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In-depth Analysis of Multiple Applications of Monopotassium Phosphate

The solution of quality monopotassium phosphate is indeed acidic with a pH of 4.6 at a concentration of 1%. However, the plants directly absorb and utilize the anions - dihydrophosphate and the cations - potassium ions dissolved in water from the monopotassium phosphate. The balanced absorption, even by a long-term use, will not lead to soil acidification. Therefore, it is a carefree one for farmers to put into use. Besides, monopotassium phosphate severs as the core material of most quality water-soluble fertilizers in the market.

In-depth analysis of its multiple applications

★ The Foliar Spray: Its concentration shall be within 0.1% ~ 0.3% , that is, 15 ~ 45g monopotassium phosphate shall be dissolved in 15kg water. Spray 30 ~ 50kg solution per acre every 10 ~ 15 days with preferable 2 or 3 times. Favorable time will be before 10 a.m., after 5 p.m. or overcast days. Immediate rain, within an hour after spray, calls for a make-up one. For the cereal crop in its middle and late stage, the concentration can be leveled up to 0.5 ~ 1.0% , that is, 75 ~ 150g monopotassium phosphate shall be mixed with 15kg water.

★ The Soil Flush: Flush 2 ~ 5kg monopotassium phosphate per acre with water. For middle and late periods, add to 5 ~ 10kg.

★ The Root Irrigation: Irrigate equally into every crop root with a favorable concentration of 0.1 ~ 0.3%.

★ The Drip Irrigation: Depending on the growth of crops, the concentration varies from 0.05% to 0.3%. Evenly drip around the roots. Being inorganic salt, major fertilizers will scorch leaves and roots with a high concentration, which makes the density crucial to systematic fertilizer spray and drip. The most accurate way is to evaluate the electrical conductivity at the outlets and keep it within the general safe range of 1.0 ~ 3.0 ms / cm. As to the buffering effect of the soil, the concentration can be slightly higher for facility drip irrigation with 1 ~ 3 kg of monopotassium phosphate per cubic meter of water (1000 kg) .

★ The Seed Soaking: The concentration is generally 0.2%, that is, 100g monopotassium phosphate shall be dissolved in 50kg water. Soak the seeds for 18 to 24 hours then fish them out to dry before sowing. The soaking solution can be reused for the foliar spray and the root irrigation.

★The Seed Coating: The concentration can be 1%, that is, 100g monopotassium phosphate is inside 10kg water. Sprinkle the solution then well mix the seeds and wait them dry for afterward use.

Or sprayers are applied to be time saving. 1kg solution is enough to coat on 10kg seeds.

★ The Root Dip: Dip the root before transplanting with a mud-like mixture of 0.4 ~ 0.5 kg monopotassium phosphate, 2 ~ 3 kg dry fine soil and some water, or with the 0.5% solution.

★ the Matrix Application: It can replace other phosphate and potassium as a base fertilizer with 5kg per acre well mixed in 10kg of fine soil or farm manure. For fruit trees, apply the furrows directly with 50 ~ 200 g for each differed by their ages.

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