TKP

NO.

TEST

SPECIFICATION

1

Appearance

White powder

2

Assay

≥97.0%

3

P₂O₅

≥32.0%

4

K₂O

≥64.0%

5

Insoluble matters in water

≤0.1%

6

pH

11.5-12.5

Crop

Application Method

Dosage Range (per hectare per application)

Application Period

Notes

Food crops (wheat, corn)

Foliar spray

1.8-2.7 kg (mixed with 600-750 liters of water)

Jointing stage, filling stage

Avoid spraying during high-temperature periods; can be mixed with acidic pesticides

Drip irrigation/fertigation

45-60 kg

Seedling stage, booting stage

Apply in 2-3 splits to avoid root burn from single excessive application

Commercial crop (cotton, peanut)

Foliar spray

1.5-2.25 kg (mixed with 450-600 liters of water)

Flower and boll stage, pod-setting stage

Re-spray if it rains within 4 hours after application

Basal mixing

60-90 kg

During soil preparation before sowing

Apply in combination with organic fertilizer (3000-4500 kg/ha)

Fruit trees (apple, citrus)

Foliar spray

2.7-3.6 kg (mixed with 750-900 liters of water)

Flower bud differentiation stage, fruit enlargement stage

 Spraying during fruit coloring period can enhance sweetness

Rhizosphere topdressing

 90-150 kg 

Before germination, after fruit harvest

Apply in furrows along the drip line of the tree crown, cover with soil and water after application

Vegetables (tomato, cucumber)

Foliar spray

1.2-1.8 kg (mixed with 375-525 liters of water)

Flowering and fruiting stage, fruit enlargement stage

Apply once every 10-15 days, 2-3 times in total

Drenching

30-45 kg (mixed with 1500-2250 liters of water)

Seedling stage, fruit setting stage

Avoid direct contact with stem bases to prevent rot

Flowers

Foliar spray

0.9-1.5 kg (mixed with 300-450 liters of water)

Bud stage, full bloom stage

Dilute properly to avoid leaf burn caused by high concentration