer to the soil or spraying green bag fertilizer 200 times before germination to promote flowering.
(3) Use growth regulators to preserve fruits: spray 0.05% ammonium molybdate and 0.1% borax during the full bloom period; spray once 100 mg/kg of gibberellin after flowering and 15-20 days after flowering.
4. Prevent diseases
The main pests and diseases of grapefruit include anthracnose, scab, canker, leaf miner, butterfly, and fruit-sucking moth. It is especially important to prevent acute anthracnose in the first and second years after planting, as this disease can destroy the orchard. Acute anthracnose first appears as a scalded-wilted state on young leaves and shoots, then quickly turns black, causing plant death. It should be strictly prevented in high temperatures and rainy seasons, and immediately spray green bag fertilizer 500 times liquid 1-2 times when symptoms are found.
The above is a comprehensive method for when to plant grapefruit and a detailed explanation of grapefruit planting time and management methods, hoping to solve your problems in green plants.