Abstract
In the northeast of Argentina, there are more than 100,000 ha of silvopastoral systems, where trees, forages and livestock are combined with the goal to diversify income, reduce financial risk, obtain more profit and enhance environmental benefit (Cubbage et al. 2012). The rapid adoption of these production systems by farmers has generated high demand for information on shade-tolerant forage grass and legume species. Axonopus catarinensis is a native grass from Itajai Valley (Brazil), that was introduced to the northeast of Argentina 10 years ago, and Arachis pintoi is a subtropical legume (also native to Brazil) adapted to acid soils and tolerant of medium levels of shade (Fisher and Cruz 1994). Visual observation of these species in the field indicated high yields and acceptable tolerance to shade. A trial was subsequently carried out with the aim to quantify dry matter yield and nutritive quality of the species under different levels of shade for silvopastoral use.
Highlights
In the northeast of Argentina, there are more than 100,000 ha of silvopastoral systems, where trees, forages and livestock are combined with the goal to diversify income, reduce financial risk, obtain more profit and enhance environmental benefit (Cubbage et al 2012)
There was an effect of shade (P
The increased Dry matter (DM) production in A. catarinensis with 38% shade was due to the high rate of growth achieved from the beginning of spring until the start of drought in summer, when plant available soil water did not limit growth
Summary
In the northeast of Argentina, there are more than 100,000 ha of silvopastoral systems, where trees, forages and livestock are combined with the goal to diversify income, reduce financial risk, obtain more profit and enhance environmental benefit (Cubbage et al 2012). A trial was subsequently carried out with the aim to quantify dry matter yield and nutritive quality of the species under different levels of shade for silvopastoral use. Email: a.pachas@uq.edu.au domized complete block design with 4 shade treatments (100, 62, 47 and 29% ambient light = 0, 38, 53 and 71% shade) and 3 replications. The LSD test was used for comparing treatment means with a level of significance of P
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