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1971 - 1980

1980

Barnard, RO &  WJ Fölscher 
Die versurende uitwerking van Ureum
 
Burger, AP 
Openingsrede
 
Buys, AJ &  GCH Venter 
Correlations between Bray 1 Bray 2 and Isfei soil-P extractants
 
Du Preez, PC &  HA Ranwell 
Misstofverbruik in Suid-Afrika
 
Easton, JS 
A brief review of the methods currently in use
 
Hyam, GFS 
Communication gaps
 
Kotzé, HA 
Die ekonomie van misstofverbruik by koring en kleingraanproduksie
 
Theron, EP 
The economics of fertiliser usage in cultivated pastures
 
Von Solms, JC
Voorsittersverslag

1977

Allison, JCS 
A method of deriving yield-nutrient response surfaces from simple fertiliser experiments
 
Anderson, SAG 
A critical review of the economic viability of the fertiliser industry in South Africa
 
Botha, JC & BG Russell 
The world’s potash industry as it relates to South Africa
 
Claassens, AS et al 
Bekalking van suurgrond met betrekking tot CaMg-verhouding
 
Coetzee, JGK 
Kalsium in sitrusverhouding
 
Farina, MPW 
Potassium requirements of maize in Natal 
 
Grewar, DM 
Opening Address
 
Hattingh, HS 
Die rol van kunsmis in die ekonomie van kontantgewasse
 
Kotzé, HA 
Boerderybestuur en finansiele beplanning. Die belangrikheid daarvan in die toekomstige stabiliteit van die boerdery nywerheid
 
Le Roux, J 
Potassium reactions in the soil
 
Norton, JG 
Chairman’s Report
 
Parsons, SD & AH Penderis 
Grass Feedlots
 
Parsons, SD 
The role of fertilised pastures in the economics of livestock industry in South Africa
 
Spies, PH 
‘n Bepaling van die ekonomiese status van die Suid-Afrikaanse landbou
 
Van Jaarsveld, AS & HR Steyn 
Die gebruik van die mielierekenaar in die voorspelling van droeland koringopbrengste in die somerreenstreek
 
Van Vuuren, AJ 
Relationship between specific resistance and specific conductance of soils
 
Van Vuuren, AJ 
The molybdenum-blue method
 
Verwey, JF & PC Nel 
Bemesting vog en die proteienproduksie van mielies
 
Wood, RA
Potassium in sugarcane production

1975

Altona, RE 
A review of some research contributions to agriculture by AE&CI Limited
 
Anderson, SAG 
Chairman’s Report 
 
Blommaert, KLJ 
Die rol van stikstof in die plant
 
Bornman, CH 
Calcium and Magnesium in die plant
 
Botha, ADP & JF Ranwell 
Bemestingsreaksies by mielies op ‘n witsandgrondserie met verwysing na_fosforopbouing
 
Buys, AJ 
Samevatting van knelpunte in die kalksituasie
 
Dijkhuis, FJ 
Nitrogen and crops and pastures
 
Farina, MPW 
Does soil testing pay in practice
 
Folscher, WJ 
Die toestand van suurgrond
 
Fouche, PS 
Neutralisering van suurgrond (teoreties)
 
Greeff, PF & JH Terblanche 
Stikstofbemesting van sagtevrugte en tafeldruiwe
 
Grobbelaar, N 
Die rol van stikstof in die plant
 
Grobbelaar, N 
Kalsium en Magnesium in die plant
 
Hyam, GFS & AH Penderis 
Nitrogen fertilisation of pastures and veld
 
Louw, H 
Stikstofomsettings en reaksies in die grond mikro-organismes sowel as die toksiese effekte daarvan
 
Mapham, WR 
Economic aspects of fertiliser use for maize
 
Moberley, PK & JH Meyer 
The amelioration of acid soils in the South_African sugar industry
 
Mohr, PJ 
Optimum soil levels for series of the Avalon and Hutton forms
 
Mrkusic, J 
The South African Phosphate manufacturing industry
 
Pretorius, JG et al 
The lime industry in South Africa
 
Ranwell, JF 
Response of eucaluptus grandis and eucalyptus salinga to fertlisation
 
Ranwell, HA 
Toekomstige ontwikkeling met betrekking tot die stikstofmark in Suid-Afrika
 
Roux, EH 
The South African Phosphate rock industry
 
Scott, JD 
Pasture development in South Africa
 
Skeen, JB 
The present world fertiliser situation and outlook till 1980
 
Sumner, ME 
Soil acidity and its agronomic implications
 
Theron, PF 
Openingsrede
 
Theron, EP 
Potential for radical improvement of the highland sourveld
 
Van Niekerk, PE le R & JF Ranwell 
Proewe met Fosfaat, Kalk en Gips
 
Van Vuuren, PJ 
Kwantitatiewe N-behoeftes van winterkoringkultivars
 
Volschenk, JE 
Stikstofbemesting van koring en groente
 
Von Solms, JC 
The South African Nitrogen industry in relation to the world market
 
Wolf, EVE
Kalsiumsilikaatreaksies

1973

Barnard, RO 
A rotating bench for glasshouse experimentation
 
Botha, ADP 
Toekomstige ontwikkeling ten opsigte van die fosformark
 
Du Toit, R 
Die rol van die kunsmis-nywerheid in die toekomstige ontwikkeling van landbou in Suid-Afrika
 
Du Toit, P 
Toekomstige ontwikkeling van die vleisnywerheid in Suid-Afrika
 
Du Toit, RJ 
Voorsittersverslag 
 
Eksteen, LL 
Die waarde van grondontleding en bemestingsproefresultate by voorligting
 
Farina, MPW & W Mapham 
The relationship between P soil test and maize yield on an avalon medium sandy loam
 
Grant, PM et al 
Soil acidity factors affecting maize yield in Rhodesia
 
Grobbelaar, N 
Die rol van Fosfor in die plant, en Fosfor behoeftes van die belangrikste akkerbougewasse
 
Grobler, JH 
Grondontleding en sinkopname deur mielieplante op verskillende grondtipes
 
Grobler, JH 
Reaksies van toegediende Fosfor draers in gronde
 
Hulme, S 
Toekomstige ontwikkeling van gewasproduksie in die algemeen in Suid-Afrika
 
Joubert, DM 
Toekomstige ontwikkeling van diereproduksie in die algemeen in Suid-Afrika
 
Luyt, L 
Openings en Presidentsrede
 
Möhr, PJ 
Guidelines for fertilisation of maize on soil series of the Avalon and Hutton forms I Phosphorus
 
Möhr, PJ 
Guidelines for fertilisation of maize – II Nitrogen
 
Möhr, PJ 
Guidelines for fertilisation of maize on soil series of the Avalon and Hutton forms III Potassium
 
Roux, EH 
Reserwes, ontginning en verwerking van Fosfate
 
Scholtz, AP 
Die toekomstige ontwikkeling van die mieliebedryf in Suid-Afrika
 
Skeen, JB 
Evaluating the P status of soils
 
Van Jaarsveld, ABS 
Die invloed op reenval op die droeland winterkoring te Bloemfontein
 
Venter, GCH et al 
Short-term effects of surface applied amendments on two acid sandy loam soils in the Eastern Transvaal highveld
 
Verbeek, WA
Toekomstige ontwikkeling van landbou in Suid-Afrika

1979

Barnard, RO & WJ Fölscher 
Loging van elemente in lisimeters onder verskillende gewasse
 
Blamey, FPC 
A simple fortran IV program
 
Bruwer, JJ et al 
Misstoftoediening
 
Fouché, PS 
Kalkbehoefte
 
Joubert, DM 
Natuurwetenskap en natuurwetenskaplike
 
Nienaber, TF & JA Groenewald 
Finansiele aspekte van grondfosforopneming in mielieproduksie
 
Venter, GCH
Evaluation of low order yield responses

1978

Bruwer, JJ 
Landbou-energie strategie uitwissing of oorlewing
 
Bruwer, JJ & EWG Fleming 
The energy budget in the US food system
 
Cawood, WN 
Solar energy and its possible role in agricultural production
 
Craven, GH 
Medal holders function 1977 – Verhoogde opbrengste gister vandag en more
 
Cresswell, CF 
Biological energy processes in crop production
 
Dickinson, EB 
Agricultural Writing
 
Dickinson, EB 
Wheat development in the Orange Free State – some recollections
 
Du Toit, R 
The fertiliser industry – socialised or free enterprise
 
Du Toit, R 
The role of energy in the manufacture of fertiliser
 
Louw, GN 
Biological energy processes in animal production
 
Norton, JG 
Chairmans Report
 
Pretorius, PJVE
Opening Address

1976

Anderson, SAG 
Chairman’s Report
 
Anderson, SAG 
The role of the fertiliser industry
 
Beyers, CP de L 
Interpretasie van sekere grondklassifikasie gegewens in terme van gewasproduksie in die winterreenstreek
 
Brook, CE 
Agricultural production and fertiliser usage in Swaziland
 
Bruwer, CJ 
Grondwerking invloed en orientering
 
De Beer, AG 
Mechanical aspects of cultivation
 
De Swardt, SJ & JR Seretlo 
The attitude of blacks towards science and agriculture
 
Du Bois, FG 
Grondklassifikasie en die praktiese boer
 
Elllis, F 
Beginsels van grondklassifikasie
 
Farina, MPW 
Some agronomic aspects of fertiliser and lime application
 
Hartzenberg, WF 
Opening Address
 
Koch, JT 
Soil physical and chemical aspects of tillage
 
Laker, MC 
Soil fertility and the potential for increased crop production in the South African homelands
 
Landless, BRG 
Zambian agriculture with emphasis on fertiliser usage
 
Mallett, JB 
General aspects of soil cultivation and possible future trends
 
Mohr, PG 
Toedieningsmetodes van kunsmis en landboukalk – agronomiese aspekte
 
Saayman, D 
Gewasproduksie in die lig van grondklassifikasie – wyndruiwe
 
Siemens, JC 
Mechanical aspects of applying fertiliser and lime
 
Thompson, GD 
Introduction and orientation
 
Van Marle, J 
Soil fertility and the potential for animal production in the South African homelands
 
Van Niekerk, BP & BE Eisenberg 
Row widths and planting rates of soybeans in the Eastern Free State
 
Verwey, JF & PC Nel
Invloed van bemesting op stronkverhoudings by mielies

1974

Alexander, GI 
The beef cattle grazing industry in Northern Australia
 
Basson, AJ 
Openingsrede
 
Botha, ADP et al 
The importance of fertilisation when evaluating maize cultivators
 
Conradie, WJ& PJ Gouws 
Bemesting van semi-kortstrooikoring verbou onder besproeing in die Transvaal. Effek op graanopbrengs
 
Craven, GW & EW Laubscher 
Die rol en beweging van Fosfaat in die plant
 
Deist, J 
Reaksies van toegediende fosforkunsmiste in gronde
 
Du Toit, RJ 
Voorsittersverslag
 
Eksteen, LL 
Fosforbemesting van gewasse na aanleiding van navorsingsresultate
 
Farina, MPW & J le Roux 
The relationship between exchangeable Potassium and soil moisture in some important Natal soils
 
Harwin, GO 
Role of nutrition in beef cattle production
 
Hyam, GFS 
Grassland fertilisation and animal production projects – their development
 
Kraft, JJ 
Voggebruik en potensiele droestofproduksie van gewasse in die hoeveldstreek
 
Krumm, HE 
Krumm-Phosphate rock production at Langebaan
 
Luitingh, HC 
Certain aspects of the future development of the beef cattle industry
 
Luyt, L 
Presidentsrede
 
Mengel, K 
The effect of Potassium on the quality of plant products
 
Ranwell, JF et al 
A preliminary study on the response of timber in the Transkei to fertilisation
 
Van Jaarsveld, AS & JJ Human 
Die invloed van bogroeiverwydering op groenvoerproduksie van droeland winterkoring te Bloemfontein
 
Van Jaarsveld, AS & JJ Human
Die invloed van bogroeiverwydering op graanproduksie van droeland winterkoring te Bloemfontein

1972

Basson, AJ 
Openingsrede
 
Beaufils, ER 
A contribution to plant physiological diagnosis
 
Benadé, DV 
Opening en Presidentsrede
 
Botha, ADP et al 
Sinkbenutting deur mielies uit verskillende bronne
 
Bouchet, RJ 
Potential and real evapotranspiration their use and practical application
 
Conroy, TR 
Economic aspects of the fertiliser industry in the Republic of South Africa
 
De Waal, JA 
De Waal-Voorsittersverslag
 
Dekkers et al 
Effect of liming and high phosphate application on plant growth on some Natal Oxisols
 
Farina, MPW et al 
The influence of Sulphur on the yield of a grass clover pasture fertilised different sources of Phosphorus
 
Jurgens, CA 
A look into the future
 
Kieser, PJ and SAG Anderson 
The economics of fertiliser manufacture in South Africa
 
Orchard, ER 
Some thoughts on soil acidity and liming
 
Skeen, JB et al
The maintenance of soil fertility with specific references to Nitrogen Phosphorus Potassium and Lime

1971

Altona, R 
The increase production artificial natural pastures fodder crops fertilisers
 
Beaufils, ER 
Physiological diagnosis guide improving maize production principles rubber trees
 
Dijkhuis, FJ 
Heat unit maize production Part I-Literature review
 
Dijkhuis, FJ 
Heat unit maize production Part II-Experimental results
 
Du Plessis, DF & R du T Burger 
Spesifieke adsorpsie koper deur aantal gronde
 
Joubert, DM 
Intensification animal production SA
 
Kearney, JP 
Presidential Address
 
Lombard, JH 
Management problems affecting utilisation high producing pastures fodder crops
 
Luitingh, HC 
Summary Conclusion
 
Roberts, BR 
The role animal soil fertility
 
Scholtz, O van G 
Chairman’s Report
 
Sinclair, DC 
Opening Address
 
Stielau, WJ
Fertilisers dry matter protein mineral requirements farm animals
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