2019
DOI: 10.17138/tgft(7)295-302
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Abstract: Keynote paper presented at the International Leucaena Conference, 1‒3 November 2018, Brisbane, Queensland, Australia.The introduction of leucaena (Leucaena leucocephala), apart from increasing animal production, improves soil fertility through biological nitrogen (N) fixation and its deep-rooted system. There is limited information on carbon and N dynamics in hedgerow silvopastoral systems, particularly in the subsoil profile. The concentrations and vertical distribution of organic carbon (OC) and total N , an… Show more

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“…This is required to promote vigorous leucaena growth. Native rhizobia in the soil in northeast Argentina are unlikely to form effective nodules with leucaena and will fix little, if any, N (Radrizzani et al 2019). However, no commercial leucaena inoculant is readily available and only IMYZA-INTA supplies specific rhizobial strains to leucaena growers.…”
Section: Future Research and Development Prioritiesmentioning
confidence: 99%
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“…This is required to promote vigorous leucaena growth. Native rhizobia in the soil in northeast Argentina are unlikely to form effective nodules with leucaena and will fix little, if any, N (Radrizzani et al 2019). However, no commercial leucaena inoculant is readily available and only IMYZA-INTA supplies specific rhizobial strains to leucaena growers.…”
Section: Future Research and Development Prioritiesmentioning
confidence: 99%
“…This is needed as in many areas of northern Argentina growth is constrained by cold temperatures and frost (Radrizzani unpublished data), which occur at a time when leucaena is most needed to supply protein to ruminant diets. There are promising cold-tolerant accessions in the INTA collection which could increase forage availability in winter (Radrizzani et al 2019 (Radrizzani et al 2019). Farmers are uncertain if their animals are suffering from toxicity since animals may still be performing better in systems with leucaena than in those without it.…”
Section: Future Research and Development Prioritiesmentioning
confidence: 99%