| 摘要 |
1. The invention concerns a nitric fertiliser in solid form, characterised in that it is a waste product in polymerisation process of polycaproamide, particularly from process of production of fiber-creative polycaproamide, consisting totally up to 50 weight % of caprolactam and its oligomers and remaining polymer, and in waste product nitrogen constitutes 1-15 weight %, caprolactam 0.1-12 weight % and substances soluble in water 1-20 weight %, and 5% reaction of hydrous solution is pH=2-12, with alternative addition of phosphorus compounds, especially phosphates in amount 4-10 weight % and microelements as iron, manganese or titanium of total amount 0.001-2 weight %.2. The invention concerns a nitric fertiliser in liquid form, leaves-applicable or hydroponic, characterised in that it is a hydrous extract of waste product in polymerisation process of polycaproamide, particularly from process of production of fiber-creative polycaproamide, consisting of caprolactam and its oligomers in total amount 1-10 weight % and nitrogen in dry form in amount 0.05-15 weight % and in liquid form in amount 0.01-1 weight %, and reaction of hydrous solution is pH=2-12, alternatively with addition of phosphate compounds, particularly phosphates in dry form in amount 0.05-15 weight % and in liquid form in amount 0.01-1 weight % and microelements as iron, manganese or titanium in total amount up to 1 weight %.
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