Multiple deficiencies on one Soil Health Card, integrated correction plan, sequencing inputs.
How do I correct a combined low organic carbon, low zinc and low sulphur Soil Health Card?
NNandkishore Tiwari6mo ago · 162 views
3 Answers
🌾Farmer.in Krishi TeamExpert ✓6mo ago
When the card flags low organic carbon plus low zinc and low sulphur together, treat it as one integrated plan rather than separate quick fixes. Build organic carbon as the base by adding well rotted FYM or compost, returning residue, and using green manure, because better organic matter also improves availability of zinc, sulphur, and everything else over time. Correct sulphur at sowing through gypsum, bentonite sulphur, or SSP, and correct zinc with a soil dose of zinc sulphate that will carry over 2 to 3 crops, keeping zinc separate from phosphate placement. Keep your NPK balanced and splitting nitrogen. Re-test through the Soil Health Card after a season or two to see the trend. Set the exact doses from your card and local KVK and do not over apply any one input.
RRameshwar Dubey5mo ago
I had the same three lows and tackling the organic carbon first was the smart move, because once the FYM and green manure went in, the zinc and sulphur I added also seemed to work better. The organic matter is the foundation that makes the micronutrient corrections stick.
SShyam Sunder Tripathi5mo ago
Using SSP as your phosphorus source is a neat trick here, because it brings sulphur along with the phosphorus and covers two needs in one. I did that plus a one time zinc sulphate soil dose, kept the zinc away from the SSP placement, and saved myself a separate sulphur application.