How to plant grapefruit seeds

The seeds from the eaten grapefruit are washed with clean water and soaked, then put into the prepared flowerpot, before the seeds are put into the flowerpot, the culture soil should be watered thoroughly and then put in, the small head of the seed should be up, and pay attention to keep the soil moist. After a winter dormancy period, grapefruit will emerge in April of the following year.

Grapefruit can be sown directly with the remaining grapefruit seeds. Pomelo seeds need to go through a certain period of low temperature to complete dormancy, and only the seeds in the state of natural dormancy can emerge.

Seed planting method of pomelo

Grapefruit seeds can be stored in low temperature sand around November to help the seeds complete their natural dormancy. If there are remaining seeds when eating grapefruit from October to December, you can also sow them directly in a flowerpot with a depth of about 5cm. After sowing, water is thoroughly watered and placed in a well-ventilated place to spend a winter. The seeds are naturally dormant, watering once every 7 days, watering once about 30 days after freezing, and then watering for 7 days in mid-March. Wait until April. Grapefruit will grow seedlings, after emergence, strengthen the cultivation and management, and wait until the second spring when you can transplant.

Fertilization method of grapefruit

1. Soil fertilization

After grapefruit transplanting, the soil should be fertilized so that the grapefruit tree can grow healthily. When young trees are young, they can be fertilized by ring or disk method, and when they grow up, they can be fertilized by ditch, hole application and whole garden fertilization.

2. Extra-root topdressing

In addition to soil fertilization, grapefruit can also adopt foliar fertilizer spraying method, foliar topdressing is mainly absorbed through stomata, the amount of fertilizer is less, the effect is also very good, but can not completely replace soil fertilization. Fertilizer spraying can be carried out all the year round, mainly on the back of the leaves. Under the condition of high temperature in summer, topdressing outside root should be around 10:00 or after 4 o'clock in the afternoon after dew drying, and the most suitable temperature is about 24 ℃.

The concentration of fertilizer is generally: urea should be controlled at about 0.5%, urine clearance should be at 5%, calcium superphosphate leaching solution should be about 1%, potassium dihydrogen phosphate 0.4%, potassium sulfate 0.3% plus 0.2% hydrated lime, zinc sulfate 0.2% plus 0.1% hydrated lime, manganese sulfate 0.1% hydrated lime, ferric citrate 0.2%. The fertilizer prepared according to this ratio will make the soil very fertile. Suitable for the growth of fruit trees.