Nitrogen fixation by white clover in pastures grazed by dairy cows: Temporal variation and effects of nitrogen fertilization

Effects of rate of nitrogen (N) fertilizer and stocking rate on production and N₂ fixation by white clover (Trifolium repens L.) grown with perennial ryegrass (Lolium perenne L.) were determined over 5 years in farmlets near Hamilton, New Zealand. Three farmlets carried 3.3 dairy cows ha⁻¹ and recei...

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Veröffentlicht in:	Plant and soil 2001-02, Vol.229 (2), p.177-187
Hauptverfasser:	Ledgard, S.F., Sprosen, M.S., Penno, J.W., Rajendram, G.S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Agronomy. Soil science and plant productions Biological and medical sciences Clover Dairy cattle Dry matter Economic plant physiology Excreta Fertilizers Fundamental and applied biological sciences. Psychology General agronomy. Plant production Grasses Grazing Grazing management Nitrogen Nitrogen fertilization Nitrogen fertilizers Nitrogen fixation Nitrogen, phosphorus, potassium fertilizations Pasture Pastures Plant growth Seasons Soil surfaces Soil temperature Soil-plant relationships. Soil fertility. Fertilization. Amendments Spring Stocking rate Summer Surface temperature Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...) Urea
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