COMPLEX CHLORINE-FREE FERTILIZER WITH MICROELEMENTS FOR HOP GROWING

摘要

The invention relates to manufacture of mineral fertilizers, in particular to manufacture and use of complex chlorine-containing fertilizers which can be used at chemical plants, manufacturing complex fertilizers for growing hop. The inventive task is aimed at working out complex chlorine-free granulated fertilizers, including slow disintegration fertilizers adding microelements, and, if required biologically active and binding agents raising the level of yield crop and production quality. For solving the inventive task there proposed a fertilizer for hop growing with the following component ratio, wt% : nitrogen-phosphate-potash fertilizer 1: (0.54-0.76): (1.15-1.46) – (75.72-94.86), sulphur (4.0-20.0), magnesium (1.0-3.0), boron (0.05-0.25), zinc (0.05-0.35), iron (0.04-0.20) copper up to 0.15, manganese up to 0.25, a biologically active agent Epin up to 0.0000125 and a binder up to 0.25. Water-soluble polymers or polyacrylamide are used as the binder, while zinc, iron copper and manganese comprises as sulphates or chelates. It is established that the use of claimed complex fertilizers stipulates a greater amount and fineness of hop dull ends per a plant with maximum average mass of a leaf, thus resulting hop crop yield increase by 15.2-17.4% compared to the prototype.