柑橘皮渣有机肥对特洛维塔甜橙树体营养、果实品质和经济效益的影响
Effect of Citrus Peel Residue-Based Organic Fertilizer (COF) on Leaf Nutrition, Fruit Quality and Economic Benefit of Terovita Orange

为了研究柑橘皮渣有机肥施用对柑橘叶片营养和果实品质及产量效益的影响，以特洛维塔甜橙[Citrus sinensis（L.）Osbeck]为试材，开展了田间小区试验.结果表明：较复合肥处理，柑橘皮渣有机肥可更好地满足甜橙生长过程中对养分的需求、提高柑橘果面亮度.一次性株施11.3 kg处理，果实的TSS，TA和固酸比均高于复合肥处理，其他柑橘皮渣有机肥处理改善果实品质方面稍弱于复合肥.不同皮渣有机肥施用量使柑橘每666.7 m²产量提高了7.25%~90.68%，最高可达2 482.96 kg；经济效益增长了0.15~1.21倍.综合比较，对特洛维塔甜橙株施11.3 kg皮渣有机肥量较适宜，可获得较好的柑橘产量和经济效益，若配施一定的复合肥可获得较好的品质，这还有待进一步试验验证.
A field plot experiment was conducted with Terovita sweet orange[Citrus sinensis (L.) Osbeck] to study the effect of citrus peel residue-based organic fertilizer (COF) on its leaf nutrition, fruit quality and economic benefit.The results showed that COF could well satisfy the nutrient demand of sweet orange during its growth and improve its fruit surface brightness compared with the chemical fertilizer (CF). A single application of COF at 11.3 kg per plant gave higher TSS, TA and solid acid ratio than the CF treatment, while the improvement of other quality indicators of the fruit by COF was a bit inferior to that by CF. The yield of citrus was improved by various COF treatments in the range from 7.25% to 90.68%, the highest being 2 482.96 kg per mu (1 ha=15 mu), and the economic benefit was increased by 0.15~1.21 times per mu.The results of this experiment showed that 11.3 kg per plant was an appropriate rate of COF application for satisfactory fruit yield and economic benefit from Terovita sweet orange. Whether a certain compound fertilizer involving COF can further improve fruit quality needs to be verified in future study