Response of growth,yield and leaf nutrient of walnut to different organic manure

【Objective】To study the effect of different organic manure with equivalent NPK chemical fertilizer on growth,yield and leaf nutrient of walnut of different ages.【Methods】Three-year-old and eight-year-old‘Xiangling'walnut were used as experimental materials with the method of randomized block fertilization.【Results】The combined fertilization of NPK chemical fertilizer with organic manure was better for improving the growth,yield and leaf nutrient of walnut than fertilization of NPK chemical fertilizer(CK). The effect of chemical fertilizer combined with organic manure and biological manure(T3) was significantly higher than other treatments. The length and diameter of new shoot of three-year-old walnut were increased by 17.66% and 13.52% compared with CK. The weight of fruit,dry fruit and kernel were increased by 35.60%,36.81% and 38.34%,respectively. The total P and K were increased by 3.81 g·kg-1and 2.02 g·kg- 1.【Conclusion】The chemical fertilizer combined with organic manure and biological manure could improve the growth,yield and leaf nutrient of walnut better.: WalnutOrganic manureGrowthYieldLeaf nutrient