| 摘要 |
<p>SUMMARY The present invention refers in first instance the knowledge of the last generation of fertilizers with very low conductivity and containing polyamines (cadaverine and putrescine, among others). The synergism between cadaverine and putrescine allows a significant reduction of the concentration of N.P.K. contained in the "conventional" fertilizers. The invention also comprises the method of obtaining fertilizers from specific industrial waste products or subproducts with difficult ecological reuse. Its application leads to a significant reduction of the harvesting periods and a great increase of the yield of different crops.</p> |
