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Noordwijk, Meine van; Ong, C. K.

doi:10.1023/a:1006245605705

Cited by 70 publications

(3 citation statements)

References 25 publications

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“…In areas with less than 800 mm of mean annual precipitation, trees in agroforestry systems will outcompete crops for limited water resources, unless the deep rooted species can access groundwater (Van Noordwijk and Ong, 1999). Additionally, pearl millet yields along a transect in Senegal show 800 mm of annual precipitation as a threshold below which yields begin to decline (Figure 1B) In the presence of shrubs in this study, however, millet continued to grow and was more productive than millet grown alone, and the mean annual rainfall at the site is 450 mm (Kizito et al, 2006).…”

Section: Resultsmentioning

confidence: 99%

Hydraulic Redistribution by Native Sahelian Shrubs: Bioirrigation to Resist In-Season Drought

Bogie

Bayala

Diédhiou

et al. 2018

Front. Environ. Sci.

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Hydraulic redistribution (HR) by woody vegetation has been proposed as a potential water source for crops in intercropped systems. The native woody shrub, Guiera senegalensis J.F. Gmel, grows in the fields of farmers across the African Sahel and has shown profound yield benefits to associated pearl millet (Pennisetum glaucum) crops, especially in drought years. We tested whether this benefit resulted from the shrubs performing hydraulic redistribution (HR) with pearl millet using some of this HR water. During an experimentally imposed drought, an enriched deuterium (2 H) water tracer applied to 1 m deep roots of G. senegalensis shrubs was detected (2 H ≥ +300‰) in aboveground stems of intercropped millet within 12-96 h of tracer introduction. The only viable path for the 2 H-enriched H 2 O into millet was via HR by the shrubs, which confirmed active HR during the time when growing millet was under severe drought stress. Millet biomass production when intercropped with shrubs was over 900% greater than crops grown without shrubs present. Improvement of growing conditions previously found near shrubs cannot fully account for the benefit to associated millet under extreme drought stress without considering the positive impact of the transfer of HR water. This finding illuminates HR and water transfer as an important mechanism in a successful agroforestry system in a region where food security is a serious issue.

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Section: Resultsmentioning

confidence: 99%

Hydraulic Redistribution by Native Sahelian Shrubs: Bioirrigation to Resist In-Season Drought

Bogie

Bayala

Diédhiou

et al. 2018

Front. Environ. Sci.

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“…Agroforestry systems provide crops, fruits, and wood with a concomitant increase in agroecosystem complexity (Atangana et al, 2014 ) that mimics the structure of native forests (Young, 2017 ). The mimicry hypothesis was elaborated by Ewel ( 1999 ) and extended by van Noordwijk and Ong ( 1999 ), suggesting that AFS are capable of imitating the structure and functions of natural ecosystems, thus benefiting agricultural sustainability. However, our analysis of the soil microbiome reveals that the capacity of AFS to mimic the complex interactions found in mature rainforest is low.…”

Section: Discussionmentioning

confidence: 99%

Microbiome resilience of Amazonian forests: Agroforest divergence to bacteria and secondary forest succession convergence to fungi

Leite

Liu

Cardozo

et al. 2022

Global Change Biology

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“…Simultaneously protecting the environment from hazardous waste generation and disposal is a major concern in today's heavily industrialized world (Dermatas and Meng 2003). Agroforestry systems combine trees or shrubs with cropping, with the aim of developing a more productive and sustainable form of land-use ( Van and Ong 1999).…”

Section: Introductionmentioning

confidence: 99%

Impact of addition of soil amendments and microbial inoculants on nursery growth of Populus deltoides and Toona ciliata

Aggarwal

Goyal

2008

Agroforest Syst

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Present study evaluated growth of Populus deltoides G48 and Toona ciliata over a period of 6 months, in nursery soil amended with 10% fly ash (v/v), 5% distillery waste (v/v), 20% farmyard manure (v/v) and microbial consortium of Pseudomonas striata and Azotobacter sp. @ 30 ml/pot in different combinations leading to 12 different treatments with 16 replicates in completely randomized block design. Biometric parameters such as plant height, collar diameter and total dry biomass were analyzed which indicated that the treatment (T8) comprising of fly ash @ 10% (v/v), farmyard manure @ 20% (v/v) and microbial consortium @ 30 ml/pot promoted growth of P. deltoides. The results indicated that combined addition of fly ash, farm yard manure and microbial inoculants can be used as a good potting mixture for improving survival rates and plant growth in forestry nurseries.

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Untitled

Cited by 70 publications

References 25 publications

Hydraulic Redistribution by Native Sahelian Shrubs: Bioirrigation to Resist In-Season Drought

Hydraulic Redistribution by Native Sahelian Shrubs: Bioirrigation to Resist In-Season Drought

Microbiome resilience of Amazonian forests: Agroforest divergence to bacteria and secondary forest succession convergence to fungi

Impact of addition of soil amendments and microbial inoculants on nursery growth of Populus deltoides and Toona ciliata

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