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土壤肥力是影响松树结实的主要环境因素之一,经营种子园时一般是采取施肥方法以资调节控制。许多试验表明,施肥可以增加开花数和球果产量,但施肥要讲究肥料成份、配比、施用方法、时间及其与土壤类型的相互作用和水份供需关系。作者本人于19 75年所做的一次施肥时效试验表明,施肥季节对火炬松的开花十分重要,8月施肥对来春雌球花增产最为有效。
Soil fertility is one of the main environmental factors that affect the robustness of pine trees. When operating the seed orchard, it is common to adopt fertilization methods to adjust the control. Many experiments show that fertilization can increase the number of flowering and coniferous fruit yield. However, fertilization should pay attention to the composition of fertilizers, proportioning, application method, time and their interaction with soil types and water supply and demand. A self-fertilization experiment conducted by the author in 1975 showed that the fertilization season is very important for the flowering of Pinus taeda. Fertilization in August was the most effective for increasing the yield of female spring flowers in spring.