How to fertilize kiwifruit scientifically? A full breakdown of the key techniques
How to fertilize kiwifruit scientifically? Please explain that kiwifruit grows fast, bears fruit early and consumes a lot of nutrients, so it needs rational fertilization every year to meet its requirements. (1) Fertilization timing: kiwifruit is generally fertilized once a year, with 2-3 topdressings. Base fertilizer: generally applied after harvest and before leaf fall. The time is from October to December...
How to fertilize kiwifruit scientifically? Please explain
Kiwifruit grows fast, bears fruit early and consumes a lot of nutrients, so it needs rational fertilization every year to meet its requirements.
(1) Fertilization timing: kiwifruit is generally fertilized once a year, with 2-3 topdressings.
Base fertilizer: generally applied after harvest and before leaf fall. The time is from October to December. It is mainly organic fertilizer, appropriately combined with phosphorus and potassium fertilizers and quick-acting nitrogen fertilizer or human and animal manure, etc.
Bud-breaking fertilizer: applied from the end of February to mid-March before bud break. The bud-breaking fertilizer is mainly quick-acting nitrogen fertilizer, to promote new shoot growth and increase the fruit-setting rate.
Fruit-swelling fertilizer: also called summer fertilizer, applied from May to July. Apply nitrogen fertilizer and potassium fertilizer, and combine with foliar topdressing, spraying 1-2 times with potassium dihydrogen phosphate. This fertilizer is the most important fertilization of the year.
(2) Fertilization amount: the fertilization amount is directly related to tree age and annual yield. Generally, for a 1-year-old tree planted at 56 plants per mu, apply 100 grams of urea, 125 grams of phosphate fertilizer and 345 grams of potassium fertilizer per tree per year; for a 4-year-old tree, apply 300 grams of urea, 375 grams of phosphate fertilizer and 1,035 grams of potassium fertilizer per tree per year; for an 8-year-old tree, apply 650 grams of urea, 835 grams of phosphate fertilizer and 2,070 grams of potassium fertilizer per tree. At the same time, a certain amount of organic fertilizer should also be buried each year to ensure sufficient fertilizer supply. Kiwifruit is sensitive to chlorides; when the chloride ion concentration in the soil reaches 700 mg/kg, it becomes toxic to the plants, so the application of chlorine-containing fertilizers (such as potassium chloride) should be avoided as much as possible.
(3) Fertilization methods: the commonly used methods include ring-shaped trench application, radial trench application, band application and broadcast application.
Click to get more kiwifruit growing techniques
Click to get more fruit growing techniques