How do you calculate fertilizer rate?

How do you calculate fertilizer rate?

To determine the actual amount of each nutrient equivalent in the bag of fertilizer, multiply the weight of the bag by the percentage of that nutrient equivalent in decimal form. So to determine the actual nitrogen content in a 100-pound bag of 19-26-5 starter fertilizer: 100 (pounds) x .

How many pounds of fertilizer do I need for an acre of grass?

Per-acre rates can likewise be converted to per-1,000 square feet by dividing by 43.5. 10 pounds of 10-10-10 per 1,000 square feet equals 10 x 43.5 = 435 pounds per acre. 435 pounds of 10-10-10 per acre equals 435 divided by 43.5 = 10 pounds per 1,000 square feet.

How much potash do I need?

If the results are zero to 60, the potash content is low and needs correcting with 3 pounds potassium for every 1,000 square feet of soil. If the ppm is 61 to 120, apply 2 pounds per 1,000 square feet; for 121 to 181 ppm, a single pound per 1,000 square feet should suffice.

How do you calculate fertilizer units?

Calculation A Amount of fertiliser kg/ha = kg/ha nutrient ÷ % nutrient in fertiliser x 100. Example: You need 20 units (kg) /ha of phosphorus (P) and you plan to use single superphosphate with 8.8% P.

How many pounds of fertilizer do I need per square foot?

Two pounds of nitrogen per 1,000 square feet* is recommended, and your fertilizer contains 20% nitrogen. You should apply 10 pounds of the fertilizer per 1,000 square feet (five pounds from the table multiplied by the two pound recommendation).

How much does a cubic foot of fertilizer weigh?

46-00-00 is approx 48 lbs./ cubic foot. Phosphate varies from 56-60 lbs./ cubic foot.

How many bags of fertilizer do I need for an acre?

Fertilizing an Acre of Lawn Multiply the number of bags you need for 1,000 square feet by this number to determine how many bags you need for an acre. For example, you need (1.1 x 43.56) = 48 bags of Dr. Earth and (0.25 X 43.56) = 11 bags of Pennington UltraGreen.

How do you calculate fertilizer per acre?

Calculate the fertilizer cost per acre. (Commercial fertilizer cost per ton ÷ acres per ton = fertilizer cost per acre.) $190 ÷ 18.3 acres per ton = $10.38 per acre. $240 ÷ 13.6 = $17.65 per acre.

How much area does a 50 lb bag of fertilizer cover?

5,000 to 10,000 square feet
A 50 lb bag of fertilizer will typically cover 5,000 to 10,000 square feet. Re-application should not occur any sooner than every 4 weeks.

How do you add potash to soil?

Potash doesn’t move in soil so if you want to sprinkle it into the root zone, you have to till it into the root zone. On average, you should have 1/4 to 1/3 pound of potassium sulfate or potassium chloride per 100 square feet. To increase the potassium content in your soil, add wood ash to your compost heap.

How many pounds is a unit of fertilizer?

If the N-P-K rating is 10-6-4, for example, and the weight of the bag of fertilizer is 25 pounds, the fertilizer bag contains 2.5 pounds of nitrogen. The one unit of nitrogen in this case would be 1 pound.

What is the unit conversion from N-m to lb-ft?

You can do the reverse unit conversion from N-m to lb-ft, or enter any two units below: Newton metre is the unit of moment in the SI system. Its symbol is N m or N·m. It is a compound unit of torque corresponding to the torque from a force of 1 newton applied over a distance arm of 1 metre.

How do you convert ft lbs to meters?

How to Convert Foot-pound to Newton Meter. 1 ft*lbf = 1.3558179483 N*m 1 N*m = 0.7375621493 ft*lbf. Example: convert 15 ft*lbf to N*m: 15 ft*lbf = 15 × 1.3558179483 N*m = 20.3372692243 N*m. Popular Energy Unit Conversions

How many nm in a foot-pound?

Foot-pound to Newton Meter Conversion Table Foot-pound [ft*lbf] Newton Meter [N*m] 0.01 ft*lbf 0.0135581795 N*m 0.1 ft*lbf 0.1355817948 N*m 1 ft*lbf 1.3558179483 N*m 2 ft*lbf 2.7116358966 N*m

What is 1 lbft of torque in newton meters?

lb-ft or N-m. The SI derived unit for torque is the newton meter. 1 lb-ft is equal to 1.3558179483314 newton meter. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between pound feet and newton meters.