| 摘要 |
PROBLEM TO BE SOLVED: To obtain a fast-acting compound fertilizer that includes a water-soluble nitrogen fertilizer and a water-soluble fertilizer and does not solidify, because a part of solidified compound fertilizer is powdered and splashed to hinder proper scattering of the fertilizer, in the situation where scattering using a machine for efficient fertilization is introduced in agricultural modernization, and a compound fertilizer without solidification is required.SOLUTION: A compound fertilizer is a mixture of a water-soluble granular fertilizer and a coated granular fertilizer. The water-soluble granular fertilizer is a non-coated granular fertilizer having a water content of 10 mass% or less when producing the compound fertilizer. The coated granular fertilizer is a fast-acting fertilizer that is obtained by coating a granular fertilizer containing nitrogen with a membrane of a moisture permeability of 100-1,000 g/m24h. The compound fertilizer contains the coated granular fertilizer of 15-80 mass%. |
