有机肥替代化肥对“爱媛28号”橘橙产量和品质的影响

Effects of Partial Substitution of Chemical Fertilizer with Organic Fertilizer on Yield and Quality of ‘Ehime 28’

以“爱媛28号”橘橙初结果树为研究对象,设置S1~S4等4个不同生物有机肥部分替代化肥的比例,除不施肥处理(CK)外,各有机肥替代化肥处理的氮、磷、钾养分量与常规单施化肥(FP)一致,分析不同处理对“爱媛28号”各器官组织养分、土壤理化性质和果实产量、品质的影响.结果表明,相比FP处理,各有机肥替代化肥处理的当年生叶片、枝条、根、花和果的养分含量,以及土壤理化性质、果实产量和内外品质均有不同程度的改善和提高,且各有机肥替代处理的肥料贡献率增长了6.3%~21.7%.整体上以S2和S3处理对“爱媛28号”橘橙初结果树综合效果较好,即生物有机肥替代20%~30%的氮肥、40%~60%的磷肥和30%~45%的钾肥的效果最好.

In this study, initial bearing trees of ‘Ehime 28’ were used as the material, the different ratios of S1-S4 bioorganic fertilizers were set to partially replace chemical fertilizers, and the nitrogen, phosphorus and potassium contents of all fertilization treatments(S1-S4 and FP) were consistent except CK. The effects of different treatments on the nutrients of various organs of ‘Ehime 28’ plants and soil physicochemical properties were analyzed. The effects of different treatments on the nutrients of various organs, soil physical and chemical properties, yield and quality of ‘Ehime 28’ were analyzed. The results showed that compared with FP treatment, the nutrient content, soil physical and chemical properties, fruit yield and internal and external quality of the current-year leaves, branches, roots, flowers and fruits of each organic fertilizer substitution treatment were improved to varying degrees, and the fertilizer contribution rate of each organic fertilizer substitution treatment increased by 6.3%-21.7%. On the whole, S2 and S3 treatments had better comprehensive effect on the early fruiting trees of ‘Ehime 28’, and the effect of replacing 20%-30% nitrogen fertilizer, 40%-60% phosphorus fertilizer and 30%-45% potassium fertilizer with bio-organic fertilizer was the best.