Abstract: To explore the suitable planting distance for peanut intercropped in walnut grove, the experiment used Jinhua 10 and Huayu 33 as materials to study the differences of growth, dry matter accumulation,photosynthesis property and yield of peanut in different rows under the condition of peanut intercropped in walnut grove.The results showed the growth,dry matter accumulation,leaf area index(LAI) and yield of peanut in different rows were obviously different when the planting distance between peanut and 6-year-old walnut trunk was below 90 cm.As the increase of the distance, the growth advantage was significant.The growth,dry matter accumulation,LAI and yield of peanut in different rows showed no obvious difference when the planting rows were above 90 cm away from the trunk.Compared with the treatments with planting rows 30 cm,60 cm away from the trunk,the average theoretical yields of the three treatments of Jinhua 10,Huayu 33 with planting rows 90 cm,120 cm and 150 cm away from the trunk were respectively increased by 34.43% and 16.07%, 24.36% and 14.60%.Therefore, the optimum intercropping distance of peanut was 90 cm from the trunk of 6-year-old walnut.

Key words: Peanut, Walnut grove, Intercropping, Planting row, Dry matter accumulation, Difference

摘要： 为探究核桃林间作花生种植行离树干的适宜距离，在核桃林间作花生条件下，以花生品种晋花10号和花育33号为材料，研究不同种植行花生生长发育、干物质积累、光合特性及产量的差异。结果表明,在6年生核桃林间作花生且花生种植行距树干<90 cm条件下，不同种植行花生的生长发育、干物质积累、叶面积指数及产量差异显著，随种植行与树干距离的增加表现出明显的生长优势；当花生种植行距树干≥90 cm时，不同种植行花生的生长发育、干物质积累、叶面积指数及产量差异不大，生长优势明显，产量较高，晋花10号、花育33号种植行距树干90、120、150 cm³个处理的平均理论产量比种植行距树干30 cm和60 cm处理分别增产34.43%和16.07%，24.36%和14.60%。由此可见，6年生核桃林间作花生种植行离树干90 cm为最适间作距离。

关键词: 花生, 核桃林, 间作, 种植行, 干物质积累, 差异