葡萄园紫云英还田减量氮肥试验

Experiment on reducing nitrogen fertilizer by returning milk vetch to the field in vineyard

摘要: 在施用等量磷、钾肥的条件下，每667 m²翻压紫云英鲜草1500 kg、氮肥施用量减少10%~20%的处理，不仅可提升土壤有机质和碱解氮含量，而且在不影响葡萄外观品质的前提下提升葡萄产量及果实品质。

Abstract: Under the condition of applying equal amount of phosphorus and potassium fertilizer, the treatment of incorporating 1500 kg/667 m² (22500 kg/hm²) fresh weight of milk vetch and reducing nitrogen fertilizer by10%-20% could promote the content of soil organic matter and available nitrogen, and improve the yield and fruit quality of grape without affecting the appearance quality of grape.