不同类型氮肥品种一次性基施对双季稻产量及肥料利用的影响

摘要

利用田间小区试验，以不施肥为对照，研究不同类型的肥料一次性基施对双季稻产量和氮肥利用的影响，结果表明：不同肥料品种一次性基施后均能显著提高水稻产量。以施用包膜控释尿素SCU的产量最高，氮素吸收利用效率最高，经济效益最好，其次为金正大肥和袁氏肥，普通速效化肥效果最差。%Through field plot tests with CK ( no fertilizer application ) , we studied the effects of one -off basal application of different types of nitrogen fertilizer varieties on the yield of double -cropping rice as well as the utilizing rate of nitrogen fertilizer . The results indicated that the one -off basal application of tested all nitrogen fertilizer varieties could increase the yield of double -cropping rice significantly .The treatment of applying SCU obtained the highest rice yield , the highest nitrogen -utilizing rate and the best economic benefit , followed by the treatments of applying Jinzhengda fertilizer and Yuan's fertilizer, and the application of common available chemical fertilizer got the worst results .