Ammonia Volatilization from Urea-Application Influenced Germination and Early Seedling Growth of Dry Direct-Seeded Rice
Ammonia volatilization under application of AS50 (ammonium sulfate, 50 kg N ha−1), AS100 (ammonium sulfate, 100 kg N ha−1), Urea50 (50 kg N ha−1), Urea100 (100 kg N ha−1), Urea50 + NBPT1 (50 kg N ha−1 + 1.09 kg NBPT ha−1), and Urea100 + NBPT2 (100 kg N ha−1 + 2.18 kg NBPT ha−1) in comparison with zero N input (control) in a field experiment. Ammonia volatilization was the sum of ammonia volatilized during 14 days after sowing. Error bars represent the standard error.
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