APAC Vinca webinar 2: Successful finish

Vegetation. Feed your plants well. • Translate 125―175 ppm of nitrogen to gram of NPK. • Do not use too much phosphorus! • Suitable NPK rate: 15-5-15, 15-3-15 15-5-10, 18-5-15, 17-5-17. How to convert ppm of N into mass of fertilizers?  The range of nitrogen recommended in the growing tips is 57―125 ppm.  Let’s start with 125 ppm.  125 ppm means 125 mg should be added into 1 l of water.  There is available fertilizer with NPK rate like 15–5–17 % on the farm.  NPK rate like 15–5–17 contains 15 mg of nitrogen in 100 mg.  Thus, to get 125 mg of nitrogen we need to take: (125 x 100)/15 = 833,3* mg of fertilizer.  The same calculation for 175 mg of nitrogen we need to take: (175 x 100)/15 = 1166,7 mg of fertilizer. * 833,3 (0.5 g) provides EC in the water about 1,2―1,4 mSm /cm

Proper NPK rate

Feed your plants.

! Don’t forget to provide Ca and Mg every 5 th or 6 th watering!

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