安康市低产核桃林改造技术

Transformation Technology for Improvement of Low-yield Walnut Plantations in Ankang

安康市核桃园目前普遍存在因实生繁殖、栽植管理粗放等导致的果品产量低、品质差、经济收益不高等问题,对此采取高接换优、土水肥管理、整形修剪、病虫害综合防治等低产林改造技术措施,并对改造成效进行了分析。结果表明:嫁接成活率平均为86.6%,低产改造后,单株结果数、干果果个、果形指数、果壳厚度、单仁重、出仁率等性状都得到了明显改善,综合改良技术能满足现阶段生产需求,值得在安康市及环境和生产条件相近地区推广。

The current problems in the development of walnut industry in Ankang city were described as low yield, poor quality and low economic returns caused by seedling propagation and extensive planting management. The technical measures for improving low-yield plantations such as soil, water and fertilizer management, top-grafting, training and pruning, integrated pest management were suggested for adoption. The results showed that after the low-yield transformation, the average survival rate of grafting reached 86.6%, the number of fruit per plant, the nut size, fruit shape index, fruit shell thickness, single walnut kernel weight and shelling percentage were significantly improved. Comprehensive improvement technology can meet the production demand at the present stage and is worth popularization in Ankang city and other areas with similar environment and production conditions.