不同用量有机肥对芒果果实品质及土壤肥力的影响

通过田间小区试验,研究了不同用量有机肥处理对芒果果实品质及果园土壤肥力的影响,旨在为生产上芒果科学施肥提供技术支持。结果表明:与不施有机肥处理(CK)比较,增施有机肥处理使果实可溶性固形物含量提高10.1%~21.6%、Vc含量提高3.1%~38.4%、可滴定酸含量下降6.6%~16.0%、固酸比提高17.9%~44.9%。增施有机肥提高了土壤有机质、全N、有效P、速效K、交换性Ca、交换性Mg、电导率及p H值,促进土壤肥力水平的提升。综合比较,以T2处理(有机肥7.5 kg/株+尿素400 g/株+高钾复合肥1.25 kg/株)对改善果实品质和改良土壤性状效果最好。

Effects of different organic manure application rate on mango fruit quality and soil fertility

Abatract: A field plot experiment was carried out to study the effects of different organic manure application rate on mango fruit quality and soil fertility. The result showed that compared with chemical fertilizer (CK), the applications of organic manure increased the fruit total soluble solid, Vc, ratio of tss and acid, by 10. 1% ~21. 6%, 3. 1% ~38. 4%, 17. 9% ~44. 9%, total titration acid decreased by 6. 6% ~16. 0%. Meanwhile, different organic manure application rates increased soil organic matter, total nitrogen, available phosphorus, available potassium, exchangeable calcium, exchangeable mag-nesium, electrical conductivity and pH, then soil fertility was improved significantly. Applying 7. 5 kg organic manure with 400 g urea and 1. 25 kg high potassium compound fertilizer to each plant was the best, which improved the fruit quality and soil fertility effectively.