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首页> 外文期刊>Advances in Forestry Science >The effect of fertilization at planting for Pinus elliottii and Pinus caribea var. hondurensis plantations and top dressing for Pinus elliottii plantations, in Guareí, SP, Brazil.
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The effect of fertilization at planting for Pinus elliottii and Pinus caribea var. hondurensis plantations and top dressing for Pinus elliottii plantations, in Guareí, SP, Brazil.

机译：椭圆松和加勒比松播种施肥的影响。巴西瓜雷伊州的洪都拉斯人工林和埃利索斯松人工林的追肥。

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摘要

Pine species play important role in Brazilian economy for solid wood and resin production. However, information about the effect of fertilization on wood and resin production is scarce. Thus, to investigate the relationship between different fertilization regimes on wood/resin productivity further, this paper analyzes the effects of two fertilizing experiments, organized in 2 parts. The first part is about the effect of 5 fertilization treatments at planting for Pinus elliottii (PEE) and Pinus caribea var . hondurensis (PCH), analyzed from two to eight years after planting considering volume, diameter at breast height, basal area, total and dominant height. The second part explored the effect of varying top dressing fertilization treatments on a 17-year-old Pinus elliottii plantation. For the first experiment, fertilization at planting contributed to substantial gains for the parameters evaluated for PCH. For example, volume was 58% higher for trees which received fertilization at planting, compared to the control group. For PEE, fertilization do contributed for gains, but they were not statistically meaningful for all the characteristics evaluated, but for basal area. In the second part, results showed that top dressing fertilization and harvest year had effect on resin production and the best treatment was the number 2. Thus, we concluded that fertilization application management must take into account the factors such as the time, the amount of application and the species being fertilized.
机译：松树在巴西生产实木和树脂的经济中起着重要作用。但是，关于施肥对木材和树脂生产的影响的信息很少。因此，为了进一步研究不同施肥方式对木材/树脂生产力的关系，本文分析了两个施肥实验的效果，这些施肥实验分为两部分。第一部分是关于5种施肥处理对松果（PEE）和加勒比松（Pinus caribea var）的影响。洪都拉斯（PCH），在播种后两到八年进行分析，考虑体积，胸径，基部面积，总高度和优势高度。第二部分探讨了不同的追肥措施对17岁的松树人工林的影响。对于第一个实验，播种时的施肥为PCH评估的参数带来了可观的收益。例如，与对照组相比，种植时受精的树木的体积要高58％。对于PEE，施肥的确为收益做出了贡献，但对于所评估的所有特征，它们在统计学上都没有统计学意义，而是对基础面积而言。在第二部分中，结果表明，追肥和收获年限对树脂产量有影响，而最佳处理方法是数2。因此，我们得出结论，施肥管理必须考虑时间，用量等因素。施用和受精物种。

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