Fabrício da Costa Czarnobay, Marcelo Crestani Mota, K. G. Souza, A. Moreira, S. M. Alves, Francismeire Bonadeu, V. C. Godinho
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引用次数: 0
摘要
研究了二季玉米不同生育期对施氮量的响应。该实验在Vilhena的s o Carlos农场进行- Rondônia/巴西。研究了施NBPT(45-00-00)包膜尿素对氮素分裂的影响。对照组(证人组)产量最高，为7962 kg ha-1，其次为V3+V7 (7895 kg ha-1)和V4+V8 (7821 kg ha-1)。V5+V9的产量最低，为6630 kg ha-1，说明在确定作物生产潜力(V4)时，施用尿素越晚，产量越低。
Application of coated urea at different phenological stages on second crop corn
The response of second crop corn to nitrogen application was evaluated at different stages of development. The experiment was conducted on the São Carlos farm in Vilhena – Rondônia/Brazil. The factors under study included the splitting of N associated with the application of coated urea with NBPT (45-00-00) in top dressing. The control group (witness) showed the highest productivity among all treatments, with 7962 kg ha-1, followed by V3+V7 (7895 kg ha-1) and V4+V8 (7821 kg ha-1). The lowest productivity was 6630 kg ha-1 in V5+V9, indicating that the later the urea application in defining the productive potential of the crop (V4), the lower the yields achieved.
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