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This invention describes the production of slow release ammonium nitrogen. The patent describes the different forms of nitrogen in the soil. The conversion of ammonium nitrogen to nitrate ions is inhibited by adding pyrimidine to the soil.


 

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Download this file (1966 Amagasa 3284188 Slow Release.pdf)1966 Amagasa 3284188 Slow Release.pdf[ ]210 kB