Assessment of Teak Production Characteristics Using 1 M Spacing in a Plantation in Nicaragua

Haninec, Peter; Maděra, Petr; Smola, Martin; Habrová, Hana; Šenfeldr, Martin; Úradníček, Luboš; Rajnoch, Milan; Pavliš, Jindrˇ ich; Cafourek, Josef; Novosadová, Kateřina; Šmudla, Radek

doi:10.19182/bft2016.330.a31317

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…The growth in teak wood trees and pandan coconut with the addition of 56 ton/ha of PG organic (T3) could possibly related to the combined effects of the full rate of fertilization and the supplementation of P, Ca and Mg and other nutrients from PG organic (Table 2). The growth of T2 and T3 teak clonal materials had higher values for stand height and DBH compared to values reported for the mean of 1 to 5-year-old teak seedlings, which had an average height of 3.03 m and DBH of 2.74 cm [17]. Based on our projections, the teak seedlings can surpass 6.8 m (Figures 6 and 7) at 24 months compared to a similar study by Nugraha [18], which cites 5 m in the same period.…”

Section: Discussioncontrasting

confidence: 62%

Phosphogypsum Organic, a Byproduct from Rare-Earth Metals Processing, Improves Plant and Soil

2021

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Phosphogypsum organic (PG organic) is a soil conditioner, derived from residues, water leach purification (WLP) and neutralisation underflow (NUF) from rare-earth metals processing in combination with composted organic material. There was no report available with regards to the effectiveness of this byproduct for crops improvement in a sandy soil texture. Therefore, a field trial involving a multi-crop was conducted by the addition of PG organic on a sandy texture soil for 23-month period. Guinea grass or guinea grass intercropping with teak wood trees, corn and kenaf showed an improvement in cumulative fresh yield in plot treated with PG organic either with a half- or full-fertilizer recommended rate for the respective crop as compared to control. The same trend was also observed in teak wood trees in hole planting systems and pandan coconut seedlings in the polybags. Application of PG organic in each season showed a consistently higher cumulative fresh yield or yield for certain crop types due to soil ability to maintain the soil pH buffering capacity (pH 5.8–6.0). Therefore, the application of PG organic as soil conditioner promotes plant growth and development due to the improvement of soil condition by creating suitable ecosystem for nutrients absorption by roots.

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Section: Discussioncontrasting

confidence: 62%

Phosphogypsum Organic, a Byproduct from Rare-Earth Metals Processing, Improves Plant and Soil

2021

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“…Moreover, the value of the final crop in forest plantations is mainly determined by log size and stem quality (Glencross et al, 2012). Some spacings commonly used in T. grandis plantations have been reported by several studies, including 1.37 m × 1.37 m, 1.98 m × 1.98 m, and 2.9 m × 2.9 m (Ola-Adams, 1990); 1.5 m × 1.5 m, 2 m × 2 m, 2.5 m × 2.5 m and 3 m × 3 m (Sibomana et al, 1997); 1 m × 1 m (Haninec et al, 2016); and 2 m × 2 m, 3 m × 3 m, and 4 m × 4 m (Zahabu et al, 2015).…”

Section: Introductionmentioning

confidence: 94%

Growth, Yield, and Stem Quality of Tectona grandis Grown with Different Spacings at Longuza Forest Plantation, Tanzania

Samamba,

Chamshama,

Mwambusi

2024

jtfm

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Spacing is a silvicultural practice that affects the growth of trees in forest plantations. However, the yield depends on growth, which is determined by spacing. In addition, spacing influences the quantity of the final crop available for harvesting, specifically in forest plantations for sawlog production. Spacing is also used as a management practice to control the quality of trees, as dense stands are expected to have trees with good stem quality. However, little has been done to address the effects of spacing on the growth, yield, and stem quality of Tectona grandis until final harvesting age. Teak plantations in Tanzania are grown at a rotation age of 20 years. Thus, this study aimed to assess the effect of spacing on the growth, yield, and stem quality of 24-year-old T. grandis in a Longuza Forest plantation in Muheza, Tanzania. Data were collected from a spacing trial using a randomized complete block design with three treatments: 2 m × 2 m, 3 × 3 m, and 4 m × 4 m, with three replications. The growth and yield parameters assessed were diameter at breast height (dbh) total tree height, and stem quality. Data were analyzed to obtain the basal area, volume, and mean annual increment. Statistical analysis was performed using analysis of variance (ANOVA), and multiple comparisons among treatment means were performed using Tukey's honest significant difference test (p-value = 0.05). The results showed that spacing did not significantly affect growth and yield parameters. The stem quality was significantly different in some treatments. The highest dbh and height growth were observed at 4 m× 4 m spacing. The highest values of basal area, volume, and mean annual increment were observed at a 3 m× 3 m spacing. Stem quality differed significantly between the 2 m× 2 m and 4 m× 4 m spacings. Because teak plantations in Tanzania are aimed at sawlog production, it is recommended to continue practising a spacing of 3 m× 3 m, which will ensure a higher mean annual increment with a higher volume at the stand level. In addition, a spacing of 3 m × 3 m ensured a higher percentage of trees with good stem quality.

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“…The characteristic climate is dry and hot, with annual precipitation of about 1 400 mm and a five to six-month dry season (Erikson et al 1997). In the studied area with a mean altitude of 220 m a.s.l., the most common soil types are Alfisols and Ultisols (INETER 2004;Haninec et al 2016).…”

Section: Site Descriptionmentioning

confidence: 99%

Provenance affects the growth and mortality of teak (Tectona grandis L.f.) plantations cultivated in central Nicaragua

Černý¹,

Haninec²,

Novosadová³

et al. 2023

J. For. Sci.

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Teak has been planted extensively by smallholders in Central America within reforestation programmes and has become one of the most valuable timbers. The five-year growth and mortality of teak cultivated in a plantation in central Nicaragua, representing sites at the low limit of teak ecological valence, were evaluated. From 2006 to 2010, 72 pure teak stands were established, with 48.93 ha in total. For afforestation, planting stock from five provenances was used and planted at 1 m × 1 m spacing to stimulate the height growth and reduce broad crowns formed by self-pruning. In the pure teak stands, 144 permanent sample plots of 0.01 ha in size were established in 2011. From 2011 until 2015, the tree height and stem girth of all individuals in the studied sample plots were measured, and mortality based on the stand density was assessed. Significant differences between the provenances were observed. The highest growth was noted in the Local provenance originated from the studied area, whereas the Semilla provenance from Costa Rica, characterised by the lowest growth ability, was characterized by lower radial increment and mean tree height with high mortality.

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Assessment of Teak Production Characteristics Using 1 M Spacing in a Plantation in Nicaragua

Cited by 4 publications

References 14 publications

Phosphogypsum Organic, a Byproduct from Rare-Earth Metals Processing, Improves Plant and Soil

Phosphogypsum Organic, a Byproduct from Rare-Earth Metals Processing, Improves Plant and Soil

Growth, Yield, and Stem Quality of Tectona grandis Grown with Different Spacings at Longuza Forest Plantation, Tanzania

Provenance affects the growth and mortality of teak (Tectona grandis L.f.) plantations cultivated in central Nicaragua

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