How to Accurately Calculate Fertilizer Requirements for Your Soil?

Land should be cared for like oneself, always showing love and appreciation for the soil you cultivate. Avoid overuse and excessive acidity. Fertilizers should be applied in the proper amount and ratio according to the specific needs of the plants.

Once you have obtained the results of your soil sample analysis from a laboratory or government soil department that offers soil examination services, you can proceed to calculate the amount of fertilizer required for your acre of land based on the nutrient recommendations provided by soil scientists.

The primary nutrients necessary for plant growth are nitrogen, phosphorus, and potassium, often referred to as N-P-K or complete fertilizer. These nutrients are crucial for providing the essential elements needed by plants.

Here are the sample problem for fertilizer computation:
A rice field experiment calls for the application of 140-100-130. How many kilogram of 14-14-14,17-0-17 and urea can applied to 625 square meter ?

Write the Given:
Recommended Rate/Nutrient Requirements 
140-100-130
Fertilizer to be Applied:
Complete fertilizer (14-14-14)
17-0-17
Urea (46-0-0)

Formula:                              

For Kilogram
For Bag 
To Get Recommended Rate For Every Fertilizers, You will subtract it to the Recommended Fertilizer until it become zero.
Note: that the subtrahend will depend to the fertilizer given.

  140-100-130
- 100-100-100  Recommended Rate For 14-14-14
----------------
   40 - 0 - 30
-  30 - 0- 30     Recommended Rate For  17-0-17
----------------
   10 - 0 - 0
-  10 - 0 - 0      Recommended Rate For Urea
---------------
      0 - 0 - 0

Then Compute all Fertilizer one by one depend to their Recommended rate by substitution to this Formula:

                                          100
Weight of 14-14-14 = ---------------
                                          .14

Weight of 14-14-14 =  714.29kg/ha

To answer the question how many kilogram of fertilizer will be applied to 625 square meter, use this Formula:



       625 square meter  X 714.29kg
x = --------------------------------------------
                  10,000 square meter

                 446,431.25 kg
x=---------------------------------------------
                      10,000 

x= 44.64 Kg

44.64 Kg of Complete Fertilizer for 625 Square meter.

DO IT TO THE 17-0-17 AND UREA

Comments

Popular this week

Tamang sukat sa kulungan ng manok (broiler at layer)

Tamang pag-apply ng abono sa halaman

Sloan and SPayLater Users Review and Guide

Personal Loan in Mabilis Cash | FinTech Review

5 advantages of being a Card Bank member

2 Ways to Cash Out Spaylater Credit Limit

Pag-IBIG short-term loan eligibility now at least 12months of savings

Paano gumawa ng sariling Egg Incubator?

List of BSP Licensed Digital Bank in the Philippines

Viber Rakuten will launch a new e-wallet this 2025