\n
With this\u00a0article, I will show exactly what they mean and how\u00a0you can calculate,\u00a0precisely how much of a certain fertilizer mixture\u00a0you must apply, in order to get the right amount of an element in your soil.<\/span><\/span><\/p>\n \n \n \n The numbers on a fertilizer mix like\u00a0for example a <\/span>10:10:10<\/span> fertilizer, probably the most common of all, means:<\/span><\/span><\/p>\n \n 10<\/span> parts nitrogen (N),\u00a010 parts phosphorus (P),\u00a010 parts potassium (K)<\/span><\/strong><\/p>\n \u00a0<\/span><\/span><\/p>\n But that\u2019s not all!\u00a0 <\/span>On many fertilizer packages you see a 4th<\/sup> number in brackets; for example <\/span><\/span><\/p>\n \u00a0<\/span><\/span><\/p>\n From what we have just learned, we will have<\/span><\/span><\/p>\n \u00a0<\/span><\/span><\/p>\n 2 parts nitrogen (N),\u00a0\u00a0<\/span>3 parts phosphorus (P),4 parts potassium (K)<\/strong><\/span><\/span><\/p>\n \u00a0<\/span><\/span><\/p>\n The fourth number (27) – in brackets – is the total percentage (%) <\/strong>of nutrients in the mixture.\u00a0\u00a0<\/span><\/span><\/span><\/p>\n So we have a total of 9 parts ( 2 + 3 + 4) nutrients in that mixture, that ads up to 27% of the total mixture.<\/span><\/span><\/p>\n \u00a0<\/span><\/span><\/p>\n In other words; for every 100 kg of fertiliser there will be a total 27 kg N, P, K in the mixture.<\/span><\/span><\/p>\n \n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>2<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span>27<\/span><\/span><\/span><\/p>\n the nitrogen (N) is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span>9\u00a0\u00a0 <\/span>x \u00a0\u00a0\u00a0 <\/span>1\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span>=\u00a0\u00a0 <\/span>6\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>kg N for every 100 kg of fertilizer mixture<\/span><\/span><\/p>\n \u00a0<\/span><\/span><\/p>\n Therefore, two ninths of 27 kg, or 6 kg, of every 100 kg of mixture will be nitrogen.<\/span><\/span><\/p>\n \u00a0<\/span><\/span><\/p>\n As for a 1:0:0(40) mixture, 40 kg Nitrogen will be added to the soil for\u00a0100kg fertilizer and no P, K<\/span><\/span><\/p>\n \u00a0<\/span><\/span><\/p>\n I hope this makes sense?\u00a0\ud83d\ude42<\/span><\/span><\/span><\/p>\n \n With this formula, you can easily calculate how much\u00a0of a certain\u00a0fertilizer mix\u00a0you must\u00a0apply to add a certain amount of N:P:K to the soil.<\/span><\/span><\/span><\/p>\n \n Suzana, one of the first members of My Grape Vine, send me this question a few days ago. She wanted to know what those numbers on a fertilizer packaging means. With this\u00a0article, I will show exactly what they mean and how\u00a0you can calculate,\u00a0precisely how much of a certain fertilizer mixture\u00a0you must apply, in order to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,28],"tags":[56],"class_list":["post-443","post","type-post","status-publish","format-standard","hentry","category-grow-grapes","category-how-to-grow-grapes","tag-how-to-grow-grapes"],"yoast_head":"\n10 : 10: 10<\/span><\/h2>\n
N\u00a0\u00a0:\u00a0\u00a0P\u00a0:\u00a0 K<\/span><\/h2>\n
2:3:4 (27)<\/span><\/h2>\n
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