• • • Forage quality as affected by fertilizers based on wastes from poultry farms
The goal of the experiment — evaluation of row mass quality to be used in feed production, affected by new organic-mineral fertilizer (OMF). OMF contained 2.2% of water, 25.6% — ash, 9.0 — рН, 2.46% — N, 4.51% — P2O5, 3.36% — K2O, 7. 18% — CaO, 2.48%— MgO, 97 mg/kg — Cu, 484 mg/kg — Zn, 21 mg/kg — Pb, 7.9 mg/kg — Ni, 0.1 mg/kg — Cd. Application of 3–10 t OMF ha-1 improved productivity by 47–73%, in combination with mineral fertilizers — by 1.9–2.8 times. OMF enrichment by K increased productivity by 18%. Optimal rates of OMF: 3–5 t ha-1 — for winter wheat, 4–7 t ha-1 — for barley, combined later with grasses, 7–10 t ha-1 — subsequently for perennial grasses and spring rapeseed. Crude protein increased in wheat and barley grains by 1.0–2.7%, in green mass of rapeseed and gramineous-legume mixtures — by 0.16–0.46%. Sugar concentration in grass mass raised by 0.05–0.63% while content of starch and fiber reduced. Mineral composition in plant mass improved: contents of Ca — by 0.06–0.09 and 0.06–0.18%, Mg — by 0.06–0.13 and 0.01–0.05%, P — by 0.07–0.14 and 0.01–0.03%, respectively. OMF had no negative effect on nitrate accumulation in plants.
Source: https://kormoproizvodstvo.ru/en/12-2018-2/, p. 18
You can order translation of the full text into English (kormoproiz@mail.ru).
