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fertilizer material or mixed goods. Rock phosphate, 20% phosphate, triple super phosphate, calcium metaphosphate are some other sources.
In 20% phosphate there is 20 lbs. of P 2-0 5, etc.
Get it? May look difficult a first buy; you’ll soon catch on
K 2-0 is the symbol used for pure potash, etc. Here again the amount of pure plant food varies according to the percent shown in mixed goods or in source of K 2-0.
A 6-20-10 mixed goods means there is 10% K 2-0 or 10 lbs per 100 lbs.
Pound rates for P 2-0 6 are 4He and 7c while those for K20 are 3c and 5c.
The larger rate for each material is allowed for sodded waterways and renovating erodet areas while the smaller rates are allowable under all other practices.
82.5%