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Orchard, E. R.; Greenstein, E. J: Greenmanure as a Source of Phosphate for Crops; part 1: Field and Laboratory Studies; part 2: Pot Experiments. Pamflet (Suid-Afrika. Departement van Landbou) 290 = Chemistiry Series 179.

Orchard, E. R.; Greenstein, E. J: Greenmanure as a Source of Phosphate for Crops; part 1: Field and..

25,00 €
McClean, A. P. D: Some forms of streak virus occurring in maize, sugar-cane and wild grasses. Pamflet (Suid-Afrika. Departement van Landbou) 265 = Botany & plant pathology series 12.

McClean, A. P. D: Some forms of streak virus occurring in maize, sugar cane and wild grasses..

25,00 €
Pereira, C A ; L C Olivier: Derde sentrale eierlewedstryd by die Landbouskool en Proefplaas, Glen, O.V.S.. Pamflet (Suid-Afrika. Departement van Landbou) 61.

Pereira, C A ; L C Olivier: Derde sentrale eierlewedstryd by die Landbouskool en Proefplaas, Glen..

25,00 €
Stubbings, W. A. K: Studies on the bionomics and control of the pear-bud mite (Eriophyes piri, Pag). Pamflet (Suid-Afrika. Departement van Landbou) 270 = Fruit research technical series 15.

Stubbings, W. A. K: Studies on the bionomics and control of the pear bud mite (Eriophyes piri..

25,00 €
Du Plessis, C.; Lea, A. F: The Maize Stalk-Borer - Calamistis Fusca (Hmpsn.). Pamflet (Suid-Afrika. Departement van Landbou) 238 = Entomology series 12.

Du Plessis, C.; Lea, A. F: The Maize Stalk Borer Calamistis Fusca (Hmpsn.). Pamflet (Suid Afrika..

25,00 €
Louw, A. J: The germination and longevity of spores of the apple-scab fungus, venturia inaequalis (Cke) wint. Pamflet (Suid-Afrika. Departement van Landbou) 285 = Fruit research technical series 20.

Louw, A. J: The germination and longevity of spores of the apple scab fungus, venturia inaequalis..

25,00 €
Rooyen, von L. A: Die Verhouding tussen uiterlike liggamlike kenmerke en jaarlikse eierproduksie. Pamflet (Suid-Afrika. Departement van Landbou) 110.

Rooyen, von L. A: Die Verhouding tussen uiterlike liggamlike kenmerke en jaarlikse eierproduksie..

25,00 €
Georgala, M. B: A Contribution to the biology of the mite Bryobia Praetiosa Koch (Fam. Tetranychidae). Pamflet (Suid-Afrika. Departement van Landbou) 367 = Fruit research technical series 43.

Georgala, M. B: A Contribution to the biology of the mite Bryobia Praetiosa Koch (Fam..

25,00 €
Morkel, W. A: Spek en ham insout op die plaas. Pamflet (Suid-Afrika. Departement van Landbou) 25.

Morkel, W. A: Spek en ham insout op die plaas. Pamflet (Suid-Afrika. Departement van Landbou) 25.

25,00 €
Lawrence, R. F: A Conspectus of South African Spiders. Pamflet (Suid-Afrika. Departement van Landbou) 369.

Lawrence, R. F: A Conspectus of South African Spiders. Pamflet (Suid Afrika. Departement van..

25,00 €
Copeman, P. R. v. d. R. et al: A study of some chemical changes occurring during the dehydration of vegetables. Pamflet (Suid-Afrika. Departement van Landbou) 273 = Chemistiry Series 173.

Copeman, P. R. v. d. R. et al: A study of some chemical changes occurring during the dehydration of..

25,00 €
Dreyer, D. J.; Putterill, V. A: Kasverpakking van pere vir uitvoer. Pamflet (Suid-Afrika. Departement van Landbou) 124.

Dreyer, D. J.; Putterill, V. A: Kasverpakking van pere vir uitvoer. Pamflet (Suid Afrika..

25,00 €
Bakalor, S. ; Kock, A. A. de: Composition of milk offered for sale in Pretoria. Pamflet (Suid-Afrika. Departement van Landbou) 272 = Agricultural Research Series 9.

Bakalor, S. ; Kock, A. A. de: Composition of milk offered for sale in Pretoria. Pamflet (Suid..

25,00 €
Scott, J. D: A contribution to the study of the problems of the Drakensberg Conservation Area. Pamflet (Suid-Afrika. Departement van Landbou) 324 = Natal Agricultural Research Institute series 2.

Scott, J. D: A contribution to the study of the problems of the Drakensberg Conservation Area..

25,00 €
Putterill, V. A.; Dreyer, D. J: Peer-verpakkingsproewe : vorderingsverslae nos. 2, 3 en 4 en 'n opsomming van resultate verkry in verband met pere verpak in kaste. Pamflet (Suid-Afrika. Departement van Landbou) 160 = Plantenywerheid reeks 8.

Putterill, V. A.; Dreyer, D. J: Peer verpakkingsproewe : vorderingsverslae nos. 2, 3 en 4 en 'n..

25,00 €
Lundie, A. E: Koninginby-teelt. Pamflet (Suid-Afrika. Departement van Landbou) 76.

Lundie, A. E: Koninginby-teelt. Pamflet (Suid-Afrika. Departement van Landbou) 76.

25,00 €
De Villiers, G. D. B.; Persse, J. A: An Investigation into the Precipitation Intensity at Stellenbosch and Groot Drakenstein. Pamflet (Suid-Afrika. Departement van Landbou) 311 = Fruit Research Technical Series 25.

De Villiers, G. D. B.; Persse, J. A: An Investigation into the Precipitation Intensity at..

25,00 €
Louw, A. J: Studies of the Influence of Environmental Factors on the Overwintering and Epiphytology of Apple Scab [Ventura Inaequalis (Cke.) Wint.] in the Winter-Rainfall Area of the Cape Province. Pamflet (Suid-Afrika. Departement van Landbou) 310 = Frui

Louw, A. J: Studies of the Influence of Environmental Factors on the Overwintering and Epiphytology..

25,00 €
Davis, D. H. S.; Thomas, A. D: Gerbille Control, An aid to crop protection and plague prevention. Pamflet (Suid-Afrika. Departement van Landbou) 233 = Vermin Control Series 1.

Davis, D. H. S.; Thomas, A. D: Gerbille Control, An aid to crop protection and plague prevention..

25,00 €
Strasheim, A: A few applications of spectrochemical analysis in fruit research. Pamflet (Suid-Afrika. Departement van Landbou) 295 = Fruit research series 18.

Strasheim, A: A few applications of spectrochemical analysis in fruit research. Pamflet (Suid..

25,00 €
Louw, H. A: Microbiological analysis of a Western Cape province grain soil under various crop rotation. Pamflet (Suid-Afrika. Departement van Landbou) 378 = Stellenbosch-Elsenburg Scientic Series 54.

Louw, H. A: Microbiological analysis of a Western Cape province grain soil under various crop..

25,00 €
Chippindall, L. K. A: The common names of grasses in South Africa = Gewone name van grassoorte in Suid-Afrika. Pamflet (Suid-Afrika. Departement van Landbou) 265 = Botany & plant pathology series 7.

Chippindall, L. K. A: The common names of grasses in South Africa = Gewone name van grassoorte in..

25,00 €
Oberholzer, P. C. J.; Mathews, I.; Stiemie, S. F: The decline of grapefruit trees in South Africa. A preliminary report on so-called "stem pitting.". Pamflet (Suid-Afrika. Departement van Landbou) 297.

Oberholzer, P. C. J.; Mathews, I.; Stiemie, S. F: The decline of grapefruit trees in South Africa..

25,00 €
Louw, A. J: Spraying experiments against apple scab [Venturia inaequalis (Cke.) Wint.] in the winter-rainfall area of the Cape Province. Pamflet (Suid-Afrika. Departement van Landbou) 315 = Fruit research science series 28.

Louw, A. J: Spraying experiments against apple scab [Venturia inaequalis (Cke.) Wint.] in the..

25,00 €
Tooke, F. G. C: Beetles injurious to timber in South Africa : a study of their biology, prevention and control. Pamflet (Suid-Afrika. Departement van Landbou) 293 = Entomology series 28.

Tooke, F. G. C: Beetles injurious to timber in South Africa : a study of their biology, prevention..

25,00 €
Pienaar, W. J.; Lotz, E. v. d. S.; Piaget, J. E. H: A few observations in connection with the flame photometric determination of potassium, calcium and sodium in plant material with the aid of the Beckman flame spectrophotometer. Pamflet (Suid-Afrika. Dep

Pienaar, W. J.; Lotz, E. v. d. S.; Piaget, J. E. H: A few observations in connection with the flame..

25,00 €
Prinsloo, A. L: An economic survey of citrus growing in the Union. Pamflet (Suid-Afrika. Departement van Landbou) 221 = Economic Series 30.

Prinsloo, A. L: An economic survey of citrus growing in the Union. Pamflet (Suid Afrika..

25,00 €
Neethling, J. C: A comparative study of wheat-farming in four sub-areas in the winter-rainfall crop districts, crop year 1938-1939. Pamflet (Suid-Afrika. Departement van Landbou) 227 = Economical Series 31.

Neethling, J. C: A comparative study of wheat farming in four sub areas in the winter rainfall crop..

25,00 €
Haylett, D. G.; Theron, J. J: Studies on the fertilisation of a grass ley. Pamflet (Suid-Afrika. Departement van Landbou) 351 = Research Institute Series 26.

Haylett, D. G.; Theron, J. J: Studies on the fertilisation of a grass ley. Pamflet (Suid Afrika..

25,00 €
Villiers, G. D. B. de: A ten-year summary of the climatological data recorded at the Agro-Meteorological Observatory, Groot Drakenstein, 1941 to 1950.. Pamflet (Suid-Afrika. Departement van Landbou) 349 = Fruit Research Technical Series 36.

Villiers, G. D. B. de: A ten year summary of the climatological data recorded at the Agro..

25,00 €
Lochner, E. H. W: The control of the red spider (Tetranychus bimaculatus Harvey), a description of the red spider and of experiments carried out with certain of the newer insecticidal materials as miticides and ovicides under controlled temperature and hu

Lochner, E. H. W: The control of the red spider (Tetranychus bimaculatus Harvey), a description of..

25,00 €
Lea, A: Studies on the behaviour of adult brown locusts in the Karoo. Pamflet (Suid-Afrika. Departement van Landbou) 344 = Locust research series 15.

Lea, A: Studies on the behaviour of adult brown locusts in the Karoo. Pamflet (Suid Afrika..

25,00 €
Wager, Vincent A: The black spot disease of citrus in South Africa. Pamflet (Suid-Afrika. Departement van Landbou) 303 = Botany and plant pathology series 14.

Wager, Vincent A: The black spot disease of citrus in South Africa. Pamflet (Suid Afrika..

25,00 €
Du Plessis, S. J.; J A Truter: Brown spot disease of lupins caused by pleiochaeta setosa. Pamflet (Suid-Afrika. Departement van Landbou) 347 = Stellenbosch-Elsenburg series 52.

Du Plessis, S. J.; J A Truter: Brown spot disease of lupins caused by pleiochaeta setosa. Pamflet..

25,00 €
Doidge, E. M. et al: A revised list of plant diseases occurring in South Africa. Pamflet (Suid-Afrika. Departement van Landbou) 346 = Botany and Plant Pathology Series 16.

Doidge, E. M. et al: A revised list of plant diseases occurring in South Africa. Pamflet (Suid..

25,00 €
Gorter, G. J. M. A: Studies on the spread and control of the streak disease of maize, Pamflet (Suid-Afrika. Departement van Landbou) 341 = Botany & plant pathology series 18.

Gorter, G. J. M. A: Studies on the spread and control of the streak disease of maize, Pamflet (Suid..

25,00 €
Theron , P. P. A: Studies on the Provision of Hosts for the Mass-Rearing of Codling Moth Parasites. Pamflet (Suid-Afrika. Departement van Landbou) 262 = Fruit research technical Series 4.

Theron , P. P. A: Studies on the Provision of Hosts for the Mass Rearing of Codling Moth Parasites..

25,00 €
Lansdell, K. A: Onkruide van Suid-Afrika. Onkruid no. 21, Die Agterplaas-knooponkruid (Polygonum aviculture, L.) Famielie Polygonaceae. Pamflet (Suid-Afrika. Departement van Landbou) 21.

Lansdell, K. A: Onkruide van Suid Afrika. Onkruid no. 21, Die Agterplaas knooponkruid (Polygonum..

25,00 €
Bosman, A M; Bonsma, F. N: Noodsaaklike verbeterings op die grootbeesplaas : 'n oorsig van die fasiliteite vereis vir die behandeling van lewende hawe. Pamflet (Suid-Afrika. Departement van Landbou) 178 = Uitbreidingsreeks 16.

Bosman, A M; Bonsma, F. N: Noodsaaklike verbeterings op die grootbeesplaas : 'n oorsig van die..

25,00 €
Marloth, Raimund H: Sweet orange as a rootstock for citrus. Pamflet (Suid-Afrika. Departement van Landbou) 302 = Horticultural series 15.

Marloth, Raimund H: Sweet orange as a rootstock for citrus. Pamflet (Suid Afrika. Departement van..

25,00 €
Vorster, J. A: The engineering problems in soil erosion control. Pamflet (Suid-Afrika. Departement van Landbou) 259 = Agricultural research institute 6.

Vorster, J. A: The engineering problems in soil erosion control. Pamflet (Suid Afrika. Departement..

25,00 €
Gericke, A. M: The nutrition of poultry. Pamflet (Suid-Afrika. Departement van Landbou) 260 = Agricultural research institute 7.

Gericke, A. M: The nutrition of poultry. Pamflet (Suid Afrika. Departement van Landbou) 260 =..

25,00 €
Munro, H K; F A Fouche: A list of the scale insects and mealy bugs (Coccidae) and their host-plants in South Africa. Pamflet (Suid-Afrika. Departement van Landbou) 158.

Munro, H K; F A Fouche: A list of the scale insects and mealy bugs (Coccidae) and their host plants..

25,00 €
Pentz, J. A: Suid-Afrikaanse weigrassoorte tesame met 'n opname van die ondersoekwerk op die weiveldproefstasie Prinshof. Pamflet (Suid-Afrika. Departement van Landbou) 148 = Plantkunde-reeks 4.

Pentz, J. A: Suid Afrikaanse weigrassoorte tesame met 'n opname van die ondersoekwerk op die..

25,00 €
Putterill, V. A: Ondersoekswerk in verband met die bederf van sitrusvrugte. Voorsettingsverslag no. 3, Seisoen 1934. Pamflet (Suid-Afrika. Departement van Landbou) 149.

Putterill, V. A: Ondersoekswerk in verband met die bederf van sitrusvrugte. Voorsettingsverslag no..

25,00 €
Putterill, V. A.; Dreyer, D. J: Ondersoek in verband met die bederf van sitrusvrugte, Voorsettingsverslag 4, Seisoen 1935. Pamflet (Suid-Afrika. Departement van Landbou) 167 = plantenywerheid reeks 11.

Putterill, V. A.; Dreyer, D. J: Ondersoek in verband met die bederf van sitrusvrugte..

25,00 €
Leemann, A C: Die Uitroeiing van gifblaar (Dichapetalum cymosum). Pamflet (Suid-Afrika. Departement van Landbou) 153.

Leemann, A C: Die Uitroeiing van gifblaar (Dichapetalum cymosum). Pamflet (Suid Afrika. Departement..

25,00 €
Putterill, V. A: Ondersoek in verband met die bederf van sitrusvrugte. Voorsettingsverslag no. 2, Seisoen 1933. Pamflet (Suid-Afrika. Departement van Landbou) 131.

Putterill, V. A: Ondersoek in verband met die bederf van sitrusvrugte. Voorsettingsverslag no. 2..

25,00 €
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