期刊论文

中文

湖南农业科学

1006-060X

2009

6

41-43

10.3969/j.issn.1006-060X.2009.06.014

2006BAD21B03:国家高技术研究发展计划（863计划）

本校为第一机构

采用二次正交旋转组合设计研究氮、磷、钾、硫、柠檬酸、油菜素内酯对油菜油酸含量的作用效果.单因素效应分析氮肥施用量与油酸含量呈直线负相关.磷肥、钾肥施用量与油酸含量都呈二次曲线负相关.在一定范围内,施用磷肥、钾肥有利于油菜油酸含量的提高,过量则降低油酸含量.硫肥施用量与油酸含量呈直线正相关.该试验条件下在低氮、中磷、中钾、高硫水平下可以获得较高的油酸含量:当纯氮、纯磷、纯钾、纯硫的含量分别为0、112.5、112.5、60 kg/hm~2时获得最高油酸含量67.51%.油菜素内酯和柠檬酸的效果不显著,可能与施用时期和施用量有关.

The combination of quadratic orthogonal rotation used to analyze the effects of nitrogen, phosphorus, potassium, sulfur, citric acid and brassionlide （BR） on oleic-acid content of rape. The method of single factor analysis indicated that a negative linearity relationship was between nitrogen dosage and oleic-acid content; the negative quadratic curve relationships were between the dosages of phosphorus, potassium and oleic-acid content; a positive linearity relationship was between sulfur dosage and oleie-acid content. The oleic-acid content ...