Die ontwikkeling, opbrengs en stikstofinhoud van clippergars, soos beinvloed deur stikstoftoediening op verskillende groeistadiums by Goosen, Francois Philippus

Subjects: “…Nitrogen fertilizers…”
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Evaluering van verdeelde stikstofbobemesting op kwaliteitseienskappe van koring by Van Lill, Daneel

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Die effek van stikstofbemesting by opeenvolgende groeistadiums op graankwaliteit van die koringkultivar liesbeeck by Barnard, S. A.(Stephen Astley)

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Modification of lignin to produce soil conditioning materials by Ngiba, Qiniso Theo-Maxwell

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Nitrogen nutrition of the grape-vine (Vitis vinifera spp) by Conradie, W. J.(Willem Jakobus)

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The influence of nitrogen fertilization, physiological stage and season on qualitative and quantitative characteristics of Panicum maximum cv Gatton for sheep

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Using adaptive management and modelling to improve nitrogen and water use efficiency in crop production : a case study using annual ryegrass

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Die reaksie van koring op grondvogstremming en stikstofbemesting by Smit, Hugo Amos

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Nitrogen dynamics in sewage sludge and commercial fertilizer enriched soils

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Response of cabbage (Brassica Oleracea Var Capitata) transplants to nitrogen, phosphorus and potassium nutrition

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Die invloed van verdeelde stikstofbobemesting op vegetatiewe groeitempo en reproduktiewe komponente van lentekoring by Mostert, J. A.(Johannes Albertus)

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Invloed van stikstofdraers as bobemesting op vegetatiewe groei, opbrengskomponente en kwaliteit van die koringcultivars Palmiet en SST 66 by Prins, Andre

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Ureum as stikstofbron by die bemesting van vrugtebome by Van Niekerk, P. E. le R.(Pieter Eduard le Roux),1938-

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The influence of seeding rate and nitrogen on the development, yield components and yield of two wheat varieties by Maree, P. C. J.(Peter Charles John)

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Developing nitrogen fertiliser management strategies for wheat (Triticum aestivum) under conservation agriculture practices within the Western Cape by Neethling, Paul Johannes

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Effect of foliar Nitrogen and Sulphur spraying on white wine composition ( Vitis vinifera L.cv. Chenin Blanc and Sauvignon Blanc) by Bruwer, Freda Aléta

Subjects: “…Nitrogen fertilizers -- White wines…”
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Die in vitro-kultivering van Alectra by Trautmann, I. A.(Ilse Antoinette)

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Growth, development and yield responses of sorghum to water deficit stress, nitrogen fertilizer, organic fertilizer, and planting density

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Optimising nitrogen fertilisation of kikuyu and kikuyu-ryegrass pastures by Viljoen, Charne

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Aspects of mineral nutrition affecting fruit quality of ‘Nadorcott’ mandarin by Marais, Helen

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