EXTRA-ROOT FERTILIZER WITH PROTEIN HYDROLYSATES, PROCESS OF PREPARATION AND METHOD OF APPLICATION

摘要

The invention relates to an extra-root fertilizer, to a process for preparing the same and to a method of application. The claimed fertilizer comprises 4.42...17.76 g/l total nitrogen, of which 0.04...0.18 g/l ammonia nitrogen, 0.001...0.01 g/l phosphorus pentoxide as organic phosphorus, 0.01...8.57 g/l potassium oxide, 22.19...98.12 g/l collagen hydrolysate, 0.32...3.01 g/l iron, 0.12...1.02 g/l zinc, 0.14...1.02 g/l copper, 0.24...0.51g/l boron, 0.17...2.31 g/l magnesium, 0.14...0.667 g/l manganese, 4.08...29.59 g/l SOhaving a pH between 5.4...6.8. The claimed process consists in dissolving in water, while stirring, the collagen hydrolysate at a temperature of 35...40°C, adding the borax, cooling the solution down to 28...32°C after homogenization, and adding a solution obtained by dissolving in water the meso- and micro-elements as hydrated sulphates, at a temperature of 22...25°C, after homogenizing the two solutions and chelating the micro-elements in the resulting solution there is added potassium sulphate and is stirred at a temperature of 28...32°C to the dissolution at a temperature of 30...32°C, then it is brought to a volume of 1000 ml with demineralized water. The method of application consists in spraying the product on plants as 0.25...2% solution, in an amount of 250...1500 l/ha depending on the crop and vegetation phase.