Kiwi Fertilization Program

Kiwifruit berry vines are native to the Yangtze River basin in China and are cultivated in Henan, Shaanxi, Hunan, and Sichuan provinces. The fruit's edible value and medicinal value are high.

The kiwifruit adapts to the warm and slightly acidic soil and grows vigorously. The results are numerous and early, requiring large amounts of nutrients, timely and effective application of chemical fertilizers, and supplementation of nutrients is very important; Kiwifruit is preferred for potassium, chloride, and iron. Attention should be paid to these three nutrients. Ample supply. The approximate annual fertilization situation is as follows:

First, base fertilizer:

After fruit harvesting, soil sampling was used to determine soil nutrient content to determine the type and amount of basal fertilizer application. The approximate ranges were as follows:

Sapling: Organic fertilizer 50 kg/plant; Superphosphate 0-0.35 kg/plant; Potassium chloride 0-0.35 kg/plant; Urea 0-0.4 kg/plant.

Into the fruiting tree of adulthood: organic fertilizer 50 ~ 75 kg / strain; superphosphate 0 ~ 1.5 kg / strain; potassium chloride 0.2 ~ 0.5 kg / strain; urea 0 ~ 0.5 kg / strain.

Second, top dressing:

Sapling: The top dressing uses a small amount of multiple principles, generally from before and after germination to July, each plant applies 0.2-0.3 kg superphosphate 0.1-0.2 kg; potassium chloride 0-0.25 kg (specific values ​​based on plant nutrient measurement results And then).

Into the tree: generally divided into two to three applications, the nutrient should be determined before application, and determine the amount of fertilizer according to the determination, so as not to use too much nitrogen fertilizer, causing the shoot crazy long.

(1) Germ Fertilizer: It is applied before and after germination from March to March to promote axillary bud germination and growth of branches and leaves, and to increase the fruit setting rate. Fertilizers are mainly available nitrogen fertilizers, with phosphorus and potassium fertilizers, etc.; 0.2-0.5 kg urea/strain, 0.2-0.5 kg/strain of superphosphate, and 0.2-0.3 kg/strain of potassium chloride.

(2) Fruit-promoting shooter fertilizer: applied after the flower is dropped from June to August to supply nutrients for fruit enlargement, shoot growth, and flower bud differentiation. It should be applied in combination with nitrogen, phosphorus, and potassium, and special attention should be paid to the nutrient measurement of the plant. The amount of the guiding role, generally should be divided into two applications, the total: urea: 0.1 ~ 0.3 kg / strain, superphosphate 0.2 ~ 1.0 kg / strain; potassium chloride 0.3 ~ 0.5 kg / strain (Note: When the soil When the oxygen content exceeds 1.60%, other potash is used instead of potassium chloride).

(3) Extra-root fertilizer: It is determined that the fertilizer and the number of fertilizers to be sprayed on foliar will be determined after the young leaves grow to fruit enlargement phase, combined with soil and plant nutrient determination results.

Such as: soil determination results effective iron is less than 10ppm, effective boron is less than 0.5ppm, effective zinc is less than 2.0ppm, effective copper is less than 0.5ppm when the corresponding element can be sprayed selectively: 0.3% ~ 0.5% urea - 0.3% FeSO4 solution, 0.1% borax solution, 0.1% zinc sulfate solution, 0.1% copper sulfate solution, and the like.

Application method: Select the morning and evening on cloudy or sunny days, usually spray 3 to 4 times, every other week. If there is a shortage of nutrients and there are even symptoms of deficiency, the foliar spray should be used together with other methods such as irrigation and bottle feeding.

Yangling Taide Agricultural Technology Co., Ltd.

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