氮肥用量对冬油菜籽粒产量和品质的影响

宋毅, 李静, 谷贺贺, 陆志峰, 廖世鹏, 李小坤, 丛日环, 任涛, 鲁剑巍

Effects of application of nitrogen on seed yield and quality of winter oilseed rape (Brassica napus L.)

SONG Yi, LI Jing, GU He-He, LU Zhi-Feng, LIAO Shi-Peng, LI Xiao-Kun, CONG Ri-Huan, REN Tao, LU Jian-Wei

图3 氮肥用量与籽粒产量、蛋白质含量、硫甙含量、油含量、和饱和脂肪酸比例的关系 使用2年数据进行拟合, 其氮肥用量与产量使用二次函数进行拟合, 蛋白质产量、含油量、硫甙和饱和脂肪酸比例使用线性拟合, 分别取拟合最高产量的75%和95%为生产目标以确定氮肥施肥量。

Fig. 3 Relationship between N application rates and rapeseed yield, protein content, glucosinolate content, oil content and saturated fatty acid ratio Two years data are used for fitting. The N application rates and yield are fitted by quadratic function. The protein content, oil content, glucosinolate content and saturated fatty acid rate are fitted by linear fitting. 75% and 95% of the highest yield are taken as production targets to determine the nitrogen fertilizer rate.