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Short season fodder legume effects on the grain yield and nitrogen economy of barley under dryland conditions



Short season fodder legume effects on the grain yield and nitrogen economy of barley under dryland conditions



Journal of Agricultural Science 96(2): 457-462



Field experiments were conducted for 2 yr under semi-arid, seasonally dry, tropical conditions to evaluate the possibility of growing 2 crops under natural precipitation where traditionally 1 crop is grown. Short-season fodder crops of cowpea (Vigna unguiculata), guar bean (Cyamopsis tetragonoloba), moth bean (V. aconitifolia), soybean (Glycine max.) or pearl millet (Pennisetum typhoides) were harvested before the end of monsoon rains. These crops enabled sufficient recharge of the profile from the precipitation subsequently received to allow barley to be sown in the winter season. Although the pearl millet yielded more biomass, the soil fertility enrichment was greater from the legume fodders. The grain yield and total N removal by barley was higher after the legume fodders than after the non-legume fodder pearl millet. Benefits from the previous fodder legumes were equivalent to or more than 40 kg N/ha applied to barley crop following a previous crop of pearl millet.

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Accession: 006411099

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