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Positive interaction effect of fertilizer and irrigation on soyabean yield in the Philippines



Positive interaction effect of fertilizer and irrigation on soyabean yield in the Philippines



Maximum yield research Proceedings of symposium on maximum yield research, November 16-18, 1988, New Delhi, India: 172-178



In field trials in 1985-86, soyabeans BTP Sy 4 and SJ 4 were grown at 300 000 and 500 000 plants/ha with 0, 45 or 90 kg each of N, P and K/ha. In 1985 plant density and fertilizer application had no effect on yields. In a similar trial in 1986, when trickle irrigation was supplied 2 or 4 times, seed yields were 2.9 t/ha with no fertilizers and 3.3 t with 90 kg each of N, P and K, 2.7 and 3.5 t/ha with 300 000 and 500 000 plants/ha, resp., and 2.8 and 3.2 t with 2 and 4 irrigations, resp.

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Accession: 001913615

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