The dynamics of phosphorus extractability, adsorption, and desorption rates as influenced by phosphorus applications and incubation times

Subjects: “…Phosphatic fertilizers…”
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The insect pollination of selected Erica species by MacGillivray, D. B.(Denis Bruce)

Subjects: “…Fertilization of plants by insects…”
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Seisoensopname en verspreiding van tien voedingselemente by jong appelbome gekweek in sandkulture by Terblanche, J. H.(Johannes Hendrik)

Subjects: “…Apples -- Fertilizers…”
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The influence of granular and liquid top-dressed nitrogen on nitrogen use efficiency (NUE), grain yield and quality parameters of spring wheat (Triticum aestivum L.) by Mbangcolo, Mongezi Morrison

Subjects: “…Liquid fertilizers…”
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Die opbou van 'n tweedeler-dekatron-telapparaat vir gebruik in isotoopnavorsing en 'n voorondersoek na die seisoenopname van kunsmisfosfaat deur appelkoosbome by Smit, Wilhelm Bruckner de Villiers

Subjects: “…Apricot -- Fertilizers…”
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Plant analysis as a method of diagnosing fertilizer requirements of citrus, with special reference to the Valencia variety by Bathurst, A. C

Subjects: “…Fertilizers -- South Africa…”
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Phosphorus fertiliser source and its effect on potato (Solanum tuberosum L.) production by Ndou, Vhuthu

Subjects: “…Soil fertility…”
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Die invloed van stikstofbemisting op die graanopbrings, die samestelling en die kwaliteit van koring (Triticum vulgare) by Vorster, P. W.(Pieter Willem)

Subjects: “…Wheat -- Fertilizers…”
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The evaluation of different embryo markers and their subsequent effect on embryo development, implantation and pregnancy outcome in an in-vitro fertilization program by Kotze, Dirk Jacobus

Subjects: “…In-vitro fertilization…”
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Die invloed van stikstof en swael op die groei, opbrengs en bakkwaliteit van twee lentekoringkultivars by Du Plessis, Jacobus Petrus

Subjects: “…Wheat -- Fertilizers…”
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Bunch quality and fertility of Vitis vinifera L. cv. Prime as affected by gibberellic acid (GA3) and s-abscisic acid (s-ABA). by Masikane, Nonkululeko Nosipho

Subjects: “…Fertility…”
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Modification of lignin to produce soil conditioning materials by Ngiba, Qiniso Theo-Maxwell

Subjects: “…Nitrogen fertilizers…”
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Die invloed van natriumchloried op verskillende wingerdvarieteite en entingskombinasies gekweek in sandkultuur by Van der Westhuizen, J. H. (Johannes Hendrik)

Subjects: “…Grapes -- Fertilizers…”
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Seisoensopname van fosfaat deur die druiwe-cultivar Alphonse Lavallee, gekweek by twee fosfaatvoedingspeile in sandkultuur by Pienaar, P. J. (Pieter Johannes)

Subjects: “…Grapes -- Fertilizers…”
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Nitrogen nutrition of the grape-vine (Vitis vinifera spp) by Conradie, W. J.(Willem Jakobus)

Subjects: “…Nitrogen fertilizers…”
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Die invloed van progesteroon- en prostaglandien F2[alpha]-toedienings tydens verskillende stadiums van die estrussiklus op sinchronisasie van estrus by skape by Schoombee, Cornelius Johan Albertus

Subjects: “…Fertilization (Biology)…”
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