Fertilising Commercial Forest Species in Southern Africa: Research Progress and Problems (Part 1)

Herbert, M. A.; Schönau, A. P.G.

doi:10.1080/00382167.1989.9630507

Cited by 24 publications

(16 citation statements)

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“…This supported the finding of Turvey (1996) at a single site in South Kalimantan, on similar soils to those in this study, that P was the sole nutrient to which A. mangium responded. In other environments, Herbert and Schӧnau (1989), in synthesising results from a range of nutrient experiments in South Africa, also found that acacias were predominantly responsive to P. These authors also found some evidence of a response to K, but the effect was not consistent, and difficult to elucidate. It is likely that K may become more of a limitation in later rotations as it is removed in harvested crops.…”

Section: Discussionmentioning

confidence: 79%

Nutrient management of contrasting Acacia mangium genotypes and weed management strategies in South Sumatra, Indonesia

Mendham

Hardiyanto

Wicaksono

et al. 2017

Australian Forestry

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Tropical plantations are an important source of forest products both to meet the growing demand for wood, and to facilitate the transition from native forests to more sustainably produced forest resources. Management of these plantations for optimal productivity and resource-use efficiency is vitally important, and nutrient management is a critical component of sustainable plantation production. In this study, we explored the response of Acacia mangium plantations in South Sumatra, Indonesia, to fertiliser and their requirement for fertiliser, focusing on phosphorus (P) at establishment. Almost all plantations across a series of 11 sites were highly responsive to P fertiliser, with nine of the 11 sites having more than double the productivity in P-fertilised treatments at age 1 year compared with control treatments. However, the quantity of P required for 90% of maximum growth was generally low by age 2 or 3 years, and 10 kg P ha -1 at establishment was sufficient to ensure that at least 90% of maximum growth was captured across all the experimental sites. At a 12 th site, we explored the interactions between genotype and weed control, and found that both effects were additive in the response of the plantations to P, and thus there was no substitutability between management types: weed control, genotype and P needed to be managed in combination to achieve maximum productivity. ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 79%

Nutrient management of contrasting Acacia mangium genotypes and weed management strategies in South Sumatra, Indonesia

Mendham

Hardiyanto

Wicaksono

et al. 2017

Australian Forestry

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“…In the second trial series, the increased volume production at 9 years due to fertiliser application was 30 m 3 ha − 1 (18%) and 17 m 3 ha − 1 (10%) on S2R and S3R sites respectively. Likewise, Herbert and Schönau (1989) reported a 30 and 58% productivity improvement of P. patula at the age 6 and 8 years, while Donald and Glen (1974) reported an improvement of 12. 9 and 11.5% on Pinus radiata D.Don at age of 8 and 10 years after fertiliser application.…”

Section: Discussionmentioning

confidence: 99%

“…Many tree species have been genetically improved to increase productivity, but this does not occur on soils deficient in P and K (Titshall et al 2013) or Ca (Herbert and Schönau 1990). Site-specific, remedial fertiliser applications have been reported to overcome the effects of mineral nutrient deficiencies in soils, leading to yield improvement (Herbert and Schönau 1989;Herbert and Schö-nau 1990;Titshall et al 2013). Conversely, Wall (2012) found that application of lime (calcium hydroxide) did not increase productivity when compared with retained slash.…”

Section: Introductionmentioning

confidence: 99%

The importance of harvest residue and fertiliser on productivity of Pinus patula across various sites in their first, second and third rotations, at Usutu Swaziland

Mavimbela

Crous

Morris³

et al. 2018

N.Z. j. of For. Sci.

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Background: Concern is growing about the future of forestry productivity due to intensive nutrient removal, as a result of different harvesting operations. This study aimed to determine the effects on forest productivity when using different slash-retention scenarios with the recommended amounts of mineral fertiliser in Usutu forest. Usutu is a plantation forest that grows mostly softwood where the predominant species is Pinus patula Schiede ex Schltdl. & Cham.Methods: The first trial series (F) comprised of one trial located in each of five forest blocks. It was established in 1971 and compared the effects of various site preparation scenarios (slash removal, slash retention and cultivation) on the early growth of Pinus patula for adjacent first (F1R) and second rotation (F2R) sites (i.e. grassveld and clearfelled first-rotation sites). The second (S) trial series was re-established in April 1991 on exactly the same position as the first trial series, and involved second (S2R) and third rotation (S3R) sites. Three main treatments, standard pitting through harvest residue (control); manual pitting after removal of harvest residue and forest floor (cleared); and manual pitting and broadcast application of dolomitic lime (2 t ha

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“…O N acelera o ritmo inicial de crescimento da floresta, mas diferenças entre os tratamentos não são mais significativas após 30 meses de idade GONÇALVES et al, 1997GONÇALVES et al, , 2008bSCHÖNAU, 1989). Isso porque o eucalipto possui alta demanda de N na fase inicial de crescimento (NOBLE; HERBERT, 1991), pois a maior parte do acúmulo de biomassa foliar ocorre nessa fase (BARROS et al, , 2000REIS et al, 1987REIS et al, , 1990.…”

Section: Resposta à Fertilização Nitrogenadaunclassified

“…Apesar do N ser o nutriente requerido em maiores quantidades pelas plantas superiores, diversos pesquisadores têm observado que raramente as plantações extensivas de florestas respondem à fertilização nitrogenada, sob condições de clima tropical e subtropical (GONÇALVES et al, 1997;SCHÖNAU, 1989;BARROS et al, 1990). Isso ocorre, provavelmente, porque dentre as principais fontes de N, a mineralização do N orgânico (em média 40 kg ha -1 ano -1 ) ao longo do ciclo da cultura, seja a fonte principal e suficiente para atender a demanda das árvores (GONÇALVES et al, 2001(GONÇALVES et al, ,2008a, uma vez que a demanda média anual de N em florestas de eucaliptos no estado de São Paulo e Minas Gerais varia de 20 a 50 kg ha…”

Section: Introductionunclassified

Resposta à fertilização nitrogenada e estoque de nitrogênio biodisponível em solos usados para plantações de Eucalyptus

Pulito¹

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Fertilising Commercial Forest Species in Southern Africa: Research Progress and Problems (Part 1)

Cited by 24 publications

References 0 publications

Nutrient management of contrasting Acacia mangium genotypes and weed management strategies in South Sumatra, Indonesia

Nutrient management of contrasting Acacia mangium genotypes and weed management strategies in South Sumatra, Indonesia

The importance of harvest residue and fertiliser on productivity of Pinus patula across various sites in their first, second and third rotations, at Usutu Swaziland

Resposta à fertilização nitrogenada e estoque de nitrogênio biodisponível em solos usados para plantações de Eucalyptus

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