Amaranth — Fertilization
Metadata research draftEvidence limits
⚠️ Status: drafted from the literature survey. Values Unknown until source notes/full text.
Nitrogen
Section titled “Nitrogen”- N strongly affects both vegetable and grain amaranth yield/quality (candidate
10.21273/hortsci.25.9.1078). Rate and timingUnknown; over-N may delay maturity/lodging. N × plant-density interactions relevant.
Phosphorus / potassium
Section titled “Phosphorus / potassium”- NPK × poultry-manure study on three Amaranthus (candidate
10.1155/2014/828750) — P/K ratesUnknownfor grain types.
Organic amendments
Section titled “Organic amendments”- Responsive to compost / manure (candidate
10.1016/s0304-4238(01)00305-3maize-stover compost × N). Organic amendments favored at small scale — ratesUnknown.
Microbial / biofertilizers
Section titled “Microbial / biofertilizers”- Burkholderia growth-promoting bacteria increased grain-amaranth yield in one study (candidate
10.1371/journal.pone.0088094) — noteworthy, corroborationUnknown.
Micronutrients
Section titled “Micronutrients”- Deficiencies/requirements
Unknownfor grain amaranth.
Soil testing
Section titled “Soil testing”- Recommended analyses before sowing
Unknown; the crop tolerates a wide fertility range.
Structured-data impact
Section titled “Structured-data impact”- Feeds
fertility(N/P/K/organic) ofdata/crops/amaranth.yaml.