【摘要】 施肥是促进林木生长、提高产量和质量的重要措施之一,为了解肥料对膏桐幼林结实的影响,采用随机区组试验设计,对膏桐幼林进行施肥配方试验,结果表明:仅施用氮肥对膏桐增产作用不大,但仅施磷肥或钾肥却对膏桐增产起明显的促进作用,在氮、钾一定时,施磷肥量超过一定水平,对膏桐产果量影响不大,施肥处理对出仁率和出油率影响不明显。更多还原

【Abstract】 Fertilization is generally one of the most important measures to promote the growth,yield and quality of forest.A random block fertilization experiment was conducted to study the effect of fertilizers on fruiting of the young Jatropha curcas plantations.The results showed that the single nitrogen fertilizer did not have much effect on the fruiting,while the pure phosphorus or pure potassium fertilizer could significantly promote the seed yield of the young J.curcas plantations.With fixed dosages of nitrogen and potassium fertilizers,when the dosage of phosphorous fertilizer was over a certain level,it did not have significant promotion effect on fruit production.The study also indicated that the fertilization did not have obvious effect on increasing the kernel or oil yield of the fruits born by the young plantations of J.curcas.更多还原