油棕三个品种中各器官养分含量的比较研究

以RYL4、RYL5、RYL6三个品种油棕为研究材料,对各个器官(鲜叶、鲜茎、鲜根、鲜雄花、鲜小果、鲜熟果、鲜果穗、鲜果仁)中五大养分元素N、P、K、Ca、Mg的含量进行研究。结果表明:(1)各器官养分元素的高低顺序:鲜叶、鲜雄花、鲜熟果为NKCaMgP;鲜茎、鲜小果、鲜果穗为KNCaMgP;鲜根为KNMgCaP;鲜果仁为NKPMgCa。(2)不同器官总养分含量高低顺序:鲜小果鲜雄花鲜叶鲜果穗鲜果仁鲜根鲜茎鲜熟果。(3)不同品种油棕各器官养分含量高低顺序:鲜叶为RYL4RYL6RYL5;鲜茎、鲜雄花、鲜小果为RYL5RYL4RYL6;鲜根为RYL6RYL4RYL5;鲜熟果为RYL6RYL5RYL4;鲜果穗、鲜果仁为RYL5RYL6RYL4。

Comparison of Nutrient Contents in Organs of Three Oil Palm Varieties

This experiment studied the content of five nutritive elements N, P, K , Ca and Mg in different organs （fresh leaf, stem, root, male flowers, young fruit, ripe fruit, fresh ear and kernel） of three oil palms varieties （RYL4 RYL5 and RYL6）. The results showed that： （1） the order of nutrient elements content in fresh leaf, fresh male flowers and fresh ripe fruit were N 〉 K 〉 Ca 〉 Mg 〉 P; in Fresh stem, fresh small fruit and fruit ear were K〉 N〉 Ca 〉 Mg 〉 P;in fresh root was K〉 N〉 Mg 〉 Ca 〉 P;in fresh nut was N 〉 K 〉 P 〉 Mg 〉 Ca. （2） the order of total nutrient content in different organs was：fresh small fruit〉 fresh male flowers〉 fresh leaf〉fresh ear 〉fresh nut〉 fresh root 〉 fresh stem〉fresh ripe fruit. （3） the order of nutrient content of each organ in different varieties was：in fresh leaf was RYL4 〉 RYL6 〉 RYL5; in fresh stem, fresh male flowers and fresh small fruit were RYL5 〉 RYL4〉 RYL6;in fresh root was RYL6 〉 RYL4 〉 RYL5;in fresh ripe fruit was RYL6 〉 RYL5 〉 RYL4;in fresh ear and fresh nut was RYL5〉 RYL6〉 RYL4.