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Fixation of ammonia from various forms of nitrogen fertilizers and utilization of the fertilizer nitrogen by plants

Shilova, E.I.

Izv. timiryazev. sel'-khoz. Akad, 4, 137-143

1969


Accession: 014481704

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Fixation of the NH4 in (NH4) SO4, aqueous NH3 and CO(NH2)2 (all labelled with 15N) by neutral chernozem, derno-carbonate and bottomland soils varied with soil type but not with N source. In acid derno-podzolic soil, NH4 fixation was greater from aqueous NH3 than from (NH4) SO4.

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