Effect of increasing distance fromAcacia nilotica trees on wheat yield

Khan, Ghazi; Ehrenreich, John H.

doi:10.1007/bf00705704

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…The reduction of crop yield should depend on tree size, but these data are available only for established trees (Reynolds et al 2007). The response with distance in this study is consistent with other studies examining the impact of distance from trees on crop yield (Akbar et al 1990;Khybri et al 1992;Puri and Bangarwa 1992;Khan and Ehrenreich 1994;Singh et al 1998). The crop yield for the TBI system with 100 m tree row spacing, not including the land reduction for the trees, is 1.4% less than arable production without trees.…”

Section: Data and Model Applicationsupporting

confidence: 88%

Tree‐Based Intercropping in Southern Ontario, Canada

Toor¹,

Smith²,

Whalen³

et al. 2012

Canadian J Agri Economics

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Tree-based intercropping (TBI) integrates tree production within annual grain cropping. The system is widely used in tropical regions, but is not common in temperate regions. This study evaluates the annualized return from TBI systems in southern Ontario, Canada against annual grain crop production. The TBI systems include hybrid poplar, Norway spruce, and red oak. The annualized return for all TBI systems is less than for annual cropping using the base prices; however, when tree prices are high and grain prices low the hybrid poplar TBI system has a higher return than annual cropping. Grants for planting trees, technologies to reduce the cost of establishing and maintaining trees, and improving the returns from tree production will be required for producers in temperate regions to adopt TBI systems.Un système de cultures intercalaires (SCI) intègre la production d'arbres dans la culture annuelle de céréales. Ce système est largement utilisé dans les régions tropicales, mais peu courant dans les régions tempérées. La présenteétudeévalue le rendement annualisé des SCI dans le sud de l'Ontario, au Canada, par rapportà celui de la production annuelle de céréales. Les SCI intègrent le peuplier hybride, l'épinette de Norvège et le chêne rouge. Le rendement annualisé des SCI est inférieurà celui des cultures annuelles si l'on utilise les prix de référence. Toutefois, lorsque les prix des arbres sontélevés et que les prix des céréales sont faibles, le SCI qui intègre le peuplier hybride obtient un rendement supérieurà celui des cultures annuelles. Pour que les agriculteurs des régions tempérées adoptent les SCI, il faudra offrir des subventionsà la plantation d'arbres, offrir des technologies qui permettront de réduire les coûts de plantation et d'entretien des arbres et améliorer les rendements/revenus de la production d'arbres.

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Section: Data and Model Applicationsupporting

confidence: 88%

Tree‐Based Intercropping in Southern Ontario, Canada

Toor¹,

Smith²,

Whalen³

et al. 2012

Canadian J Agri Economics

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“…The yield attributes are mainly depends on the crop growth and significantly affected by tree species and as they affect wheat growth. Similar findings have been reported by various scientists (Jiang et al, 1994;Khan and Ehrenreich, 1994;Lakshmamma and Subba Rao, 1996;Tripathi et al, 2006). Puri et al (2001) also found the number of effective tillers and seeds per spike in wheat to be influenced significantly in agrisilvicultural system with significant varietal differences.…”

Section: Yield Attributessupporting

confidence: 80%

Impact of planting density on wheat crop grown under different tree species in tarai agroforestry system of central himalaya, India

Satyawali

Chaturvedi

Bisht

et al. 2018

JANS

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Abstract:A field trial based Agroforestry system was established at Pantnagar during Rabi season 2012-13 for predicting the effect of spacing on growth and yield of wheat (Triticum aestivum L.) under Eucalyptus camaldulensis and Melia azedarach. The experiment was carried out in split-plot design consisting of two tree species in main plot, viz, Eucalyptus camaldulensis and Melia azedarch and four spacing treatments in sub-plot viz, 3.0m×1.0m, 3.0m×1.5m, 3.0m×2.0m and 3.0m×2.5m with three replications. The wheat crop variety"UP-2338" was sown on December 06, 2012 and harvested on April 27, 2013. Among the tree species, the maximum (15.1 q /ha) and significantly higher grain yield with 21.8% increment was recorded under Melia as compare to Eucalyptus. Whereas, among the different spacings, the wheat growth in terms of dry biomass at 120 DAS (495.4/m 2 ), yield attributes and yield in terms of grain (16.0 q/ha), straw (29.4 q/ha) and biological yield (45.4 q/ha) under Melia was significantly higher at 3 × 2.5 m spacing as compared to other planting density. The correlation coefficient (r) studies exhibited that wheat growth and yield attributing characteristics shows significantly (p<0.05) high degree (r=0.75 to 1) positive correlation with each other. The investigation was done to find out the proper planting density for intercropping of wheat with tree species without comprising the wheat growth and enhancing its sustainability.

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“…Sharma et al (2000) also reported that close spacing increased amount of leaf litter, which inhibited the crop growth. Corroborative results were reported by Khan and Ehrenerich (1994). Additional supply of inorganic nutrients reduces tree-crop competition for nutrients resulting increase in crop growth.…”

Section: Wheat Growthmentioning

confidence: 68%

Performance of wheat (Triticum aestivum L.) crop under different spacings of trees and fertility levels

Sarvade¹,

Mishra²,

Kaushal³

et al. 2014

Afr. J. Agric. Res.

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A field experiment was laid out at Pantnagar (Uttarakhand, India) in Mollisols during rabi season (2009-10) to study effect of spacing and fertility levels on growth and yield of wheat (Triticum aestivum L.) under different tree species in Terai region. The experiment was conducted in split-split plot design comprising four tree species in main plots, four spacing treatments in sub plots and four fertility levels in sub-sub plot with three replications. The wheat crop var. PBW-502 was sown on November 29, 2009 and harvested on April 21, 2010. Significant higher grain yield was recorded under Poplar (44.60 qha -1 ); however, it was statistically at par with Melia (42.60 qha -1 ) interface at 180-60-40 kg NPK ha -1 fertility level. At 3 × 2. 5 m, the wheat growth, yield attributes and yield (grain, straw and biological yield) under Poplar was significantly higher than closer spacing. Application of 180-60-40 kg NPK ha -1 had significant effect on crop growth and grain yield than other levels of fertility. The correlation coefficient (r) studies exhibited that wheat growth and yield attributing characteristics are significantly (p<0.05) and positively correlated with each other.

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Effect of increasing distance fromAcacia nilotica trees on wheat yield

Cited by 7 publications

References 6 publications

Tree‐Based Intercropping in Southern Ontario, Canada

Tree‐Based Intercropping in Southern Ontario, Canada

Impact of planting density on wheat crop grown under different tree species in tarai agroforestry system of central himalaya, India

Performance of wheat (Triticum aestivum L.) crop under different spacings of trees and fertility levels

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