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Wplyw wieloskladnikowego nawozu Agravita w warunkach zroznicowanych dawek azotu na plon i niektore cechy jakosci bulw ziemniaka

100%

Trawczynski C., Grzeskiewicz H.

Zeszyty Problemowe Postępów Nauk Rolniczych

2006

tom 511

nr 1

149-155

Field experiment was carried out in the years 1999-2001 on light soil upon the influence of Agravita multicomponent fertilizer, NPK 5-7.9-10.8 (sulphate form of potassium) on the potato yield and quality. The table potatoes Bila cv. was cultivated on the manure (25 t·ha⁻¹) and N doses: 0, 40, 80, 120 kg·ha⁻¹. The dose of 120 kg N·ha⁻¹ was divided into two parts: 80 kg before planting and 40 kg before emergence. The Agravita fertilizer was compared with single fertilizers (ammonium nitrate - 34% N, triple superphosphate - 20% P and potassium salt - 47.3% K). The effects of Agravita fertilizer and single fertilizers on the yield of tubers were similar. The content of starch, vitamin C and dry matter in tubers were significantly higher after applying Agravita as compared to single fertilizers. Kind of the fertilizer in experiment did not differentiate the flesh blackening after cooking nor the contents of nitrogen, phosphorus, potassium and magnesium in dry matter of tubers. Significantly highest yield of tubers was obtained at applied dose 80 kg N·ha⁻¹. The contents of starch, nitrate, dry matter and total nitrogen were significantly differentiated depending on the level of nitrogen fertilization. The dose of 120 kg N·ha⁻¹ had negative influence on flesh blackening after cooking of tubers.

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1 Zeszyty Problemowe Postępów Nauk Rolniczych

1 Grzeskiewicz H.

1 Trawczynski C.

1 2006

Wyniki wyszukiwania

Wplyw wieloskladnikowego nawozu Agravita w warunkach zroznicowanych dawek azotu na plon i niektore cechy jakosci bulw ziemniaka