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本文通过开展脐橙平衡施肥试验,研究其对脐橙产量、品质及养分吸收的影响,为脐橙增产提质和合理施肥提供理论依据。结果表明,平衡氮磷钾施肥对脐橙产量具有明显的增产效果,达1813.2 kg/亩,分别比CK、XG、NP、NK和PK增产41.1%、13.9%、31.6%、27.3%和30.1%;同时氮磷钾平衡施用能够显著提高脐橙糖分、Vc、糖酸比、可溶性固形物含量以及养分的吸收,说明平衡施肥是一项增产节支的重要技术措施,在脐橙生产中具有重要意义。
In this paper, we conducted a balanced fertilization experiment on navel orange to study its effects on the yield, quality and nutrient absorption of navel orange and provide a theoretical basis for increasing production, improving quality and fertilizing navel orange. The results showed that balanced NPK fertilization had a significant yield increase effect on navel orange yield of 1813.2 kg / mu, which was 41.1%, 13.9%, 31.6%, 27.3% and 30.1% higher than CK, XG, NP, NK and PK respectively. At the same time, the balanced application of N, P and K could significantly improve the Navel orange sugar, Vc, sugar acid ratio, soluble solids content and nutrient absorption, indicating that balanced fertilization is an important technical measure to increase yield and reduce expenditure, which is of great significance in navel orange production.