红松嫁接果林培育及丰产技术探究

Exploration on Cultivation and High Yield Techniques ofPinus koraiensis Grafted Fruit Forest

以栽植16年生嫁接红松果林为试材,研究不同初植密度、初期结实处理、3~5年间隔期的小平头、打底枝及适量施用高磷复合肥等技术手段对红松树体长势、结实量及经济效益的影响,旨在探究红松嫁接果林培育及丰产技术。结果表明:集约管理手段相似情况的现阶段,红松嫁接树产出经济效益要高于实生树30倍,4 m×3 m株行距密度的红松嫁接树的公顷产出效益是4 m×6 m密度的红松嫁接树的1.6倍;4 m×6 m密度的红松嫁接树的长势略好于4 m×3 m密度的红松嫁接树,实生树体长势最优。

Using a 16 year old grafted Pinus koraiensis fruit forest as the experimental material,this study investigated the effects of different initial planting densities,initial fruiting treatments,small flat heads at intervals of 3-5 years,bottom branches,and appropriate application of high phosphorus compound fertilizers on the growth,fruiting capacity,and economic benefits of Pinus koraiens trees.The aim was to explore the cultivation and high-yield techniques of Pinus koraiensis grafted fruit forests.The results showed that under similar intensive management methods,the economic benefits of Pinus koraiensis grafting trees were 30 times higher than those of actual trees,and the yield benefits per mu of Pinus koraiensis grafting trees with a spacing density of 4m×3m were 1.6 times higher than that of Pinus koraiensis grafting trees with a spacing density of 4 m×6 m;The growth of a 4m×6m density Pinus koraiensis grafted tree was slightly better than that of a 4m×3m density Pinus koraiensis grafted tree,and the growth of the actual tree was the best.