不同施肥处理对土壤肥力及酿酒葡萄品质的影响

Influence of Different Fertilization Treatments on Soil Fertility and Wine Grapes Composition

贺兰山东麓酿酒葡萄产区土壤贫瘠,为了确保该地区酿酒葡萄的可持续生产,以贺兰山东麓7年生酿酒葡萄品种"梅鹿辄"为试材,研究了不同施肥处理(化肥、生物有机肥、有机无机肥,以不施肥为对照)对土壤肥力及酿酒葡萄品质的影响。结果表明:有机无机肥处理能显著提高土壤有机质含量,在降低土壤pH的同时促进速效氮、磷、钾的养分积累。生物有机肥处理在显著提高酿酒葡萄可溶性固形物含量的同时还能显著降低可滴定酸含量,有机无机肥处理在确保获得高产的同时还能改善糖酸比,提高总酚和花色苷含量。在贫瘠的碱性石灰性土壤上,有机无机肥配施是培肥地力和提高酿酒葡萄产量及品质的有效措施。

The soil of Helan Mountain wine grape production area was poor.In order to ensure the sustainable wine grape production,7-year-old‘Merlot＇wine grapes were used as material to study the influence of soil fertility and wine grapes composition by different fertilization treatments（chemical fertilizer,biological organic fertilizer,organic-inorganic fertilizer,no fertilizer as control）.The results showed that organic-inorganic fertilizer application could significantly improve soil organic matter content,and at the same time improve soil available nitrogen,phosphorus and potassium accumulation while reduce the soil pH.Biological organic could significantly increase grape soluble solids content but also could significantly reduce the titratable acid content.Organic-inorganic fertilizer application could significantly improve the ratio of sugar and acid in ensuring that the increase of total phenolics and anthocyanins content.In the barren alkaline calcareous soil,organic-inorganic fertilizer application was an effective measure to improve soil fertility,yield and and wine grapes composition